Python __builtin__ 模块,bool() 实例源码

我们从Python开源项目中,提取了以下50个代码示例,用于说明如何使用__builtin__.bool()

项目:fypp    作者:aradi    | 项目源码 | 文件源码
def _get_conditional_content(self, fname, spans, conditions, contents):
        out = []
        ieval = []
        peval = []
        multiline = (spans[0][0] != spans[-1][1])
        for condition, content, span in zip(conditions, contents, spans):
            try:
                cond = bool(self._evaluate(condition, fname, span[0]))
            except Exception as exc:
                msg = "exception occured when evaluating '{0}'"\
                      .format(condition)
                raise FyppFatalError(msg, fname, span, exc)
            if cond:
                if self._linenums and not self._diverted and multiline:
                    out.append(linenumdir(span[1], fname))
                outcont, ievalcont, pevalcont = self._render(content)
                ieval += _shiftinds(ievalcont, len(out))
                peval += pevalcont
                out += outcont
                break
        if self._linenums and not self._diverted and multiline:
            out.append(linenumdir(spans[-1][1], fname))
        return out, ieval, peval
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def str2bool(value):
    """
    Tries to transform a string supposed to represent a boolean to a boolean.

    Parameters
    ----------
    value : str
        The string that is transformed to a boolean.

    Returns
    -------
    boolval : bool
        The boolean representation of `value`.

    Raises
    ------
    ValueError
        If the string is not 'True' or 'False' (case independent)

    Examples
    --------
    >>> np.lib._iotools.str2bool('TRUE')
    True
    >>> np.lib._iotools.str2bool('false')
    False

    """
    value = value.upper()
    if value == asbytes('TRUE'):
        return True
    elif value == asbytes('FALSE'):
        return False
    else:
        raise ValueError("Invalid boolean")
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def str2bool(value):
    """
    Tries to transform a string supposed to represent a boolean to a boolean.

    Parameters
    ----------
    value : str
        The string that is transformed to a boolean.

    Returns
    -------
    boolval : bool
        The boolean representation of `value`.

    Raises
    ------
    ValueError
        If the string is not 'True' or 'False' (case independent)

    Examples
    --------
    >>> np.lib._iotools.str2bool('TRUE')
    True
    >>> np.lib._iotools.str2bool('false')
    False

    """
    value = value.upper()
    if value == asbytes('TRUE'):
        return True
    elif value == asbytes('FALSE'):
        return False
    else:
        raise ValueError("Invalid boolean")
项目:fypp    作者:aradi    | 项目源码 | 文件源码
def render(self, tree, divert=False, fixposition=False):
        '''Renders a tree.

        Args:
            tree (fypp-tree): Tree to render.
            divert (bool): Whether output will be diverted and sent for further
                processing, so that no line numbering directives and
                postprocessing are needed at this stage. (Default: False)
            fixposition (bool): Whether file name and line position (variables
                _FILE_ and _LINE_) should be kept at their current values or
                should be updated continuously. (Default: False).

        Returns: str: Rendered string.
        '''
        diverted = self._diverted
        self._diverted = divert
        fixedposition = self._fixedposition
        self._fixedposition = fixposition
        output, eval_inds, eval_pos = self._render(tree)
        if not self._diverted and eval_inds:
            self._postprocess_eval_lines(output, eval_inds, eval_pos)
        self._diverted = diverted
        self._fixedposition = fixedposition
        txt = ''.join(output)

        return txt
项目:fypp    作者:aradi    | 项目源码 | 文件源码
def _handle_assert(self, fname, span, expr):
        result = ''
        try:
            cond = bool(self._evaluate(expr, fname, span[0]))
        except Exception as exc:
            msg = "exception occured when evaluating assert condition '{0}'"\
                .format(expr)
            raise FyppFatalError(msg, fname, span, exc)
        if not cond:
            msg = "Assertion failed ('{0}')".format(expr)
            raise FyppStopRequest(msg, fname, span)
        if self._linenums and not self._diverted:
            result = linenumdir(span[1], fname)
        return result
项目:PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda    作者:SignalMedia    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda    作者:SignalMedia    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda    作者:SignalMedia    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def str2bool(value):
    """
    Tries to transform a string supposed to represent a boolean to a boolean.

    Parameters
    ----------
    value : str
        The string that is transformed to a boolean.

    Returns
    -------
    boolval : bool
        The boolean representation of `value`.

    Raises
    ------
    ValueError
        If the string is not 'True' or 'False' (case independent)

    Examples
    --------
    >>> np.lib._iotools.str2bool('TRUE')
    True
    >>> np.lib._iotools.str2bool('false')
    False

    """
    value = value.upper()
    if value == asbytes('TRUE'):
        return True
    elif value == asbytes('FALSE'):
        return False
    else:
        raise ValueError("Invalid boolean")
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def str2bool(value):
    """
    Tries to transform a string supposed to represent a boolean to a boolean.

    Parameters
    ----------
    value : str
        The string that is transformed to a boolean.

    Returns
    -------
    boolval : bool
        The boolean representation of `value`.

    Raises
    ------
    ValueError
        If the string is not 'True' or 'False' (case independent)

    Examples
    --------
    >>> np.lib._iotools.str2bool('TRUE')
    True
    >>> np.lib._iotools.str2bool('false')
    False

    """
    value = value.upper()
    if value == asbytes('TRUE'):
        return True
    elif value == asbytes('FALSE'):
        return False
    else:
        raise ValueError("Invalid boolean")
项目:deliver    作者:orchestor    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:deliver    作者:orchestor    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:deliver    作者:orchestor    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:deliver    作者:orchestor    | 项目源码 | 文件源码
def str2bool(value):
    """
    Tries to transform a string supposed to represent a boolean to a boolean.

    Parameters
    ----------
    value : str
        The string that is transformed to a boolean.

    Returns
    -------
    boolval : bool
        The boolean representation of `value`.

    Raises
    ------
    ValueError
        If the string is not 'True' or 'False' (case independent)

    Examples
    --------
    >>> np.lib._iotools.str2bool('TRUE')
    True
    >>> np.lib._iotools.str2bool('false')
    False

    """
    value = value.upper()
    if value == asbytes('TRUE'):
        return True
    elif value == asbytes('FALSE'):
        return False
    else:
        raise ValueError("Invalid boolean")
项目:Alfred    作者:jkachhadia    | 项目源码 | 文件源码
def _add_aliases():
    for a in typeinfo.keys():
        name = english_lower(a)
        if not isinstance(typeinfo[a], tuple):
            continue
        typeobj = typeinfo[a][-1]
        # insert bit-width version for this class (if relevant)
        base, bit, char = bitname(typeobj)
        if base[-3:] == 'int' or char[0] in 'ui':
            continue
        if base != '':
            myname = "%s%d" % (base, bit)
            if ((name != 'longdouble' and name != 'clongdouble') or
                   myname not in allTypes.keys()):
                allTypes[myname] = typeobj
                sctypeDict[myname] = typeobj
                if base == 'complex':
                    na_name = '%s%d' % (english_capitalize(base), bit//2)
                elif base == 'bool':
                    na_name = english_capitalize(base)
                    sctypeDict[na_name] = typeobj
                else:
                    na_name = "%s%d" % (english_capitalize(base), bit)
                    sctypeDict[na_name] = typeobj
                sctypeNA[na_name] = typeobj
                sctypeDict[na_name] = typeobj
                sctypeNA[typeobj] = na_name
                sctypeNA[typeinfo[a][0]] = na_name
        if char != '':
            sctypeDict[char] = typeobj
            sctypeNA[char] = na_name
项目:Alfred    作者:jkachhadia    | 项目源码 | 文件源码
def issubclass_(arg1, arg2):
    """
    Determine if a class is a subclass of a second class.

    `issubclass_` is equivalent to the Python built-in ``issubclass``,
    except that it returns False instead of raising a TypeError if one
    of the arguments is not a class.

    Parameters
    ----------
    arg1 : class
        Input class. True is returned if `arg1` is a subclass of `arg2`.
    arg2 : class or tuple of classes.
        Input class. If a tuple of classes, True is returned if `arg1` is a
        subclass of any of the tuple elements.

    Returns
    -------
    out : bool
        Whether `arg1` is a subclass of `arg2` or not.

    See Also
    --------
    issubsctype, issubdtype, issctype

    Examples
    --------
    >>> np.issubclass_(np.int32, np.int)
    True
    >>> np.issubclass_(np.int32, np.float)
    False

    """
    try:
        return issubclass(arg1, arg2)
    except TypeError:
        return False
项目:Alfred    作者:jkachhadia    | 项目源码 | 文件源码
def issubdtype(arg1, arg2):
    """
    Returns True if first argument is a typecode lower/equal in type hierarchy.

    Parameters
    ----------
    arg1, arg2 : dtype_like
        dtype or string representing a typecode.

    Returns
    -------
    out : bool

    See Also
    --------
    issubsctype, issubclass_
    numpy.core.numerictypes : Overview of numpy type hierarchy.

    Examples
    --------
    >>> np.issubdtype('S1', str)
    True
    >>> np.issubdtype(np.float64, np.float32)
    False

    """
    if issubclass_(arg2, generic):
        return issubclass(dtype(arg1).type, arg2)
    mro = dtype(arg2).type.mro()
    if len(mro) > 1:
        val = mro[1]
    else:
        val = mro[0]
    return issubclass(dtype(arg1).type, val)


# This dictionary allows look up based on any alias for an array data-type
项目:Alfred    作者:jkachhadia    | 项目源码 | 文件源码
def str2bool(value):
    """
    Tries to transform a string supposed to represent a boolean to a boolean.

    Parameters
    ----------
    value : str
        The string that is transformed to a boolean.

    Returns
    -------
    boolval : bool
        The boolean representation of `value`.

    Raises
    ------
    ValueError
        If the string is not 'True' or 'False' (case independent)

    Examples
    --------
    >>> np.lib._iotools.str2bool('TRUE')
    True
    >>> np.lib._iotools.str2bool('false')
    False

    """
    value = value.upper()
    if value == asbytes('TRUE'):
        return True
    elif value == asbytes('FALSE'):
        return False
    else:
        raise ValueError("Invalid boolean")
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def bitname(obj):
    """Return a bit-width name for a given type object"""
    name = obj.__name__
    base = ''
    char = ''
    try:
        if name[-1] == '_':
            newname = name[:-1]
        else:
            newname = name
        info = typeinfo[english_upper(newname)]
        assert(info[-1] == obj)  # sanity check
        bits = info[2]

    except KeyError:     # bit-width name
        base, bits = _evalname(name)
        char = base[0]

    if name == 'bool_':
        char = 'b'
        base = 'bool'
    elif name == 'void':
        char = 'V'
        base = 'void'
    elif name == 'object_':
        char = 'O'
        base = 'object'
        bits = 0
    elif name == 'datetime64':
        char = 'M'
    elif name == 'timedelta64':
        char = 'm'

    if sys.version_info[0] >= 3:
        if name == 'bytes_':
            char = 'S'
            base = 'bytes'
        elif name == 'str_':
            char = 'U'
            base = 'str'
    else:
        if name == 'string_':
            char = 'S'
            base = 'string'
        elif name == 'unicode_':
            char = 'U'
            base = 'unicode'

    bytes = bits // 8

    if char != '' and bytes != 0:
        char = "%s%d" % (char, bytes)

    return base, bits, char
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def _set_up_aliases():
    type_pairs = [('complex_', 'cdouble'),
                  ('int0', 'intp'),
                  ('uint0', 'uintp'),
                  ('single', 'float'),
                  ('csingle', 'cfloat'),
                  ('singlecomplex', 'cfloat'),
                  ('float_', 'double'),
                  ('intc', 'int'),
                  ('uintc', 'uint'),
                  ('int_', 'long'),
                  ('uint', 'ulong'),
                  ('cfloat', 'cdouble'),
                  ('longfloat', 'longdouble'),
                  ('clongfloat', 'clongdouble'),
                  ('longcomplex', 'clongdouble'),
                  ('bool_', 'bool'),
                  ('unicode_', 'unicode'),
                  ('object_', 'object')]
    if sys.version_info[0] >= 3:
        type_pairs.extend([('bytes_', 'string'),
                           ('str_', 'unicode'),
                           ('string_', 'string')])
    else:
        type_pairs.extend([('str_', 'string'),
                           ('string_', 'string'),
                           ('bytes_', 'string')])
    for alias, t in type_pairs:
        allTypes[alias] = allTypes[t]
        sctypeDict[alias] = sctypeDict[t]
    # Remove aliases overriding python types and modules
    to_remove = ['ulong', 'object', 'unicode', 'int', 'long', 'float',
                 'complex', 'bool', 'string', 'datetime', 'timedelta']
    if sys.version_info[0] >= 3:
        # Py3K
        to_remove.append('bytes')
        to_remove.append('str')
        to_remove.remove('unicode')
        to_remove.remove('long')
    for t in to_remove:
        try:
            del allTypes[t]
            del sctypeDict[t]
        except KeyError:
            pass
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def issctype(rep):
    """
    Determines whether the given object represents a scalar data-type.

    Parameters
    ----------
    rep : any
        If `rep` is an instance of a scalar dtype, True is returned. If not,
        False is returned.

    Returns
    -------
    out : bool
        Boolean result of check whether `rep` is a scalar dtype.

    See Also
    --------
    issubsctype, issubdtype, obj2sctype, sctype2char

    Examples
    --------
    >>> np.issctype(np.int32)
    True
    >>> np.issctype(list)
    False
    >>> np.issctype(1.1)
    False

    Strings are also a scalar type:

    >>> np.issctype(np.dtype('str'))
    True

    """
    if not isinstance(rep, (type, dtype)):
        return False
    try:
        res = obj2sctype(rep)
        if res and res != object_:
            return True
        return False
    except:
        return False
项目:radar    作者:amoose136    | 项目源码 | 文件源码
def update(self, func, default=None, testing_value=None,
               missing_values=asbytes(''), locked=False):
        """
        Set StringConverter attributes directly.

        Parameters
        ----------
        func : function
            Conversion function.
        default : any, optional
            Value to return by default, that is, when the string to be
            converted is flagged as missing. If not given,
            `StringConverter` tries to supply a reasonable default value.
        testing_value : str, optional
            A string representing a standard input value of the converter.
            This string is used to help defining a reasonable default
            value.
        missing_values : sequence of str, optional
            Sequence of strings indicating a missing value.
        locked : bool, optional
            Whether the StringConverter should be locked to prevent
            automatic upgrade or not. Default is False.

        Notes
        -----
        `update` takes the same parameters as the constructor of
        `StringConverter`, except that `func` does not accept a `dtype`
        whereas `dtype_or_func` in the constructor does.

        """
        self.func = func
        self._locked = locked
        # Don't reset the default to None if we can avoid it
        if default is not None:
            self.default = default
            self.type = self._dtypeortype(self._getdtype(default))
        else:
            try:
                tester = func(testing_value or asbytes('1'))
            except (TypeError, ValueError):
                tester = None
            self.type = self._dtypeortype(self._getdtype(tester))
        # Add the missing values to the existing set
        if missing_values is not None:
            if _is_bytes_like(missing_values):
                self.missing_values.add(missing_values)
            elif hasattr(missing_values, '__iter__'):
                for val in missing_values:
                    self.missing_values.add(val)
        else:
            self.missing_values = []
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def bitname(obj):
    """Return a bit-width name for a given type object"""
    name = obj.__name__
    base = ''
    char = ''
    try:
        if name[-1] == '_':
            newname = name[:-1]
        else:
            newname = name
        info = typeinfo[english_upper(newname)]
        assert(info[-1] == obj)  # sanity check
        bits = info[2]

    except KeyError:     # bit-width name
        base, bits = _evalname(name)
        char = base[0]

    if name == 'bool_':
        char = 'b'
        base = 'bool'
    elif name == 'void':
        char = 'V'
        base = 'void'
    elif name == 'object_':
        char = 'O'
        base = 'object'
        bits = 0
    elif name == 'datetime64':
        char = 'M'
    elif name == 'timedelta64':
        char = 'm'

    if sys.version_info[0] >= 3:
        if name == 'bytes_':
            char = 'S'
            base = 'bytes'
        elif name == 'str_':
            char = 'U'
            base = 'str'
    else:
        if name == 'string_':
            char = 'S'
            base = 'string'
        elif name == 'unicode_':
            char = 'U'
            base = 'unicode'

    bytes = bits // 8

    if char != '' and bytes != 0:
        char = "%s%d" % (char, bytes)

    return base, bits, char
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def _set_up_aliases():
    type_pairs = [('complex_', 'cdouble'),
                  ('int0', 'intp'),
                  ('uint0', 'uintp'),
                  ('single', 'float'),
                  ('csingle', 'cfloat'),
                  ('singlecomplex', 'cfloat'),
                  ('float_', 'double'),
                  ('intc', 'int'),
                  ('uintc', 'uint'),
                  ('int_', 'long'),
                  ('uint', 'ulong'),
                  ('cfloat', 'cdouble'),
                  ('longfloat', 'longdouble'),
                  ('clongfloat', 'clongdouble'),
                  ('longcomplex', 'clongdouble'),
                  ('bool_', 'bool'),
                  ('unicode_', 'unicode'),
                  ('object_', 'object')]
    if sys.version_info[0] >= 3:
        type_pairs.extend([('bytes_', 'string'),
                           ('str_', 'unicode'),
                           ('string_', 'string')])
    else:
        type_pairs.extend([('str_', 'string'),
                           ('string_', 'string'),
                           ('bytes_', 'string')])
    for alias, t in type_pairs:
        allTypes[alias] = allTypes[t]
        sctypeDict[alias] = sctypeDict[t]
    # Remove aliases overriding python types and modules
    to_remove = ['ulong', 'object', 'unicode', 'int', 'long', 'float',
                 'complex', 'bool', 'string', 'datetime', 'timedelta']
    if sys.version_info[0] >= 3:
        # Py3K
        to_remove.append('bytes')
        to_remove.append('str')
        to_remove.remove('unicode')
        to_remove.remove('long')
    for t in to_remove:
        try:
            del allTypes[t]
            del sctypeDict[t]
        except KeyError:
            pass
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def issctype(rep):
    """
    Determines whether the given object represents a scalar data-type.

    Parameters
    ----------
    rep : any
        If `rep` is an instance of a scalar dtype, True is returned. If not,
        False is returned.

    Returns
    -------
    out : bool
        Boolean result of check whether `rep` is a scalar dtype.

    See Also
    --------
    issubsctype, issubdtype, obj2sctype, sctype2char

    Examples
    --------
    >>> np.issctype(np.int32)
    True
    >>> np.issctype(list)
    False
    >>> np.issctype(1.1)
    False

    Strings are also a scalar type:

    >>> np.issctype(np.dtype('str'))
    True

    """
    if not isinstance(rep, (type, dtype)):
        return False
    try:
        res = obj2sctype(rep)
        if res and res != object_:
            return True
        return False
    except:
        return False
项目:krpcScripts    作者:jwvanderbeck    | 项目源码 | 文件源码
def update(self, func, default=None, testing_value=None,
               missing_values=asbytes(''), locked=False):
        """
        Set StringConverter attributes directly.

        Parameters
        ----------
        func : function
            Conversion function.
        default : any, optional
            Value to return by default, that is, when the string to be
            converted is flagged as missing. If not given,
            `StringConverter` tries to supply a reasonable default value.
        testing_value : str, optional
            A string representing a standard input value of the converter.
            This string is used to help defining a reasonable default
            value.
        missing_values : sequence of str, optional
            Sequence of strings indicating a missing value.
        locked : bool, optional
            Whether the StringConverter should be locked to prevent
            automatic upgrade or not. Default is False.

        Notes
        -----
        `update` takes the same parameters as the constructor of
        `StringConverter`, except that `func` does not accept a `dtype`
        whereas `dtype_or_func` in the constructor does.

        """
        self.func = func
        self._locked = locked
        # Don't reset the default to None if we can avoid it
        if default is not None:
            self.default = default
            self.type = self._dtypeortype(self._getdtype(default))
        else:
            try:
                tester = func(testing_value or asbytes('1'))
            except (TypeError, ValueError):
                tester = None
            self.type = self._dtypeortype(self._getdtype(tester))
        # Add the missing values to the existing set
        if missing_values is not None:
            if _is_bytes_like(missing_values):
                self.missing_values.add(missing_values)
            elif hasattr(missing_values, '__iter__'):
                for val in missing_values:
                    self.missing_values.add(val)
        else:
            self.missing_values = []
项目:PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda    作者:SignalMedia    | 项目源码 | 文件源码
def bitname(obj):
    """Return a bit-width name for a given type object"""
    name = obj.__name__
    base = ''
    char = ''
    try:
        if name[-1] == '_':
            newname = name[:-1]
        else:
            newname = name
        info = typeinfo[english_upper(newname)]
        assert(info[-1] == obj)  # sanity check
        bits = info[2]

    except KeyError:     # bit-width name
        base, bits = _evalname(name)
        char = base[0]

    if name == 'bool_':
        char = 'b'
        base = 'bool'
    elif name == 'void':
        char = 'V'
        base = 'void'
    elif name == 'object_':
        char = 'O'
        base = 'object'
        bits = 0
    elif name == 'datetime64':
        char = 'M'
    elif name == 'timedelta64':
        char = 'm'

    if sys.version_info[0] >= 3:
        if name == 'bytes_':
            char = 'S'
            base = 'bytes'
        elif name == 'str_':
            char = 'U'
            base = 'str'
    else:
        if name == 'string_':
            char = 'S'
            base = 'string'
        elif name == 'unicode_':
            char = 'U'
            base = 'unicode'

    bytes = bits // 8

    if char != '' and bytes != 0:
        char = "%s%d" % (char, bytes)

    return base, bits, char
项目:PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda    作者:SignalMedia    | 项目源码 | 文件源码
def _set_up_aliases():
    type_pairs = [('complex_', 'cdouble'),
                  ('int0', 'intp'),
                  ('uint0', 'uintp'),
                  ('single', 'float'),
                  ('csingle', 'cfloat'),
                  ('singlecomplex', 'cfloat'),
                  ('float_', 'double'),
                  ('intc', 'int'),
                  ('uintc', 'uint'),
                  ('int_', 'long'),
                  ('uint', 'ulong'),
                  ('cfloat', 'cdouble'),
                  ('longfloat', 'longdouble'),
                  ('clongfloat', 'clongdouble'),
                  ('longcomplex', 'clongdouble'),
                  ('bool_', 'bool'),
                  ('unicode_', 'unicode'),
                  ('object_', 'object')]
    if sys.version_info[0] >= 3:
        type_pairs.extend([('bytes_', 'string'),
                           ('str_', 'unicode'),
                           ('string_', 'string')])
    else:
        type_pairs.extend([('str_', 'string'),
                           ('string_', 'string'),
                           ('bytes_', 'string')])
    for alias, t in type_pairs:
        allTypes[alias] = allTypes[t]
        sctypeDict[alias] = sctypeDict[t]
    # Remove aliases overriding python types and modules
    to_remove = ['ulong', 'object', 'unicode', 'int', 'long', 'float',
                 'complex', 'bool', 'string', 'datetime', 'timedelta']
    if sys.version_info[0] >= 3:
        # Py3K
        to_remove.append('bytes')
        to_remove.append('str')
        to_remove.remove('unicode')
        to_remove.remove('long')
    for t in to_remove:
        try:
            del allTypes[t]
            del sctypeDict[t]
        except KeyError:
            pass
项目:PyDataLondon29-EmbarrassinglyParallelDAWithAWSLambda    作者:SignalMedia    | 项目源码 | 文件源码
def issctype(rep):
    """
    Determines whether the given object represents a scalar data-type.

    Parameters
    ----------
    rep : any
        If `rep` is an instance of a scalar dtype, True is returned. If not,
        False is returned.

    Returns
    -------
    out : bool
        Boolean result of check whether `rep` is a scalar dtype.

    See Also
    --------
    issubsctype, issubdtype, obj2sctype, sctype2char

    Examples
    --------
    >>> np.issctype(np.int32)
    True
    >>> np.issctype(list)
    False
    >>> np.issctype(1.1)
    False

    Strings are also a scalar type:

    >>> np.issctype(np.dtype('str'))
    True

    """
    if not isinstance(rep, (type, dtype)):
        return False
    try:
        res = obj2sctype(rep)
        if res and res != object_:
            return True
        return False
    except:
        return False
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def bitname(obj):
    """Return a bit-width name for a given type object"""
    name = obj.__name__
    base = ''
    char = ''
    try:
        if name[-1] == '_':
            newname = name[:-1]
        else:
            newname = name
        info = typeinfo[english_upper(newname)]
        assert(info[-1] == obj)  # sanity check
        bits = info[2]

    except KeyError:     # bit-width name
        base, bits = _evalname(name)
        char = base[0]

    if name == 'bool_':
        char = 'b'
        base = 'bool'
    elif name == 'void':
        char = 'V'
        base = 'void'
    elif name == 'object_':
        char = 'O'
        base = 'object'
        bits = 0
    elif name == 'datetime64':
        char = 'M'
    elif name == 'timedelta64':
        char = 'm'

    if sys.version_info[0] >= 3:
        if name == 'bytes_':
            char = 'S'
            base = 'bytes'
        elif name == 'str_':
            char = 'U'
            base = 'str'
    else:
        if name == 'string_':
            char = 'S'
            base = 'string'
        elif name == 'unicode_':
            char = 'U'
            base = 'unicode'

    bytes = bits // 8

    if char != '' and bytes != 0:
        char = "%s%d" % (char, bytes)

    return base, bits, char
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def _set_up_aliases():
    type_pairs = [('complex_', 'cdouble'),
                  ('int0', 'intp'),
                  ('uint0', 'uintp'),
                  ('single', 'float'),
                  ('csingle', 'cfloat'),
                  ('singlecomplex', 'cfloat'),
                  ('float_', 'double'),
                  ('intc', 'int'),
                  ('uintc', 'uint'),
                  ('int_', 'long'),
                  ('uint', 'ulong'),
                  ('cfloat', 'cdouble'),
                  ('longfloat', 'longdouble'),
                  ('clongfloat', 'clongdouble'),
                  ('longcomplex', 'clongdouble'),
                  ('bool_', 'bool'),
                  ('unicode_', 'unicode'),
                  ('object_', 'object')]
    if sys.version_info[0] >= 3:
        type_pairs.extend([('bytes_', 'string'),
                           ('str_', 'unicode'),
                           ('string_', 'string')])
    else:
        type_pairs.extend([('str_', 'string'),
                           ('string_', 'string'),
                           ('bytes_', 'string')])
    for alias, t in type_pairs:
        allTypes[alias] = allTypes[t]
        sctypeDict[alias] = sctypeDict[t]
    # Remove aliases overriding python types and modules
    to_remove = ['ulong', 'object', 'unicode', 'int', 'long', 'float',
                 'complex', 'bool', 'string', 'datetime', 'timedelta']
    if sys.version_info[0] >= 3:
        # Py3K
        to_remove.append('bytes')
        to_remove.append('str')
        to_remove.remove('unicode')
        to_remove.remove('long')
    for t in to_remove:
        try:
            del allTypes[t]
            del sctypeDict[t]
        except KeyError:
            pass
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def issctype(rep):
    """
    Determines whether the given object represents a scalar data-type.

    Parameters
    ----------
    rep : any
        If `rep` is an instance of a scalar dtype, True is returned. If not,
        False is returned.

    Returns
    -------
    out : bool
        Boolean result of check whether `rep` is a scalar dtype.

    See Also
    --------
    issubsctype, issubdtype, obj2sctype, sctype2char

    Examples
    --------
    >>> np.issctype(np.int32)
    True
    >>> np.issctype(list)
    False
    >>> np.issctype(1.1)
    False

    Strings are also a scalar type:

    >>> np.issctype(np.dtype('str'))
    True

    """
    if not isinstance(rep, (type, dtype)):
        return False
    try:
        res = obj2sctype(rep)
        if res and res != object_:
            return True
        return False
    except:
        return False
项目:aws-lambda-numpy    作者:vitolimandibhrata    | 项目源码 | 文件源码
def update(self, func, default=None, testing_value=None,
               missing_values=asbytes(''), locked=False):
        """
        Set StringConverter attributes directly.

        Parameters
        ----------
        func : function
            Conversion function.
        default : any, optional
            Value to return by default, that is, when the string to be
            converted is flagged as missing. If not given,
            `StringConverter` tries to supply a reasonable default value.
        testing_value : str, optional
            A string representing a standard input value of the converter.
            This string is used to help defining a reasonable default
            value.
        missing_values : sequence of str, optional
            Sequence of strings indicating a missing value.
        locked : bool, optional
            Whether the StringConverter should be locked to prevent
            automatic upgrade or not. Default is False.

        Notes
        -----
        `update` takes the same parameters as the constructor of
        `StringConverter`, except that `func` does not accept a `dtype`
        whereas `dtype_or_func` in the constructor does.

        """
        self.func = func
        self._locked = locked
        # Don't reset the default to None if we can avoid it
        if default is not None:
            self.default = default
            self.type = self._dtypeortype(self._getdtype(default))
        else:
            try:
                tester = func(testing_value or asbytes('1'))
            except (TypeError, ValueError):
                tester = None
            self.type = self._dtypeortype(self._getdtype(tester))
        # Add the missing values to the existing set
        if missing_values is not None:
            if _is_bytes_like(missing_values):
                self.missing_values.add(missing_values)
            elif hasattr(missing_values, '__iter__'):
                for val in missing_values:
                    self.missing_values.add(val)
        else:
            self.missing_values = []
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def bitname(obj):
    """Return a bit-width name for a given type object"""
    name = obj.__name__
    base = ''
    char = ''
    try:
        if name[-1] == '_':
            newname = name[:-1]
        else:
            newname = name
        info = typeinfo[english_upper(newname)]
        assert(info[-1] == obj)  # sanity check
        bits = info[2]

    except KeyError:     # bit-width name
        base, bits = _evalname(name)
        char = base[0]

    if name == 'bool_':
        char = 'b'
        base = 'bool'
    elif name == 'void':
        char = 'V'
        base = 'void'
    elif name == 'object_':
        char = 'O'
        base = 'object'
        bits = 0
    elif name == 'datetime64':
        char = 'M'
    elif name == 'timedelta64':
        char = 'm'

    if sys.version_info[0] >= 3:
        if name == 'bytes_':
            char = 'S'
            base = 'bytes'
        elif name == 'str_':
            char = 'U'
            base = 'str'
    else:
        if name == 'string_':
            char = 'S'
            base = 'string'
        elif name == 'unicode_':
            char = 'U'
            base = 'unicode'

    bytes = bits // 8

    if char != '' and bytes != 0:
        char = "%s%d" % (char, bytes)

    return base, bits, char
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def _set_up_aliases():
    type_pairs = [('complex_', 'cdouble'),
                  ('int0', 'intp'),
                  ('uint0', 'uintp'),
                  ('single', 'float'),
                  ('csingle', 'cfloat'),
                  ('singlecomplex', 'cfloat'),
                  ('float_', 'double'),
                  ('intc', 'int'),
                  ('uintc', 'uint'),
                  ('int_', 'long'),
                  ('uint', 'ulong'),
                  ('cfloat', 'cdouble'),
                  ('longfloat', 'longdouble'),
                  ('clongfloat', 'clongdouble'),
                  ('longcomplex', 'clongdouble'),
                  ('bool_', 'bool'),
                  ('unicode_', 'unicode'),
                  ('object_', 'object')]
    if sys.version_info[0] >= 3:
        type_pairs.extend([('bytes_', 'string'),
                           ('str_', 'unicode'),
                           ('string_', 'string')])
    else:
        type_pairs.extend([('str_', 'string'),
                           ('string_', 'string'),
                           ('bytes_', 'string')])
    for alias, t in type_pairs:
        allTypes[alias] = allTypes[t]
        sctypeDict[alias] = sctypeDict[t]
    # Remove aliases overriding python types and modules
    to_remove = ['ulong', 'object', 'unicode', 'int', 'long', 'float',
                 'complex', 'bool', 'string', 'datetime', 'timedelta']
    if sys.version_info[0] >= 3:
        # Py3K
        to_remove.append('bytes')
        to_remove.append('str')
        to_remove.remove('unicode')
        to_remove.remove('long')
    for t in to_remove:
        try:
            del allTypes[t]
            del sctypeDict[t]
        except KeyError:
            pass
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def issctype(rep):
    """
    Determines whether the given object represents a scalar data-type.

    Parameters
    ----------
    rep : any
        If `rep` is an instance of a scalar dtype, True is returned. If not,
        False is returned.

    Returns
    -------
    out : bool
        Boolean result of check whether `rep` is a scalar dtype.

    See Also
    --------
    issubsctype, issubdtype, obj2sctype, sctype2char

    Examples
    --------
    >>> np.issctype(np.int32)
    True
    >>> np.issctype(list)
    False
    >>> np.issctype(1.1)
    False

    Strings are also a scalar type:

    >>> np.issctype(np.dtype('str'))
    True

    """
    if not isinstance(rep, (type, dtype)):
        return False
    try:
        res = obj2sctype(rep)
        if res and res != object_:
            return True
        return False
    except:
        return False
项目:lambda-numba    作者:rlhotovy    | 项目源码 | 文件源码
def update(self, func, default=None, testing_value=None,
               missing_values=asbytes(''), locked=False):
        """
        Set StringConverter attributes directly.

        Parameters
        ----------
        func : function
            Conversion function.
        default : any, optional
            Value to return by default, that is, when the string to be
            converted is flagged as missing. If not given,
            `StringConverter` tries to supply a reasonable default value.
        testing_value : str, optional
            A string representing a standard input value of the converter.
            This string is used to help defining a reasonable default
            value.
        missing_values : sequence of str, optional
            Sequence of strings indicating a missing value.
        locked : bool, optional
            Whether the StringConverter should be locked to prevent
            automatic upgrade or not. Default is False.

        Notes
        -----
        `update` takes the same parameters as the constructor of
        `StringConverter`, except that `func` does not accept a `dtype`
        whereas `dtype_or_func` in the constructor does.

        """
        self.func = func
        self._locked = locked
        # Don't reset the default to None if we can avoid it
        if default is not None:
            self.default = default
            self.type = self._dtypeortype(self._getdtype(default))
        else:
            try:
                tester = func(testing_value or asbytes('1'))
            except (TypeError, ValueError):
                tester = None
            self.type = self._dtypeortype(self._getdtype(tester))
        # Add the missing values to the existing set
        if missing_values is not None:
            if _is_bytes_like(missing_values):
                self.missing_values.add(missing_values)
            elif hasattr(missing_values, '__iter__'):
                for val in missing_values:
                    self.missing_values.add(val)
        else:
            self.missing_values = []
项目:deliver    作者:orchestor    | 项目源码 | 文件源码
def bitname(obj):
    """Return a bit-width name for a given type object"""
    name = obj.__name__
    base = ''
    char = ''
    try:
        if name[-1] == '_':
            newname = name[:-1]
        else:
            newname = name
        info = typeinfo[english_upper(newname)]
        assert(info[-1] == obj)  # sanity check
        bits = info[2]

    except KeyError:     # bit-width name
        base, bits = _evalname(name)
        char = base[0]

    if name == 'bool_':
        char = 'b'
        base = 'bool'
    elif name == 'void':
        char = 'V'
        base = 'void'
    elif name == 'object_':
        char = 'O'
        base = 'object'
        bits = 0
    elif name == 'datetime64':
        char = 'M'
    elif name == 'timedelta64':
        char = 'm'

    if sys.version_info[0] >= 3:
        if name == 'bytes_':
            char = 'S'
            base = 'bytes'
        elif name == 'str_':
            char = 'U'
            base = 'str'
    else:
        if name == 'string_':
            char = 'S'
            base = 'string'
        elif name == 'unicode_':
            char = 'U'
            base = 'unicode'

    bytes = bits // 8

    if char != '' and bytes != 0:
        char = "%s%d" % (char, bytes)

    return base, bits, char