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inspect.istraceback()。
def test_excluding_predicates(self): self.istest(inspect.isbuiltin, 'sys.exit') if check_impl_detail(): self.istest(inspect.isbuiltin, '[].append') self.istest(inspect.iscode, 'mod.spam.__code__') self.istest(inspect.isframe, 'tb.tb_frame') self.istest(inspect.isfunction, 'mod.spam') self.istest(inspect.isfunction, 'mod.StupidGit.abuse') self.istest(inspect.ismethod, 'git.argue') self.istest(inspect.ismodule, 'mod') self.istest(inspect.istraceback, 'tb') self.istest(inspect.isdatadescriptor, 'collections.defaultdict.default_factory') self.istest(inspect.isgenerator, '(x for x in range(2))') self.istest(inspect.isgeneratorfunction, 'generator_function_example') if hasattr(types, 'GetSetDescriptorType'): self.istest(inspect.isgetsetdescriptor, 'type(tb.tb_frame).f_locals') else: self.assertFalse(inspect.isgetsetdescriptor(type(tb.tb_frame).f_locals)) if hasattr(types, 'MemberDescriptorType'): self.istest(inspect.ismemberdescriptor, 'type(lambda: None).__globals__') else: self.assertFalse(inspect.ismemberdescriptor(datetime.timedelta.days))
def test_excluding_predicates(self): self.istest(inspect.isbuiltin, 'sys.exit') self.istest(inspect.isbuiltin, '[].append') self.istest(inspect.iscode, 'mod.spam.func_code') self.istest(inspect.isframe, 'tb.tb_frame') self.istest(inspect.isfunction, 'mod.spam') self.istest(inspect.ismethod, 'mod.StupidGit.abuse') self.istest(inspect.ismethod, 'git.argue') self.istest(inspect.ismodule, 'mod') self.istest(inspect.istraceback, 'tb') self.istest(inspect.isdatadescriptor, '__builtin__.file.closed') self.istest(inspect.isdatadescriptor, '__builtin__.file.softspace') self.istest(inspect.isgenerator, '(x for x in xrange(2))') self.istest(inspect.isgeneratorfunction, 'generator_function_example') if hasattr(types, 'GetSetDescriptorType'): self.istest(inspect.isgetsetdescriptor, 'type(tb.tb_frame).f_locals') else: self.assertFalse(inspect.isgetsetdescriptor(type(tb.tb_frame).f_locals)) if hasattr(types, 'MemberDescriptorType'): self.istest(inspect.ismemberdescriptor, 'datetime.timedelta.days') else: self.assertFalse(inspect.ismemberdescriptor(datetime.timedelta.days))
def test_excluding_predicates(self): self.istest(inspect.isbuiltin, 'sys.exit') if check_impl_detail(): self.istest(inspect.isbuiltin, '[].append') self.istest(inspect.iscode, 'mod.spam.func_code') self.istest(inspect.isframe, 'tb.tb_frame') self.istest(inspect.isfunction, 'mod.spam') self.istest(inspect.ismethod, 'mod.StupidGit.abuse') self.istest(inspect.ismethod, 'git.argue') self.istest(inspect.ismodule, 'mod') self.istest(inspect.istraceback, 'tb') self.istest(inspect.isdatadescriptor, '__builtin__.file.closed') self.istest(inspect.isdatadescriptor, '__builtin__.file.softspace') self.istest(inspect.isgenerator, '(x for x in xrange(2))') self.istest(inspect.isgeneratorfunction, 'generator_function_example') if hasattr(types, 'GetSetDescriptorType'): self.istest(inspect.isgetsetdescriptor, 'type(tb.tb_frame).f_locals') else: self.assertFalse(inspect.isgetsetdescriptor(type(tb.tb_frame).f_locals)) if hasattr(types, 'MemberDescriptorType'): self.istest(inspect.ismemberdescriptor, 'type(lambda: None).func_globals') else: self.assertFalse(inspect.ismemberdescriptor(type(lambda: None).func_globals))
def _default_json_handler(self, obj): """Format given abject into json formatted string""" if isinstance(obj, datetime.datetime): if obj.year < 1900: # strftime do not work with date < 1900 return constants.CLOUDSEARCH_DATETIME_CREATION_FORMAT % ( obj.year, obj.month, obj.day, obj.hour, obj.minute, obj.second) return obj.strftime(self.datefmt) elif isinstance(obj, datetime.date): return obj.isoformat() elif isinstance(obj, datetime.time): return obj.strftime(constants.CLOUDSEARCH_TIME_FORMAT) elif istraceback(obj): _traceback = ''.join(traceback.format_tb(obj)) return _traceback.strip() elif isinstance(obj, Exception): return "Exception: %s" % str(obj) return str(obj)
def isdata(object): """Check if an object is of a type that probably means it's data.""" return not (inspect.ismodule(object) or inspect.isclass(object) or inspect.isroutine(object) or inspect.isframe(object) or inspect.istraceback(object) or inspect.iscode(object))
def test_abuse_done(self): self.istest(inspect.istraceback, 'git.ex[2]') self.istest(inspect.isframe, 'mod.fr')
def test_excluding_predicates(self): global tb self.istest(inspect.isbuiltin, 'sys.exit') self.istest(inspect.isbuiltin, '[].append') self.istest(inspect.iscode, 'mod.spam.__code__') try: 1/0 except: tb = sys.exc_info()[2] self.istest(inspect.isframe, 'tb.tb_frame') self.istest(inspect.istraceback, 'tb') if hasattr(types, 'GetSetDescriptorType'): self.istest(inspect.isgetsetdescriptor, 'type(tb.tb_frame).f_locals') else: self.assertFalse(inspect.isgetsetdescriptor(type(tb.tb_frame).f_locals)) finally: # Clear traceback and all the frames and local variables hanging to it. tb = None self.istest(inspect.isfunction, 'mod.spam') self.istest(inspect.isfunction, 'mod.StupidGit.abuse') self.istest(inspect.ismethod, 'git.argue') self.istest(inspect.ismodule, 'mod') self.istest(inspect.isdatadescriptor, 'collections.defaultdict.default_factory') self.istest(inspect.isgenerator, '(x for x in range(2))') self.istest(inspect.isgeneratorfunction, 'generator_function_example') if hasattr(types, 'MemberDescriptorType'): self.istest(inspect.ismemberdescriptor, 'datetime.timedelta.days') else: self.assertFalse(inspect.ismemberdescriptor(datetime.timedelta.days))
def _get_object_to_check(python_object): """Check if inspect.getfile has a chance to find the source.""" if (inspect.ismodule(python_object) or inspect.isclass(python_object) or inspect.ismethod(python_object) or inspect.isfunction(python_object) or inspect.istraceback(python_object) or inspect.isframe(python_object) or inspect.iscode(python_object)): return python_object try: return python_object.__class__ except AttributeError: raise TypeError # Prevents computation of `repr` within inspect.
def _find_lineno(self, obj, source_lines): """ Return a line number of the given object's docstring. Note: this method assumes that the object has a docstring. """ lineno = None # Find the line number for modules. if inspect.ismodule(obj): lineno = 0 # Find the line number for classes. # Note: this could be fooled if a class is defined multiple # times in a single file. if inspect.isclass(obj): if source_lines is None: return None pat = re.compile(r'^\s*class\s*%s\b' % getattr(obj, '__name__', '-')) for i, line in enumerate(source_lines): if pat.match(line): lineno = i break # Find the line number for functions & methods. if inspect.ismethod(obj): obj = obj.im_func if inspect.isfunction(obj): obj = obj.func_code if inspect.istraceback(obj): obj = obj.tb_frame if inspect.isframe(obj): obj = obj.f_code if inspect.iscode(obj): lineno = getattr(obj, 'co_firstlineno', None)-1 # Find the line number where the docstring starts. Assume # that it's the first line that begins with a quote mark. # Note: this could be fooled by a multiline function # signature, where a continuation line begins with a quote # mark. if lineno is not None: if source_lines is None: return lineno+1 pat = re.compile('(^|.*:)\s*\w*("|\')') for lineno in range(lineno, len(source_lines)): if pat.match(source_lines[lineno]): return lineno # We couldn't find the line number. return None ###################################################################### ## 5. DocTest Runner ######################################################################
def _find_lineno(self, obj, source_lines): """ Return a line number of the given object's docstring. Note: this method assumes that the object has a docstring. """ lineno = None # Find the line number for modules. if inspect.ismodule(obj): lineno = 0 # Find the line number for classes. # Note: this could be fooled if a class is defined multiple # times in a single file. if inspect.isclass(obj): if source_lines is None: return None pat = re.compile(r'^\s*class\s*%s\b' % getattr(obj, '__name__', '-')) for i, line in enumerate(source_lines): if pat.match(line): lineno = i break # Find the line number for functions & methods. if inspect.ismethod(obj): obj = im_func(obj) if inspect.isfunction(obj): obj = func_code(obj) if inspect.istraceback(obj): obj = obj.tb_frame if inspect.isframe(obj): obj = obj.f_code if inspect.iscode(obj): lineno = getattr(obj, 'co_firstlineno', None)-1 # Find the line number where the docstring starts. Assume # that it's the first line that begins with a quote mark. # Note: this could be fooled by a multiline function # signature, where a continuation line begins with a quote # mark. if lineno is not None: if source_lines is None: return lineno+1 pat = re.compile('(^|.*:)\s*\w*("|\')') for lineno in range(lineno, len(source_lines)): if pat.match(source_lines[lineno]): return lineno # We couldn't find the line number. return None ###################################################################### ## 5. DocTest Runner ######################################################################
def _find_lineno(self, obj, source_lines): """ Return a line number of the given object's docstring. Note: this method assumes that the object has a docstring. """ lineno = None # Find the line number for modules. if inspect.ismodule(obj): lineno = 0 # Find the line number for classes. # Note: this could be fooled if a class is defined multiple # times in a single file. if inspect.isclass(obj): if source_lines is None: return None pat = re.compile(r'^\s*class\s*%s\b' % getattr(obj, '__name__', '-')) for i, line in enumerate(source_lines): if pat.match(line): lineno = i break # Find the line number for functions & methods. if inspect.ismethod(obj): obj = obj.__func__ if inspect.isfunction(obj): obj = obj.__code__ if inspect.istraceback(obj): obj = obj.tb_frame if inspect.isframe(obj): obj = obj.f_code if inspect.iscode(obj): lineno = getattr(obj, 'co_firstlineno', None)-1 # Find the line number where the docstring starts. Assume # that it's the first line that begins with a quote mark. # Note: this could be fooled by a multiline function # signature, where a continuation line begins with a quote # mark. if lineno is not None: if source_lines is None: return lineno+1 pat = re.compile('(^|.*:)\s*\w*("|\')') for lineno in range(lineno, len(source_lines)): if pat.match(source_lines[lineno]): return lineno # We couldn't find the line number. return None ###################################################################### ## 5. DocTest Runner ######################################################################
def do_find(f, mod): import linecache if inspect.ismodule(mod): return f, 0, 0 lines = linecache.getlines(f) if inspect.isclass(mod): name = mod.__name__ pat = re.compile(r'^\s*class\s*' + name + r'\b') for i in xrange(len(lines)): if pat.match(lines[i]): return f, i, 0 return f, 0, 0 if inspect.ismethod(mod): mod = mod.im_func if inspect.isfunction(mod): try: mod = mod.func_code except AttributeError: mod = mod.__code__ #python 3k if inspect.istraceback(mod): mod = mod.tb_frame if inspect.isframe(mod): mod = mod.f_code if inspect.iscode(mod): if not hasattr(mod, 'co_filename'): return None, 0, 0 if not hasattr(mod, 'co_firstlineno'): return mod.co_filename, 0, 0 lnum = mod.co_firstlineno pat = re.compile(r'^(\s*def\s)|(.*(?<!\w)lambda(:|\s))|^(\s*@)') while lnum > 0: if pat.match(lines[lnum]): break lnum -= 1 return f, lnum, 0 raise RuntimeError('Do not know about: ' + f + ' ' + str(mod))
