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This module encapsulates the interface provided by the internal special
attributes (co_*, im_*, tb_*, etc.) in a friendlier fashion.
It also provides some help for examining source code and class layout.
Here are some of the useful functions provided by this module:
ismodule(), isclass(), ismethod(), isfunction(), isgeneratorfunction(),
isgenerator(), istraceback(), isframe(), iscode(), isbuiltin(),
isroutine() - check object types
getmembers() - get members of an object that satisfy a given condition
getfile(), getsourcefile(), getsource() - find an object's source code
getdoc(), getcomments() - get documentation on an object
getmodule() - determine the module that an object came from
getclasstree() - arrange classes so as to represent their hierarchy
getargvalues(), getcallargs() - get info about function arguments
getfullargspec() - same, with support for Python 3 features
formatargvalues() - format an argument spec
getouterframes(), getinnerframes() - get info about frames
currentframe() - get the current stack frame
stack(), trace() - get info about frames on the stack or in a traceback
signature() - get a Signature object for the callable
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Instance method objects provide these attributes:
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__name__ name with which this method was defined
__func__ function object containing implementation of method
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�ismethodP s r c C s: t | �st| �st| �r dS t| �}t|d�o8t|d� S )a� Return true if the object is a method descriptor.
But not if ismethod() or isclass() or isfunction() are true.
This is new in Python 2.2, and, for example, is true of int.__add__.
An object passing this test has a __get__ attribute but not a __set__
attribute, but beyond that the set of attributes varies. __name__ is
usually sensible, and __doc__ often is.
Methods implemented via descriptors that also pass one of the other
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�ismethoddescriptorZ s r c C s8 t | �st| �st| �r dS t| �}t|d�o6t|d�S )a� Return true if the object is a data descriptor.
Data descriptors have both a __get__ and a __set__ attribute. Examples are
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�isdatadescriptorn s r �MemberDescriptorTypec C s t | tj�S )z�Return true if the object is a member descriptor.
Member descriptors are specialized descriptors defined in extension
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�ismemberdescriptor~ s r c C s dS )z�Return true if the object is a member descriptor.
Member descriptors are specialized descriptors defined in extension
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getset descriptors are specialized descriptors defined in extension
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�isgetsetdescriptor� s r c C s dS )z�Return true if the object is a getset descriptor.
getset descriptors are specialized descriptors defined in extension
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Function objects provide these attributes:
__doc__ documentation string
__name__ name with which this function was defined
__code__ code object containing compiled function bytecode
__defaults__ tuple of any default values for arguments
__globals__ global namespace in which this function was defined
__annotations__ dict of parameter annotations
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Generator function objects provide the same attributes as functions.
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�isgeneratorfunction� s r c C s t t| �st| �o | jjt@ �S )zuReturn true if the object is a coroutine function.
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Generator objects provide these attributes:
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close raises a new GeneratorExit exception inside the
generator to terminate the iteration
gi_code code object
gi_frame frame object or possibly None once the generator has
been exhausted
gi_running set to 1 when generator is executing, 0 otherwise
next return the next item from the container
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Traceback objects provide these attributes:
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� istraceback� s r. c C s t | tj�S )a` Return true if the object is a frame object.
Frame objects provide these attributes:
f_back next outer frame object (this frame's caller)
f_builtins built-in namespace seen by this frame
f_code code object being executed in this frame
f_globals global namespace seen by this frame
f_lasti index of last attempted instruction in bytecode
f_lineno current line number in Python source code
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�isframe� s r0 c C s t | tj�S )aE Return true if the object is a code object.
Code objects provide these attributes:
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co_code string of raw compiled bytecode
co_cellvars tuple of names of cell variables
co_consts tuple of constants used in the bytecode
co_filename name of file in which this code object was created
co_firstlineno number of first line in Python source code
co_flags bitmap: 1=optimized | 2=newlocals | 4=*arg | 8=**arg
| 16=nested | 32=generator | 64=nofree | 128=coroutine
| 256=iterable_coroutine | 512=async_generator
co_freevars tuple of names of free variables
co_kwonlyargcount number of keyword only arguments (not including ** arg)
co_lnotab encoded mapping of line numbers to bytecode indices
co_name name with which this code object was defined
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�iscode� s r2 c C s t | tj�S )a, Return true if the object is a built-in function or method.
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� isbuiltin s r4 c C s t | �p t| �p t| �p t| �S )z<Return true if the object is any kind of function or method.)r4 r r r )r r r r
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�| � q�W | S ) aN Return list of attribute-descriptor tuples.
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'class method' created via classmethod()
'static method' created via staticmethod()
'property' created via property()
'method' any other flavor of method or descriptor
'data' not a method
2. The class which defined this attribute (a class).
3. The object as obtained by calling getattr; if this fails, or if the
resulting object does not live anywhere in the class' mro (including
metaclasses) then the object is looked up in the defining class's
dict (found by walking the mro).
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the callback returns a true value. If the callback never returns a true
value, the last object in the chain is returned as usual. For example,
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