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d f \ Z Z Z Yn5 Xe Z! x( e j" D] \ Z# Z$ e# e! d e$ Z% d d Z& d d Z' d d Z( d d Z) d d Z* e+ e d rd d Z, n d d Z, e+ e d rd d! Z- n d" d! Z- d# d$ Z. d% d& Z/ d' d( Z0 d) d* Z1 d+ d, Z2 d- d. Z3 d/ d0 Z4 d1 d2 Z5 d3 d4 Z6 d d5 d6 Z7 e d7 d8 Z8 d9 d: Z9 d; d< Z: d= d d> d? Z; d@ dA Z< dB dC Z= dD dE Z> dF dG Z? e dH dI Z@ dJ dK ZA dL dM ZB dN dO ZC d dP dQ ZD i ZE i ZF d dR dS ZG dT dU ZH dV dW ZI GdX dY dY eJ ZK GdZ d[ d[ ZL d\ d] ZM d^ d_ ZN d` da ZO db dc ZP dd de df ZQ e dg dh ZR di dj ZS dk dl ZT e dm dn ZU do dp ZV e dq dr ZW ds dt ZX e du dv ZY dw dx ZZ d dy dz Z[ d{ d| Z\ d d d f i i e] d} d~ d d~ d d~ d d~ e[ d d Z^ e] d d~ d d~ d d~ d d Z_ d d Z` d d Za d d Zb e d d Zc d d Zd e d d Ze d d d Zf d d Zg d d d Zh d d d Zi d d Zj d d d Zk d d d Zl em Zn d d Zo d d Zp d d Zq d d Zr d d Zs en d d Zt d Zu d Zv d Zw d Zx d d Zy d d Zz e{ e{ j| Z} e{ e~ j| Z e{ e j d Z e} e e e j f Z d d Z f d d Z d d Z d d Z d d Z d d Z d d Z d d d Z d d d Z d d d d Z d d Z Gd d d Z Gd d d Z Gd d d e Z e d d d Z e d d d Z e d d d Z e d d d Z e d
d d Z Gd d d Z Gd d d Z Gd d d Z d d Z e d k re n d S)a( Get useful information from live Python objects.
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
getargspec(), getargvalues(), getcallargs() - get info about function arguments
getfullargspec() - same, with support for Python-3000 features
formatargspec(), 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
zKa-Ping Yee z'Yury Selivanov N)
attrgetter)
namedtuple OrderedDict)COMPILER_FLAG_NAMES @ ZCO_ c C s t | t j S)zReturn true if the object is a module.
Module objects provide these attributes:
__cached__ pathname to byte compiled file
__doc__ documentation string
__file__ filename (missing for built-in modules))
isinstancetypes
ModuleType)object r ,/opt/alt/python34/lib64/python3.4/inspect.pyismoduleD s r c C s
t | t S)zReturn true if the object is a class.
Class objects provide these attributes:
__doc__ documentation string
__module__ name of module in which this class was defined)r type)r r r r isclassM s r c C s t | t j S)a_ Return true if the object is an instance method.
Instance method objects provide these attributes:
__doc__ documentation string
__name__ name with which this method was defined
__func__ function object containing implementation of method
__self__ instance to which this method is bound)r r
MethodType)r r r r ismethodU s r c C sQ t | s$ t | s$ t | r( d St | } t | d oP t | 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
tests return false from the ismethoddescriptor() test, simply because
the other tests promise more -- you can, e.g., count on having the
__func__ attribute (etc) when an object passes ismethod().F__get____set__)r r
isfunctionr hasattr)r tpr r r ismethoddescriptor_ s $ r c C sP t | s$ t | s$ t | r( d St | } t | d oO t | d S)a Return true if the object is a data descriptor.
Data descriptors have both a __get__ and a __set__ attribute. Examples are
properties (defined in Python) and getsets and members (defined in C).
Typically, data descriptors will also have __name__ and __doc__ attributes
(properties, getsets, and members have both of these attributes), but this
is not guaranteed.Fr r )r r r r r )r r r r r isdatadescriptors s $ r MemberDescriptorTypec C s t | t j S)zReturn true if the object is a member descriptor.
Member descriptors are specialized descriptors defined in extension
modules.)r r r )r r r r ismemberdescriptor s r! c C s d S)zReturn true if the object is a member descriptor.
Member descriptors are specialized descriptors defined in extension
modules.Fr )r r r r r! s GetSetDescriptorTypec C s t | t j S)zReturn true if the object is a getset descriptor.
getset descriptors are specialized descriptors defined in extension
modules.)r r r" )r r r r isgetsetdescriptor s r# c C s d S)zReturn true if the object is a getset descriptor.
getset descriptors are specialized descriptors defined in extension
modules.Fr )r r r r r# s c C s t | t j S)a( Return true if the object is a user-defined function.
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
__kwdefaults__ dict of keyword only parameters with defaults)r r FunctionType)r r r r r s r c C s, t t | s t | o( | j j t @ S)zReturn true if the object is a user-defined generator function.
Generator function objects provides same attributes as functions.
See help(isfunction) for attributes listing.)boolr r __code__co_flags CO_GENERATOR)r r r r isgeneratorfunction s r) c C s t | t j S)a Return true if the object is a generator.
Generator objects provide these attributes:
__iter__ defined to support iteration over container
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
send resumes the generator and "sends" a value that becomes
the result of the current yield-expression
throw used to raise an exception inside the generator)r r
GeneratorType)r r r r isgenerator s r+ c C s t | t j S)ab Return true if the object is a traceback.
Traceback objects provide these attributes:
tb_frame frame object at this level
tb_lasti index of last attempted instruction in bytecode
tb_lineno current line number in Python source code
tb_next next inner traceback object (called by this level))r r
TracebackType)r r r r istraceback s r- c C s t | t j 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
f_locals local namespace seen by this frame
f_trace tracing function for this frame, or None)r r FrameType)r r r r isframe s r/ c C s t | t j S)au Return true if the object is a code object.
Code objects provide these attributes:
co_argcount number of arguments (not including * or ** args)
co_code string of raw compiled bytecode
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
co_lnotab encoded mapping of line numbers to bytecode indices
co_name name with which this code object was defined
co_names tuple of names of local variables
co_nlocals number of local variables
co_stacksize virtual machine stack space required
co_varnames tuple of names of arguments and local variables)r r CodeType)r r r r iscode s r1 c C s t | t j S)a, Return true if the object is a built-in function or method.
Built-in functions and methods provide these attributes:
__doc__ documentation string
__name__ original name of this function or method
__self__ instance to which a method is bound, or None)r r BuiltinFunctionType)r r r r isbuiltin s r3 c C s. t | p- t | p- t | p- t | S)z1 s z getmembers..)r getmrosetdir __bases____dict__itemsr r DynamicClassAttributeappendAttributeErrorgetattraddsort) r Z predicatemroresults processednamesbasekvr8 valuer r r
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rN Attributez name kind defining_class objectc C s$ t | } t t | } t d d | D } | f | } | | } t | } xP | D]H } x? | j j D]. \ } } t | t j rw | j | qw qw Wqa Wg } t
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n | } t | t rd } | } nW t | t rd } | } n9 t | t rd } | } n t | rd
} n d } | j t | | | | |
j | q W| S) aN Return list of attribute-descriptor tuples.
For each name in dir(cls), the return list contains a 4-tuple
with these elements:
0. The name (a string).
1. The kind of attribute this is, one of these strings:
'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).
If one of the items in dir(cls) is stored in the metaclass it will now
be discovered and not have None be listed as the class in which it was
defined. Any items whose home class cannot be discovered are skipped.
c S s( g | ] } | t t f k r | q Sr )r r ).0clsr r r
S s z(classify_class_attrs..Nr> z)__dict__ is special, don't want the proxy __objclass__z
static methodz class methodpropertymethoddata)r: r tupler< r> r? r r r@ rA r; ExceptionrC __getattr__rB staticmethod classmethodrT r4 rO rD )rQ rF ZmetamroZ class_basesZ all_basesrI rJ rK rL resultrH nameZhomeclsZget_objZdict_objexcZlast_clsZsrch_clsZsrch_objobjkindr r r classify_class_attrs6 s
ra c C s | j S)zHReturn tuple of base classes (including cls) in method resolution order.)__mro__)rQ r r r r: s r: stopc s d k r d d } n f d d } | } t | h } xV | | r | j } t | } | | k r t d j | n | j | qE W| S)an Get the object wrapped by *func*.
Follows the chain of :attr:`__wrapped__` attributes returning the last
object in the chain.
*stop* is an optional callback accepting an object in the wrapper chain
as its sole argument that allows the unwrapping to be terminated early if
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,
:func:`signature` uses this to stop unwrapping if any object in the
chain has a ``__signature__`` attribute defined.
:exc:`ValueError` is raised if a cycle is encountered.
Nc S s
t | d S)N __wrapped__)r )fr r r _is_wrapper s zunwrap.._is_wrapperc s t | d o | S)Nrd )r )re )rc r r rf s z!wrapper loop when unwrapping {!r})idrd
ValueErrorformatrD )funcrc rf re memoZid_funcr )rc r unwrap s rl c C s& | j } t | t | j S)zBReturn the indent size, in spaces, at the start of a line of text.)
expandtabslenlstrip)lineZexpliner r r
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r% d SYn Xt | t s9 d St | S)zGet the documentation string for an object.
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indented to line up with blocks of code, any whitespace than can be
uniformly removed from the second line onwards is removed.N)__doc__rB r strcleandoc)r docr r r getdoc s
rv c C sO y | j j d } Wn t k
r1 d SYnXt j } xR | d d D]@ } t | j } | rL t | | } t | | } qL qL W| r | d j | d .)
warningswarnDeprecationWarningcatch_warnings simplefilterPendingDeprecationWarningimpospathbasenameZ get_suffixesrE r )r r filenamesuffixesneglenr r r r r r
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r c C sp t j j | } d d t j j D } | j x1 | D]) \ } } | j | r? | d | Sq? Wd S)z1Return the module name for a given file, or None.c S s# g | ] } t | | f q Sr )rn )rP r r r r rR / s z!getmodulename..N)r r r importlib machinery all_suffixesrE endswith)r Zfnamer r r r r r
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r c s t | t j j d d } | t j j d d 7} t f d d | D r t j j d t j j d n) t f d d t j j
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| d d d k r S t j k r Sd S)zReturn the filename that can be used to locate an object's source.
Return None if no way can be identified to get the source.
Nc 3 s | ] } j | Vq d S)N)r )rP s)r r r > s z getsourcefile..r c 3 s | ] } j | Vq d S)N)r )rP r )r r r r A s
__loader__)r r r DEBUG_BYTECODE_SUFFIXESOPTIMIZED_BYTECODE_SUFFIXESanyr r splitextSOURCE_SUFFIXESEXTENSION_SUFFIXESexistsrC getmodule linecachecache)r Zall_bytecode_suffixesr )r r
getsourcefile7 s !r c C sC | d k r' t | p! t | } n t j j t j j | S)zReturn an absolute path to the source or compiled file for an object.
The idea is for each object to have a unique origin, so this routine
normalizes the result as much as possible.N)r r r r normcaseabspath)r _filenamer r r
getabsfileM s r c
C s t | r | St | d r2 t j j | j S| d k r^ | t k r^ t j j t | Sy t | | } Wn t k
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D] \ } } t | r t | d r | j } | t j | d k rq n | t | zsource code not availablezcould not get source coder z^(\s*)class\s*z\bcr z could not find class definitionco_firstlinenoz"could not find function definitionz+^(\s*def\s)|(.*(? r r r recompiler~ rn matchrA grouprE r r r r& r- r r/ r r1 r r )
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r c C s y t | \ } } Wn t t f k
r4 d SYn Xt | rEd } | rp | d d d d k rp d } n x6 | t | k r | | j d k r | d } qs W| t | k r| | d d d k rg } | } xQ | t | k r4| | d d d k r4| j | | j | d } q Wd j | Sn| d k rt | | } | d } | d k r| | j
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} xv | d d d k rgt | | | k rg| g | d d <| d } | d k rNPn | | j j
} qWn x0 | r| d j d k rg | d d s r c C sv g } | j d t d d xP | D]H } | j | | j f | | k r& | j t | | | | q& q& W| S)z-Recursive helper function for getclasstree().r8 r r )rE r rA r= walktree)classeschildrenparentrG r r r r r H s
$r Fc C s i } g } x | D] } | j r x | j D]Y } | | k rK g | | ._formatannotation)rC )r r* r )r r formatannotationrelativeto s r+ c C s d | S)N*r )r] r r r r9 # s r9 c C s d | S)Nz**r )r] r r r r9 $ s c C s d t | S)N=)r( )rM r r r r9 % s c C s d | S)Nz -> r )textr r r r9 & s c
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g } | r= t | t | } n x` t | D]R \ } } |
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| | 7} n | j | q Wn | d k rb| j | |
| n d d j | d } d k r| | d 7} n | S) a Format an argument spec from the values returned by getargspec
or getfullargspec.
The first seven arguments are (args, varargs, varkw, defaults,
kwonlyargs, kwonlydefaults, annotations). The other five arguments
are the corresponding optional formatting functions that are called to
turn names and values into strings. The last argument is an optional
function to format the sequence of arguments.c s7 | } | k r3 | d | 7} n | S)Nz: r )argr\ )r r) formatargr r formatargandannotation0 s z-formatargspec..formatargandannotationNr, (z, )r )rn enumeraterA r )r r r r
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formatvarargs formatvarkw formatvalueZ
formatreturnsr) r1 specsZ firstdefaultr r/ specZ kwonlyargr\ r )r r) r0 r
formatargspec s2
r: c C s d | S)Nr, r )r] r r r r9 Q s c C s d | S)Nz**r )r] r r r r9 R s c C s d t | S)Nr- )r( )rM r r r r9 S s c C s | | | d d } g } x1 t t | D] }
| j | | |
q. W| ry | j | | | | | n | r | j | | | | | n d d j | d S)af Format an argument spec from the 4 values returned by getargvalues.
The first four arguments are (args, varargs, varkw, locals). The
next four arguments are the corresponding optional formatting functions
that are called to turn names and values into strings. The ninth
argument is an optional function to format the sequence of arguments.c S s | | | | | S)Nr )r] localsr0 r7 r r r convertZ s z formatargvalues..convertr2 z, r3 )r~ rn rA r ) r r r r; r0 r5 r6 r7 r< r8 r r r r formatargvaluesO s $$r= c s f d d | D } t | } | d k r> | d } nW | d k r\ d j | } n9 d j | d d } | d d =d j | | } t d | | | r d
n d | d k r d n d
| f d S)Nc s( g | ] } | k r t | q Sr )r( )rP r] )r r r rR g s z&_missing_arguments..r r r z {} and {}z , {} and {}z, z*%s() missing %i required %s argument%s: %s
positionalz keyword-onlyr r r? )rn ri r r )f_nameZargnamesposr rI missingr tailr )r r _missing_argumentsf s
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Nc s" g | ] } | k r | q Sr r )rP r/ )r r r rR x s z _too_many..r z at least %dTz
from %d to %dr z7 positional argument%s (and %d keyword-only argument%s)r z5%s() takes %s positional argument%s but %d%s %s givenZwasZwere)rn rs r )
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rK ClosureVarsz"nonlocals globals builtins unboundc C s^ t | r | j } n t | s< t d j | n | j } | j d k r] i } n" d d t | j | j D } | j } | j
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| r | j } n i } i } t } x~ | j D]s } | d k r q n y | | | | s z"getclosurevars.. __builtins__NoneTrueFalse)zNonezTruezFalse)r r r r ri r& __closure__zip co_freevars __globals__r r r> r r; co_namesKeyErrorrD rL ) rj codeZ
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r[ Tracebackz+filename lineno function code_context indexc C s5 t | r! | j } | j } n | j } t | sN t d j | n t | pc t | } | d k r| d | d } y t | \ } } Wn t
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r d } } YqXt | d } t d t | t
| | } | | | | } | d | } n
d } } t | | | j j | | S)a Get information about a frame or traceback object.
A tuple of five things is returned: the filename, the line number of
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to return, which are centered around the current line.z'{!r} is not a frame or traceback objectr r r N)r- tb_linenor f_linenor/ r ri r r r r maxr} rn r\ r co_name)r% contextlinenor r r r indexr r r getframeinfo s&
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rd c C s | j S)zCGet the line number from a frame object, allowing for optimization.)r^ )r% r r r getlineno# s re c C s= g } x0 | r8 | j | f t | | | j } q W| S)zGet a list of records for a frame and all higher (calling) frames.
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name, a list of lines of context, and index within the context.)rA rd f_back)r% ra framelistr r r getouterframes( s
rh c C s@ g } x3 | r; | j | j f t | | | j } q W| S)zGet a list of records for a traceback's frame and all lower frames.
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name, a list of lines of context, and index within the context.)rA r rd tb_next)tbra rg r r r getinnerframes3 s
rk c C s t t d r t j d Sd S)z?Return the frame of the caller or None if this is not possible. _getframer N)r r{ rl r r r r currentframe> s rm c C s t t j d | S)z@Return a list of records for the stack above the caller's frame.r )rh r{ rl )ra r r r stackB s rn c C s t t j d | S)zCReturn a list of records for the stack below the current exception.r )rk r{ exc_info)ra r r r traceF s rp c C s t j d j | S)Nrb )r r> r )klassr r r _static_getmroO s rr c C sD i } y t j | d } Wn t k
r0 Yn Xt j | | t S)Nr> )r __getattribute__rB dictr _sentinel)r_ attrZ
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rx c C su t } t | s` t | } t | } | t k sK t | t j k rf t | | } qf n | } t | | } | t k r | t k r t t | d t k r t t | d t k r | Sn | t k r | S| t k r | S| | k rUx\ t t | D]E } t t | t k r y | j | SWqNt
k
rJYqNXq q Wn | t k re| St | d S)a Retrieve attributes without triggering dynamic lookup via the
descriptor protocol, __getattr__ or __getattribute__.
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that getattr can fetch (like dynamically created attributes)
and may find attributes that getattr can't (like descriptors
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instead of instance members in some cases. See the
documentation for details.
r r N) ru r{ r rx r r rw rz rr r> rY rB )r_ rv r Zinstance_resultrq r| Z klass_resultry r r r getattr_staticy s6
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GEN_SUSPENDED
GEN_CLOSEDc C s: | j r
t S| j d k r t S| j j d k r6 t St S)a# Get current state of a generator-iterator.
Possible states are:
GEN_CREATED: Waiting to start execution.
GEN_RUNNING: Currently being executed by the interpreter.
GEN_SUSPENDED: Currently suspended at a yield expression.
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Z e d d Z e d d Z d e d e d e d e d d Z d d Z d d Z d d Z d S) r a Represents a parameter in a function signature.
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* name : str
The name of the parameter as a string.
* default : object
The default value for the parameter if specified. If the
parameter has no default value, this attribute is set to
`Parameter.empty`.
* annotation
The annotation for the parameter if specified. If the
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`Parameter.empty`.
* kind : str
Describes how argument values are bound to the parameter.
Possible values: `Parameter.POSITIONAL_ONLY`,
`Parameter.POSITIONAL_OR_KEYWORD`, `Parameter.VAR_POSITIONAL`,
`Parameter.KEYWORD_ONLY`, `Parameter.VAR_KEYWORD`.
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BoundArgumentsa Result of `Signature.bind` call. Holds the mapping of arguments
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An ordered mutable mapping of parameters' names to arguments' values.
Does not contain arguments' default values.
* signature : Signature
The Signature object that created this instance.
* args : tuple
Tuple of positional arguments values.
* kwargs : dict
Dict of keyword arguments values.
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r Yq X| j t k r | j | q | | | BoundArguments
Creates a mapping from positional and keyword arguments to
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Creates a partial mapping from positional and keyword arguments
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