[[\@sdZddfZddlZddlZddlZddlZddlZddlZddl Z ddl Z ddl Z ddl Z ddl Z ddlZddlZddlmZddlmZmZyddlmZWnNek r8dd f\ZZd d f\ZZd d df\ZZZYn5Xe Z!x(ej"D]\Z#Z$e#e!de$Z%ddZ&ddZ'ddZ(ddZ)ddZ*e+e drddZ,n ddZ,e+e drd d!Z-n d"d!Z-d#d$Z.d%d&Z/d'd(Z0d)d*Z1d+d,Z2d-d.Z3d/d0Z4d1d2Z5d3d4Z6dd5d6Z7ed7d8Z8d9d:Z9d;d<Z:d=dd>d?Z;d@dAZ<dBdCZ=dDdEZ>dFdGZ?edHdIZ@dJdKZAdLdMZBdNdOZCddPdQZDiZEiZFddRdSZGdTdUZHdVdWZIGdXdYdYeJZKGdZd[d[ZLd\d]ZMd^d_ZNd`daZOdbdcZPdddedfZQedgdhZRdidjZSdkdlZTedmdnZUdodpZVedqdrZWdsdtZXedudvZYdwdxZZddydzZ[d{d|Z\dddfiie]d}d~dd~dd~dd~e[dd Z^e]dd~dd~dd~ddZ_ddZ`ddZaddZbeddZcddZdeddZedddZfddZgdddZhdddZiddZjdddZkdddZlemZnddZoddZpddZqddZrddZsenddZtdZudZvdZwdZxddZyddZze{e{j|Z}e{e~j|Ze{ejdZe}eee jfZddZfddZddZddZddZddZddZdddZdddZddddZddZGdddZGdddZGdddeZedddZedddZed ddZedddZed ddZGdddZGdddZGdddZddZedkrendS)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_cCst|tjS)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)objectr/usr/lib/python3.4/inspect.pyismoduleDsrcCs t|tS)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)rtype)rrrrisclassMsrcCst|tjS)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)rr MethodType)rrrrismethodUsrcCsQt|s$t|s$t|r(dSt|}t|doPt|d S)aReturn true if the object is a method descriptor. But not if ismethod() or isclass() or isfunction() are true. This is new in Python 2.2, and, for example, is true of int.__add__. An object passing this test has a __get__ attribute but not a __set__ attribute, but beyond that the set of attributes varies. __name__ is usually sensible, and __doc__ often is. Methods implemented via descriptors that also pass one of the other tests return false from the ismethoddescriptor() test, simply because the other tests promise more -- you can, e.g., count on having the __func__ attribute (etc) when an object passes ismethod().F__get____set__)rr isfunctionrhasattr)rtprrrismethoddescriptor_s$ rcCsPt|s$t|s$t|r(dSt|}t|doOt|dS)aReturn 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.Frr)rrrrr)rrrrrisdatadescriptorss$ rMemberDescriptorTypecCst|tjS)zReturn true if the object is a member descriptor. Member descriptors are specialized descriptors defined in extension modules.)rrr )rrrrismemberdescriptorsr!cCsdS)zReturn true if the object is a member descriptor. Member descriptors are specialized descriptors defined in extension modules.Fr)rrrrr!sGetSetDescriptorTypecCst|tjS)zReturn true if the object is a getset descriptor. getset descriptors are specialized descriptors defined in extension modules.)rrr")rrrrisgetsetdescriptorsr#cCsdS)zReturn true if the object is a getset descriptor. getset descriptors are specialized descriptors defined in extension modules.Fr)rrrrr#scCst|tjS)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)rr FunctionType)rrrrrs rcCs,tt|st|o(|jjt@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.)boolrr__code__co_flags CO_GENERATOR)rrrrisgeneratorfunctionsr)cCst|tjS)aReturn 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)rr GeneratorType)rrrr isgeneratorsr+cCst|tjS)abReturn 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))rr TracebackType)rrrr istracebacksr-cCst|tjS)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)rr FrameType)rrrrisframes r/cCst|tjS)auReturn true if the object is a code object. 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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. cSs(g|]}|ttfkr|qSr)rr).0clsrrr Ss z(classify_class_attrs..Nr>z)__dict__ is special, don't want the proxy __objclass__z static methodz class methodpropertymethoddata)r:rtupler<r>r?rrr@rAr; ExceptionrC __getattr__rB staticmethod classmethodrTr4rOrD)rQrFZmetamroZ class_basesZ all_basesrIrJrKrLresultrHnameZhomeclsZget_objZdict_objexcZlast_clsZsrch_clsZsrch_objobjkindrrrclassify_class_attrs6s                             racCs|jS)zHReturn tuple of base classes (including cls) in method resolution order.)__mro__)rQrrrr:sr:stopcsdkrdd}nfdd}|}t|h}xV||r|j}t|}||krtdj|n|j|qEW|S)anGet 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. NcSs t|dS)N __wrapped__)r)frrr _is_wrapperszunwrap.._is_wrappercst|do| S)Nrd)r)re)rcrrrfsz!wrapper loop when unwrapping {!r})idrd ValueErrorformatrD)funcrcrfrememoZid_funcr)rcrunwraps    rlcCs&|j}t|t|jS)zBReturn the indent size, in spaces, at the start of a line of text.) expandtabslenlstrip)lineZexplinerrr indentsizes rqc CsCy |j}Wntk r%dSYnXt|ts9dSt|S)zGet the documentation string for an object. All tabs are expanded to spaces. 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Nc3s|]}j|VqdS)N)r)rPs)rrr >sz getsourcefile..rc3s|]}j|VqdS)N)r)rPr)rrrrAs __loader__)rrrDEBUG_BYTECODE_SUFFIXESOPTIMIZED_BYTECODE_SUFFIXESanyrrsplitextSOURCE_SUFFIXESEXTENSION_SUFFIXESexistsrC getmodule linecachecache)rZall_bytecode_suffixesr)rr getsourcefile7s !rcCsC|dkr't|p!t|}ntjjtjj|S)zReturn an absolute path to the source or compiled file for an object. 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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.cs7|}|kr3|d|7}n|S)Nz: r)argr\)rr% formatargrrformatargandannotation*s  z-formatargspec..formatargandannotationNr((z, )r )rn enumeraterAr)rrrrrrrr, formatvarargs formatvarkw formatvalueZ formatreturnsr%r-specsZ firstdefaultrr+specZ kwonlyargr\r)rr%r,r formatargspecs2      r6cCsd|S)Nr(r)r]rrrr9KscCsd|S)Nz**r)r]rrrr9LscCsdt|S)Nr))r$)rMrrrr9Msc Cs|||dd}g} x1tt|D]} | j||| q.W|ry| j|||||n|r| j|||||nddj| dS)afFormat 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. 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A tuple of five things is returned: the filename, the line number of the current line, the function name, a list of lines of context from the source code, and the index of the current line within that list. The optional second argument specifies the number of lines of context to return, which are centered around the current line.z'{!r} is not a frame or traceback objectrrrN)r- tb_linenorf_linenor/rrirrrrmaxr}rnrWrco_name)r!contextlinenorrrrindexrrr getframeinfos&       " r_cCs|jS)zCGet the line number from a frame object, allowing for optimization.)rY)r!rrr getlinenosr`cCs=g}x0|r8|j|ft|||j}q W|S)zGet a list of records for a frame and all higher (calling) frames. Each record contains a frame object, filename, line number, function name, a list of lines of context, and index within the context.)rAr_f_back)r!r\ framelistrrrgetouterframes"s   rccCs@g}x3|r;|j|jft|||j}q W|S)zGet a list of records for a traceback's frame and all lower frames. 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