o _a{@sddlZddlZddlZddlZddlmZddlmZmZm Z m Z ddl mZgdZ GdddZ d d Zdd d ZdddZddZedS)N)version) find_module PY_COMPILED PY_FROZEN PY_SOURCE)_imp)Requirerget_module_constantextract_constantc@sLeZdZdZ  dddZddZdd Zdd d Zdd dZdddZ dS)r z7A prerequisite to building or installing a distributionNcCsH|dur |dur tj}|dur||}|durd}|jt|`dS)N __version__)rVersion__dict__updatelocalsself)rnamerequested_versionmodulehomepage attributeformatr4/usr/lib/python3/dist-packages/setuptools/depends.py__init__szRequire.__init__cCs |jdur d|j|jfS|jS)z0Return full package/distribution name, w/versionNz%s-%s)rr)rrrr full_name#s zRequire.full_namecCs0|jdup|jdupt|dko|||jkS)z%Is 'version' sufficiently up-to-date?Nunknown)rrstrr)rrrrr version_ok)szRequire.version_okrcCs~|jdur"zt|j|\}}}|r||WSty!YdSwt|j|j||}|dur=||ur=|jdur=||S|S)aGet version number of installed module, 'None', or 'default' Search 'paths' for module. If not found, return 'None'. If found, return the extracted version attribute, or 'default' if no version attribute was specified, or the value cannot be determined without importing the module. The version is formatted according to the requirement's version format (if any), unless it is 'None' or the supplied 'default'. N)rrrclose ImportErrorr r)rpathsdefaultfpivrrr get_version.s   zRequire.get_versioncCs||duS)z/Return true if dependency is present on 'paths'N)r()rr"rrr is_presentIszRequire.is_presentcCs$||}|dur dS|t|S)z>Return true if dependency is present and up-to-date on 'paths'NF)r(rr)rr"rrrr is_currentMs zRequire.is_current)r NN)NrN) __name__ __module__ __qualname____doc__rrrr(r)r*rrrrr s   r cCs"tjdd}|s |St|S)Ncss dVdSr+rrrrremptyVszmaybe_close..empty) contextlibcontextmanagerclosing)r$r0rrr maybe_closeUs   r4c Cszt||\}}\}}}} Wn tyYdSwt|C|tkr.|dt|} n,|tkr9t ||} n!|t krFt ||d} nt ||| } t | |dWdSWdn1sdwYt| ||S)zFind 'module' by searching 'paths', and extract 'symbol' Return 'None' if 'module' does not exist on 'paths', or it does not define 'symbol'. If the module defines 'symbol' as a constant, return the constant. Otherwise, return 'default'.Nexec)rr!r4rreadmarshalloadrrget_frozen_objectrcompile get_modulegetattrr ) rsymbolr#r"r$pathsuffixmodekindinfocodeimportedrrrr `s&      r c Cs||jvrdSt|j|}d}d}d}|}t|D]$}|j} |j} | |kr.|j| }q| |kr>| |ks:| |kr>|S|}qdS)aExtract the constant value of 'symbol' from 'code' If the name 'symbol' is bound to a constant value by the Python code object 'code', return that value. If 'symbol' is bound to an expression, return 'default'. Otherwise, return 'None'. Return value is based on the first assignment to 'symbol'. 'symbol' must be a global, or at least a non-"fast" local in the code block. That is, only 'STORE_NAME' and 'STORE_GLOBAL' opcodes are checked, and 'symbol' must be present in 'code.co_names'. NZad)co_nameslistindexdisBytecodeopcodearg co_consts) rEr?r#name_idx STORE_NAME STORE_GLOBAL LOAD_CONSTconst byte_codeoprPrrrr }s  r cCs>tjds tjdkr dSd}|D] }t|=t|qdS)z Patch the globals to remove the objects not available on some platforms. XXX it'd be better to test assertions about bytecode instead. javacliN)r r )sysplatform startswithglobals__all__remove) incompatiblerrrr_update_globalss rb)r5N)r5)r[r9r1rMsetuptools.extern.packagingrrrrrrr r_r r4r r rbrrrrs  D $