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j6 j7 � Z8 d � Z9 d � Z: d � Z; d � Z< d � Z= d e> f d � � YZ? d � Z@ d d eB d eB eB d � ZC d! � ZD d" � ZE d# � ZF d d eB d eB d eB d$ � ZG d eB d eB d% � ZH eB d eB d& � ZI d S(' s~ Backing implementation for InstallRequirement's various constructors
The idea here is that these formed a major chunk of InstallRequirement's size
so, moving them and support code dedicated to them outside of that class
helps creates for better understandability for the rest of the code.
These are meant to be used elsewhere within pip to create instances of
InstallRequirement.
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- a requirement name
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Accepted requirements:
svn+http://blahblah@rev#egg=Foobar[baz]&subdirectory=version_subdir
.[some_extra]
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This does not check whether the target actually exists, only judge from the
appearance.
Returns true if any of the following conditions is true:
* a path separator is found (either os.path.sep or os.path.altsep);
* a dot is found (which represents the current directory).
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First, it checks whether a provided path is an installable directory
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S( s Creates an InstallRequirement from a name, which might be a
requirement, directory containing 'setup.py', filename, or URL.
:param line_source: An optional string describing where the line is from,
for logging purposes in case of an error.
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