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Parse a requirement passed in as a string. Return a Container
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specified, else None.
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|| _ d S r )func)selfr r- r- r. __init__ s zcached_property.__init__Nc C s, |d kr | S | |}t|| j j| |S r )r object __setattr____name__)r objclsr r- r- r. __get__ s
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__module__ __qualname__r r r- r- r- r. r s r c C s~ t jdkr| S | s| S | d dkr.td| | d dkrFtd| | d}t j|krh|t j qP|srt jS t jj| S )a Return 'pathname' as a name that will work on the native filesystem.
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zFileOperator.ensure_dirc C s t || }td|| | js|s0| ||rX|s:d }n ||sHt|t|d }i }|rvtt drvt j
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rB c @ s6 e Zd Zdd Zedd Zdd Zdd Zej Z d S )
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zExportEntry.__repr__c C sD t |tsd}n0| j|jko>| j|jko>| j|jko>| j|jk}|S r )r rC rT ry rw r )r otherr( r- r- r. __eq__ s
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