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�r. Y nX d S )Tz�Common pathname manipulations, WindowsNT/95 version.
Instead of importing this module directly, import os and refer to this
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r6 c C s8 t �| �} t| t�r$| �dd��� S | �dd��� S dS )zaNormalize case of pathname.
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a� Split a pathname into drive/UNC sharepoint and relative path specifiers.
Returns a 2-tuple (drive_or_unc, path); either part may be empty.
If you assign
result = splitdrive(p)
It is always true that:
result[0] + result[1] == p
If the path contained a drive letter, drive_or_unc will contain everything
up to and including the colon. e.g. splitdrive("c:/dir") returns ("c:", "/dir")
If the path contained a UNC path, the drive_or_unc will contain the host name
and share up to but not including the fourth directory separator character.
e.g. splitdrive("//host/computer/dir") returns ("//host/computer", "/dir")
Paths cannot contain both a drive letter and a UNC path.
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c C s t | �d S )z)Returns the final component of a pathnamerA �r r\ r4 r4 r5 r � s c C s t | �d S )z-Returns the directory component of a pathnamer r] r\ r4 r4 r5 r � s c
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�r� tjd| �� � Y nX dS )zDGiven a sequence of path names, returns the longest common sub-path.z%commonpath() arg is an empty sequencer r8 r7 rZ r r r c s g | ]}t |�� ���� ��qS r4 )r r; r< )r� rP )r$ r! r4 r5 r� � s z commonpath.<locals>.<listcomp>c s g | ]\}}|� � ��qS r4 r] �r� rV rP �r! r4 r5 r� � s c 3 s" | ]\}}|d d� � kV qd S )NrA r4 r� r� r4 r5 � <genexpr>� s z commonpath.<locals>.<genexpr>z%Can't mix absolute and relative pathsNc s s | ]\}}|V qd S )Nr4 r� r4 r4 r5 r� � s rA z Paths don't have the same drivec s g | ]}|r|� kr|�qS r4 r4 �r� �c�r r4 r5 r� � s c s g | ]}� fd d�|D ��qS )c s g | ]}|r|� kr|�qS r4 r4 r� r� r4 r5 r� � s z)commonpath.<locals>.<listcomp>.<listcomp>r4 )r� r> r� r4 r5 r� � s r- )r- )r` �tuplerG r9 r: r0 r1 r� rC r r; r �min�max� enumerater
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