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| �| j | � q� W| S) a Copy an entire directory tree 'src' to a new location 'dst'.
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return value is unaffected by 'update' or 'dry_run': it is simply
the list of all files under 'src', with the names changed to be
under 'dst'.
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'copy_file'; note that they only apply to regular files, not to
directories. If 'preserve_symlinks' is true, symlinks will be
copied as symlinks (on platforms that support them!); otherwise
(the default), the destination of the symlink will be copied.
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r� } z t j d | | � WYd d } ~ XqC XqC Wd S)z�Recursively remove an entire directory tree.
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