Renamed to posixpath; changed def'n of split().
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@ -1,4 +1,4 @@
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# Module 'path' -- common operations on POSIX pathnames
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# Module 'posixpath' -- common operations on POSIX pathnames
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import posix
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import stat
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@ -31,20 +31,24 @@ def join(a, b):
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return a + '/' + b
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# Split a path in head (empty or ending in '/') and tail (no '/').
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# The tail will be empty if the path ends in '/'.
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# It is always true that head + tail == p; also join(head, tail) == p.
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# Note that because head ends in '/', if you want to find all components
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# of a path by repeatedly getting the head, you will have to strip off
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# the trailing '/' yourself (another function should be defined to
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# split an entire path into components.)
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# Split a path in head (everything up to the last '/') and tail (the
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# rest). If the original path ends in '/' but is not the root, this
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# '/' is stripped. After the trailing '/' is stripped, the invariant
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# join(head, tail) == p holds.
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# The resulting head won't end in '/' unless it is the root.
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def split(p):
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if p[-1:] == '/' and p <> '/'*len(p):
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while p[-1] == '/':
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p = p[:-1]
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head, tail = '', ''
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for c in p:
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tail = tail + c
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if c == '/':
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head, tail = head + tail, ''
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if head[-1:] == '/' and head <> '/'*len(head):
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while head[-1] == '/':
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head = head[:-1]
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return head, tail
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@ -119,7 +123,7 @@ def isdir(path):
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return stat.S_ISDIR(st[stat.ST_MODE])
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# Is a path a regulat file?
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# Is a path a regular file?
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# This follows symbolic links, so both islink() and isdir() can be true
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# for the same path.
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