python : os.path
>>>import os.path
>>>help(os.path)
Help on module ntpath:
NAME:
ntpath - Common pathname manipulations, WindowsNT/95 version.
FILE
g:\python26/lib\ntpath.py
DESCRIPTION
Instead of importing this module directly, import os and refer to
this module as os.path
FUNCTIONS
abspath(path)
Return the absolute version of a path.
basename(p)
Return the final component of a pathname
commonprefix(m)
Given a list of pathnames, returns the longest common leading component
dirname(p)
Returns the directory component of a pathname
exists(path)
Test whether a path exists. Returns False for broken symbolic links
expanduser(path)
Expand ~ and ~user constructs.
If user or $HOME is unknow, do nothing
expandvars(path)
Expand shell variables of the forms $var, ${var} and %var%
Unknown variables are left unchanged.
getatime(filename)
Return the last access time of a file, reported by os.stat().
getctime(filename)
Return the metadata change time of a file, reported by os.stat().
getmtime(filename)
Return the last modification time of a file, reported by os.stat().
getsize(filename)
Return the size of a file, reported by os.stat()
isabs(s)
Test whether a path is absolute
isdir(s)
Return true if the pathname refers to an existing directory.
isfile(path)
Test whether a path is a regular file
islink(path)
Test for symbolic link.
On WindowsNT/95 and OS/2 always return false
ismount(path)
Test whether a path is a mount point (defined as root of drive)
join(a, *p)
Join two or more pathname components, inserting "\" as needed.
If any component is an absolute path, all previous path component
will be discarded.
lexists = exists(path)
Test whether a path exists. Return False for broken symbolic links.
normcases(s)
Normalize case of pathname.
Makes all characters lowercase and all slashes into backslashes.
normpath(path)
Normalize path, eliminating double slashes, etc.
realpath = abspath(path)
Return the absolute version of a path
relpath(path, start=".")
Return a relative version of path
split(p)
Split a pathname.
Return tuple (head, tail) where tail is everything after the final slath
Either part may be empty
splitdrive(p)
Split a pathname into drive and path specifiers. Returns a 2-tuple
"(drive, path)"; either part may empty
splitext(p)
Split the extension from a pathname.
Extension is everything from the last dot to the end, ignoring leadig dots.
Returns "(root, ext)"; ext may be empty.
splitunc(p)
Split a pathname into UNC mount point and relative path specifiers.
Return a 2-tuple (unc, rest); either part may be empty.
If unc is not empty, it has the form "//host/mount" (of similar using
backslashes). unc+rest is always the input path.
Paths containing drive letters never have an UNC part.
walk(top, func, arg)
Directory tree walk with callback function.
For each directory in the directory tree rooted at top (including top
itself, but excluding "." and ".." ), call func(arg, dirname, fnames).
dirname is the name of the directory, and fnames a list of the name of
the files and subdirectories in dirname (excluding "." and ".."). func may
modify the fnames list in-place (e.g. via del or slice assignment),
and walk will only recurse into the subdirectories whose names remain in
fnames; this can be used to implement a filter, or to impose a spectific
order of visiting. No semantics are defined for, or required of, arg,
beyond that arg is always passed to func. It can be sued, e.g., to pass
a filename pattern, or a mutable object designed to accumulate statistics
Passing None for arg is common.
DATA
__all__ = ["normcase", "isabs", "join", "splitdrive", "split..."
altsep = "/"
curdir = "."
defpath = r".;C:\bin"
devnull = "nul"
extsep = "."
patdir = ".."
pathsep = ";"
sep = r"\"
supporte_unicode_filename = True ]
end