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Patch #1273829: os.walk() now has a "followlinks" parameter. If set to

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True (which is not the default), it visits symlinks pointing to
directories.
This commit is contained in:
Georg Brandl 2007-03-16 08:22:40 +00:00
parent 8f06d02935
commit 8844e438b1
4 changed files with 57 additions and 19 deletions
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10
Lib/os.py
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@ -221,7 +221,7 @@ def renames(old, new):
__all__.extend(["makedirs", "removedirs", "renames"])
def walk(top, topdown=True, onerror=None):
def walk(top, topdown=True, onerror=None, followlinks=False):
"""Directory tree generator.
For each directory in the directory tree rooted at top (including top
@ -257,6 +257,10 @@ def walk(top, topdown=True, onerror=None):
to abort the walk. Note that the filename is available as the
filename attribute of the exception object.
By default, os.walk does not follow symbolic links to subdirectories on
systems that support them. In order to get this functionality, set the
optional argument 'followlinks' to true.
Caution: if you pass a relative pathname for top, don't change the
current working directory between resumptions of walk. walk never
changes the current directory, and assumes that the client doesn't
@ -300,8 +304,8 @@ def walk(top, topdown=True, onerror=None):
yield top, dirs, nondirs
for name in dirs:
path = join(top, name)
if not islink(path):
for x in walk(path, topdown, onerror):
if followlinks or not islink(path):
for x in walk(path, topdown, onerror, followlinks):
yield x
if not topdown:
yield top, dirs, nondirs