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author | Georg Brandl <georg@python.org> | 2007-08-15 14:28:22 (GMT) |
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committer | Georg Brandl <georg@python.org> | 2007-08-15 14:28:22 (GMT) |
commit | 116aa62bf54a39697e25f21d6cf6799f7faa1349 (patch) | |
tree | 8db5729518ed4ca88e26f1e26cc8695151ca3eb3 /Doc/library/dircache.rst | |
parent | 739c01d47b9118d04e5722333f0e6b4d0c8bdd9e (diff) | |
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Move the 3k reST doc tree in place.
Diffstat (limited to 'Doc/library/dircache.rst')
-rw-r--r-- | Doc/library/dircache.rst | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Doc/library/dircache.rst b/Doc/library/dircache.rst new file mode 100644 index 0000000..28aa667 --- /dev/null +++ b/Doc/library/dircache.rst @@ -0,0 +1,56 @@ + +:mod:`dircache` --- Cached directory listings +============================================= + +.. module:: dircache + :synopsis: Return directory listing, with cache mechanism. +.. sectionauthor:: Moshe Zadka <moshez@zadka.site.co.il> + + +The :mod:`dircache` module defines a function for reading directory listing +using a cache, and cache invalidation using the *mtime* of the directory. +Additionally, it defines a function to annotate directories by appending a +slash. + +The :mod:`dircache` module defines the following functions: + + +.. function:: reset() + + Resets the directory cache. + + +.. function:: listdir(path) + + Return a directory listing of *path*, as gotten from :func:`os.listdir`. Note + that unless *path* changes, further call to :func:`listdir` will not re-read the + directory structure. + + Note that the list returned should be regarded as read-only. (Perhaps a future + version should change it to return a tuple?) + + +.. function:: opendir(path) + + Same as :func:`listdir`. Defined for backwards compatibility. + + +.. function:: annotate(head, list) + + Assume *list* is a list of paths relative to *head*, and append, in place, a + ``'/'`` to each path which points to a directory. + +:: + + >>> import dircache + >>> a = dircache.listdir('/') + >>> a = a[:] # Copy the return value so we can change 'a' + >>> a + ['bin', 'boot', 'cdrom', 'dev', 'etc', 'floppy', 'home', 'initrd', 'lib', 'lost+ + found', 'mnt', 'proc', 'root', 'sbin', 'tmp', 'usr', 'var', 'vmlinuz'] + >>> dircache.annotate('/', a) + >>> a + ['bin/', 'boot/', 'cdrom/', 'dev/', 'etc/', 'floppy/', 'home/', 'initrd/', 'lib/ + ', 'lost+found/', 'mnt/', 'proc/', 'root/', 'sbin/', 'tmp/', 'usr/', 'var/', 'vm + linuz'] + |