Bugs item #1278906, was opened at 2005-09-01 06:55 Message generated for change (Comment added) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1278906&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Documentation Group: Python 2.5 >Status: Closed >Resolution: Works For Me Priority: 5 Submitted By: YoHell (yohell) Assigned to: Nobody/Anonymous (nobody) Summary: invalid syntax in os.walk() first example Initial Comment: Hi! The first example code block in the documentation for os.walk() has invalid syntax in it. The docs are available here: http://www.python.org/doc/current/lib/os-file-dir.html#l2h-1466 This is the example code block: import os from os.path import join, getsize for root, dirs, files in os.walk('python/Lib/email'): print root, "consumes", print sum(getsize(join(root, name)) for name in files), print "bytes in", len(files), "non-directory files" if 'CVS' in dirs: dirs.remove('CVS') # don't visit CVS directories Line 5 has the the invalid syntax: print sum(getsize(join(root, name)) for name in files), The example works if brackets are added like so: print sum([getsize(join(root, name)) for name in files]), I recommend that someone responsible should make this update in the docs. You guys are brilliant. Thanks for a splendid language with docs to match! Cheers! /Joel Hedlund PhD student, IFM Bioinfomatics, Linköping University ---------------------------------------------------------------------- >Comment By: Raymond Hettinger (rhettinger) Date: 2005-09-01 07:44 Message: Logged In: YES user_id=80475 I suspect you are using Py2.4 documentation while running Py2.3 or earlier. In Py2.4, the bracketless syntax was introduced with new semantics which produce a similar result but run with a generator instead of a list comprehension, resulting in a significant savings in memory. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=105470&aid=1278906&group_id=5470 _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
