(e.g., via del or slice assignment), and walk will only recurse into the
subdirectories whose names remain in dirnames; this can be used to prune the
search, or to impose a specific order of visiting. Modifying dirnames when
- topdown is false is ineffective, since the directories in dirnames have
- already been generated by the time dirnames itself is generated. No matter
- the value of topdown, the list of subdirectories is retrieved before the
- tuples for the directory and its subdirectories are generated.
+ topdown is false has no effect on the behavior of os.walk(), since the
+ directories in dirnames have already been generated by the time dirnames
+ itself is generated. No matter the value of topdown, the list of
+ subdirectories is retrieved before the tuples for the directory and its
+ subdirectories are generated.
By default errors from the os.scandir() call are ignored. If
optional arg 'onerror' is specified, it should be a function; it