diff options
| -rw-r--r-- | Lib/shutil.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Lib/shutil.py b/Lib/shutil.py index f375a5b..82d3f09 100644 --- a/Lib/shutil.py +++ b/Lib/shutil.py @@ -973,7 +973,9 @@ def get_terminal_size(fallback=(80, 24)): def which(cmd, mode=os.F_OK | os.X_OK, path=None): """Given a command, mode, and a path string, return the path which - conforms to the given mode on the path.""" + conforms to the given mode on the PATH, or None if there is no such file. + `mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result of + os.environ.get("PATH"), or can be overridden with a custom search path.""" # Check that a given file can be accessed with the correct mode. # Additionally check that `file` is not a directory, as on Windows # directories pass the os.access check. |