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| -rw-r--r-- | Doc/library/subprocess.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst index d1471f1ff8..b93bd0395c 100644 --- a/Doc/library/subprocess.rst +++ b/Doc/library/subprocess.rst @@ -93,8 +93,9 @@ This module defines one class called :class:`Popen`: searching the executable, so you can't specify the program's path relative to *cwd*. - If *env* is not ``None``, it defines the environment variables for the new - process. + If *env* is not ``None``, it must be a mapping that defines the environment + variables for the new process; these are used instead of inheriting the current + process' environment, which is the default behavior. If *universal_newlines* is :const:`True`, the file objects stdout and stderr are opened as text files, but lines may be terminated by any of ``'\n'``, the Unix |