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Diffstat (limited to 'Doc/library/os.rst')
| -rw-r--r-- | Doc/library/os.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/library/os.rst b/Doc/library/os.rst index 74fca8a..309fac2 100644 --- a/Doc/library/os.rst +++ b/Doc/library/os.rst @@ -1751,7 +1751,9 @@ written in Python, such as a mail server's external command delivery program. which is used to define the environment variables for the new process (they are used instead of the current process' environment); the functions :func:`spawnl`, :func:`spawnlp`, :func:`spawnv`, and :func:`spawnvp` all cause - the new process to inherit the environment of the current process. + the new process to inherit the environment of the current process. Note that + keys and values in the *env* dictionary must be strings; invalid keys or + values will cause the function to fail, with a return value of ``127``. As an example, the following calls to :func:`spawnlp` and :func:`spawnvpe` are equivalent:: |