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Diffstat (limited to 'Doc/library/subprocess.rst')
| -rw-r--r-- | Doc/library/subprocess.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst index 1a9dd9d..f03c322 100644 --- a/Doc/library/subprocess.rst +++ b/Doc/library/subprocess.rst @@ -629,6 +629,12 @@ Instances of the :class:`Popen` class have the following methods: :exc:`TimeoutExpired` exception. It is safe to catch this exception and retry the wait. + .. note:: + + The function is implemented using a busy loop (non-blocking call and + short sleeps). Use the :mod:`asyncio` module for an asynchronous wait: + see :class:`asyncio.create_subprocess_exec`. + .. warning:: This will deadlock when using ``stdout=PIPE`` and/or |