Comment obtenir la sortie en temps réel d'un sous-processus en Python ?

Realtime Output from Subprocess

When executing command line programs using Python's subprocess module, developers often encounter the issue of buffered output. This can be problematic for tasks that require line-by-line processing.

To resolve this issue, users can consider the following approach:

• Utilize p.stdout.readline() within a while loop to read each line of output as soon as it becomes available. For example:

while True:
    line = p.stdout.readline()
    if not line: break  # No more output, exit loop

    # Process the current line as needed...

This method allows for real-time output processing without encountering buffering issues. Despite initial attempts with for line in p.stdout: and bufsize settings, this approach has been proven to effectively capture output in a timely manner.

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