Python-manhole
Access running Python applications for debugging. Connect via a Unix socket to view thread stacktraces and interact with the process using a REPL.
Provides an in-process service that accepts Unix domain socket connections for debugging live Python applications. Once connected, you get stacktraces for all threads and an interactive REPL prompt to inspect and interact with the running process.
It can operate in two main modes:
- As a daemon thread, always listening for connections.
- As a signal handler (using
oneshot_on), pausing the application and waiting for a connection upon receiving a specific signal (e.g.,USR1,USR2).
Key features include:
- Secure access: Connection restricted to the application's effective user ID or root.
- Simple setup: Install with
pip install manholeand activate withmanhole.install(). - Fork-compatible: Automatically reinstalls after
os.forkoros.forkpty(can be disabled). - Gevent/Eventlet support: Works with async frameworks (requires specific configuration).
- Signal handling: Can activate the listening thread on a signal (
activate_on) and masks signals in its own thread to avoid interference. - Flexible configuration: Options for socket path, activation signals, verbosity, and more.
Connect using tools like socat readline unix-connect:/tmp/manhole-<pid> for an enhanced debugging experience.
Categories:
Tags:
Starlight
pdoc
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