hanging-threads

Deadlocks? Detect where your threads hang in Python.

Installation

Install the module with pip:

pip install hanging_threads

If installing with Windows, open the command line program “cmd” and type

py -m pip install hanging_threads

Usage

Monitoring is as simple as calling the start_monitoring() function.

from hanging_threads import start_monitoring
monitoring_thread = start_monitoring()

You may also pass additional parameters.

monitoring_thread = start_monitoring(seconds_frozen=10, test_interval=100)

The values in the example are defaults. This mean the check will happen 10 times per second. If a thread is frozen for at least 10 seconds then the stack is dumped into standard error stream. This happens again every 10 seconds while there is no changes in the stack registered during checks. Checks are done in intervals of 100ms.

Note that it makes sense to save the thread object into variable so that you or somebody else can stop the annoying dumps if needed. For example, you may want to do this in the Python shell.

monitoring_thread.stop()

Changelog

v2.0.7: Start changelog, fix crash when line number is not known.

New Releases

To release a new version:

Edit the README.md file in the Changelog Section and add the changes. Increase the hanging_threads.py version.
```
git add README.rst hanging_threads.py
git commit -m"v2.0.7"
git push
```
Create a tag for the version.
```
git tag v2.0.7
git push origin v2.0.7
```
Notify solved issues about the release.

Metadata

Release files for hanging-threads 2.0.7

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for hanging-threads 2.0.7
File	Size	Uploaded
hanging_threads-2.0.7.tar.gz	5.2 kB	Feb 17, 2024	Details

Built distribution (wheel)

Table of built distributions (wheels) for hanging-threads 2.0.7
File	Interpreter	ABI	Platform	Reset
hanging_threads-2.0.7-py3-none-any.whl 5.5 kB Feb 17, 2024	Python 3	none	any	Details

Total release size: 10.7 kB

Release files / hanging_threads-2.0.7.tar.gz

Download URL	hanging_threads-2.0.7.tar.gz
Size	5.2 kB
Tags	Source
SHA-256 checksum How to use checksums	`5cfc1e34fcf9e6a0215cf8e0425532b77bd34ce0355a84e410fdc8e1ea15104a`
BLAKE2b-256 checksum How to use checksums	`928206eb3c0b55e205f7739243fb9dec8814a098716ebb6dbec5c0f7c8694488`
Upload date	Feb 17, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/5.0.0 CPython/3.9.18`

Release files / hanging_threads-2.0.7-py3-none-any.whl

Download URL	hanging_threads-2.0.7-py3-none-any.whl
Size	5.5 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`a6cbfd962dfa02731899081f12e7ac51279e0170dcb4b6421e7c5a320176b744`
BLAKE2b-256 checksum How to use checksums	`1d6a2c0119bc9745bb5b3e7cb5cb962b84282d5d37fb8827c72d9ded7ce3a078`
Upload date	Feb 17, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/5.0.0 CPython/3.9.18`