Software⏱️ 2 min read📅 2026-05-31

How to Fix: Using module 'subprocess' with timeout

Timeout issue with subprocess module in Python

Quick Answer: Use the timeout decorator from the timeout library to add a timeout to your subprocess call.

📋 Table of Contents

  1. ✅ Best Solutions to Fix It
  2. 💡 Conclusion

The subprocess module in Python does not have a built-in timeout feature, which means it cannot be used to kill a process running for more than X number of seconds. This can lead to the process running indefinitely and consuming system resources.

✅ Best Solutions to Fix It

Method 1: Using communicate with timeout

  1. Step 1: Use the timeout argument when calling communicate, like so: proc.communicate(timeout=10). This will terminate the process after 10 seconds if it does not finish within that time.

Method 2: Using run with timeout

  1. Step 1: Use the timeout argument when calling run, like so: subprocess.run(cmd, timeout=10). This will also terminate the process after 10 seconds if it does not finish within that time.

💡 Conclusion

By implementing one of these methods, you can add a timeout to your subprocess calls and avoid the 'Using module 'subprocess' with timeout' error.

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