Subprocess provides another method named call(). If you want to ensure your script waits for the subprocess to finish before proceeding, you can use Popen.wait(). If there’s an error, it’s captured in stderr. The stdout variable contains the process’s output. Here, municate() captures both the output and any errors from the process. Process = Popen(, stdout=PIPE, stderr=PIPE) In Python, you can initiate any program with any parameter using this approach. This is similar to executing ‘cat test.py’ in a terminal. The example below demonstrates how to start the Unix program ‘cat’ to read the contents of ‘test.py’. Popen is a fundamental method within the subprocess module. If you’re aspiring to become proficient in Python programming, consider the Python Programming Bootcamp: Go from zero to hero. It’s a powerful tool that lets you interact with the system and other applications directly from your Python code. The subprocess module in Python allows users to spawn new applications, connect to their input/output/error pipes, and obtain their return codes.
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