How Can I Run an External Python Script from Within Another Running Script?

Invoking External Scripts Within Running Scripts

Question:

How can you execute a script (e.g., test1.py) that is not defined as a Python module from within a service script (e.g., service.py)?

Answer:

Step 1: Define Functions in the External Script (test1.py)

Create functions within test1.py that encapsulate the desired execution logic. For instance:

def some_func():
    print('in test 1, unproductive')

if __name__ == '__main__':
    # test1.py executed as script
    # do something
    some_func()

Step 2: Import the External Script into the Service Script (service.py)

In service.py, import the external module using the following code:

import test1

Step 3: Call the Functions from the Service Script

Within the service.py script, call the functions defined in test1.py. For example:

def service_func():
    print('service func')

if __name__ == '__main__':
    # service.py executed as script
    # do something
    service_func()
    test1.some_func()

By following these steps, service.py can effectively execute specific functions within test1.py, even though test1.py is not defined as a module.

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