'consider-using-with' code quality suggestion from VS Code using subprocess module

user_15151096 0
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I used subprocess.popen as follows. The following linter suggestion occurs in vscode

try:
            p = subprocess.Popen(
                ["python", "app.py"]
            )
except:
            traceback.print_exc()

Consider using 'with' for resource-allocating operationspylint(consider-using-with)

But I don't know where to use 'with'

subprocess python
1 Answers

Use with to assign the variable from subprocess.popen().

try:
    with subprocess.Popen(['python', 'app.py']) as p:
        # code here
except:
    traceback.print_exc()

Note that the try/except will also catch exceptions in the body of with. See this answer for how you can structure the code to just catch an exception from subprocess.Popen().

user_14918950
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