flake8-eradicate

# 1. Install flake8 and flake8-eradicate pip install flake8 flake8-eradicate # 2. Create a Python file with commented-out code (e.g., example.py) # def old_function(): # print('This is old code') def new_function(): print('This is new code') # old_function() # 3. Run flake8 on your project # It will automatically detect and use the flake8-eradicate plugin. # The default error code is E7901. # Expected output: example.py:3:5: E7901 Found commented out code import os if os.getenv('RUN_FLAKE8_EXAMPLE', 'false').lower() == 'true': # In a real scenario, you'd run this from your terminal # For this example, we simulate the effect by creating a dummy file # and noting the expected output. with open('temp_example.py', 'w') as f: f.write("# def old_function():\n# print('This is old code')\n\ndef new_function():\n print('This is new code')\n\n# old_function()") print("To run, save the code to 'example.py' and execute: 'flake8 example.py'") print("Expected output (or similar): 'example.py:3:5: E7901 Found commented out code'") # You would typically run 'flake8 temp_example.py' in a shell.