coverage-enable-subprocess

import os import subprocess import sys # 1. Create a dummy .coveragerc for demonstration with open('.coveragerc', 'w') as f: f.write('[run]\n') f.write('parallel = True\n') f.write('data_file = .coverage.subprocess\n') # 2. Set the environment variable to point coverage.py to the config file os.environ['COVERAGE_PROCESS_START'] = os.path.abspath('.coveragerc') # 3. Create a simple script to run as a subprocess script_content = """ import os import sys # This line should be covered by the subprocess def my_subprocess_func(): print("Hello from subprocess!") if __name__ == '__main__': my_subprocess_func() """ with open('subprocess_target.py', 'w') as f: f.write(script_content) print("Running subprocess...") # 4. Run the script as a subprocess # Ensure environment variables are passed correctly subprocess_env = os.environ.copy() process = subprocess.Popen([sys.executable, 'subprocess_target.py'], env=subprocess_env) process.wait() print("Subprocess finished. Check for .coverage.subprocess file.") # Clean up (optional for quickstart, but good practice) os.remove('.coveragerc') os.remove('subprocess_target.py') # To see the actual coverage report, you would then run: # coverage combine --data-file=.coverage.subprocess # coverage report --data-file=.coverage.subprocess