from subprocess import call
import time

with open("real_execution_time", 'w') as f:
    for _ in range(100):
        start = time.time()
        call(["pypy", "-m", "pytest", "integration/test_powerwindow.py", "-k", "fast", "-x"])
        print("Time to execute: " + str(time.time() - start))
        f.write(str(time.time() - start))
        f.write("\n")
        f.flush()