import subprocess
    import sys
    import_cv2_proc = subprocess.Popen(
        [sys.executable, "-c", "import cv2"],
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE)
    out, err = import_cv2_proc.communicate()
    retcode = import_cv2_proc.poll()
    if retcode != 0:
        cv2 = None
    else:
        import cv2
else:
    try:
        import cv2
    except ImportError:
        cv2 = None```python