code: def test_opencv():
      """
      This function is workaround to
      test if correct OpenCV Library version has already been installed
      on the machine or not. Returns True if previously not installed.
      """
      try:
          # import OpenCV Binaries
          import cv2
  
          # check whether OpenCV Binaries are 3.x+
          if parse_version(cv2.__version__) < parse_version("3"):
              raise ImportError(
                  "Incompatible (< 3.0) OpenCV version-{} Installation found on this machine!".format(
                      parse_version(cv2.__version__)
                  )
              )
      except ImportError:
          return True
      return False
  
file_path: vidgear/setup.py
imports: import json
  import platform
  import urllib.request
  from pkg_resources import parse_version
  from distutils.util import convert_path
  from setuptools import setup
label_desc: Use image node_id 1 for calling a global function with example usage: test_opencv() and returns: False, True