+-- 17 lines: import sys-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

            if "CV_VERSION_MAJOR" in words:
                opencv_version += words[2]
                opencv_version += "."

            if "CV_VERSION_MINOR" in words:
                opencv_version += words[2]                                                                                                                                                                 
                opencv_version += "."

            if "CV_VERSION_REVISION" in words:
                opencv_version += words[2]
                break

+-- 12 lines: # used in local dev releases-----------------------------------------------------------------------------------------------------------------------------------------------------------------
            .splitlines()[0]
            .decode()
            .split("-")
        )
    except subprocess.CalledProcessError as e:
        # no tags reachable (e.g. on a topic branch in a fork), see
        # https://stackoverflow.com/questions/4916492/git-describe-fails-with-fatal-no-names-found-cannot-describe-anything                                                                                
        if e.output.rstrip() == b"fatal: No names found, cannot describe anything.":
            tag = []
        else:
            print(e.output)
            raise

+--  7 lines: if len(tag) == 1:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
        version = date.today().strftime('%Y%m%d')
        opencv_version += ".{}".format(version)
    else:
        # local version identifier, not to be published on PyPI
        version = git_hash
        opencv_version += "+{}".format(version)
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    with open("cv2/version.py", "w") as f:                                                                                                                                                                 
        f.write('opencv_version = "{}"\n'.format(opencv_version))
        f.write("contrib = {}\n".format(contrib))
        f.write("headless = {}\n".format(headless))
        f.write("rolling = {}\n".format(rolling))
        f.write("ci_build = {}".format(ci_build))

+-- 17 lines: import sys-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

            if "CV_VERSION_MAJOR" in words:
                opencv_version += words[2]
                opencv_version += "."

            if "CV_VERSION_MINOR" in words:
                opencv_version += words[3]                                                                                                                                                                 
                opencv_version += "."

            if "CV_VERSION_REVISION" in words:
                opencv_version += words[2]
                break

+-- 12 lines: # used in local dev releases-----------------------------------------------------------------------------------------------------------------------------------------------------------------
            .splitlines()[0]
            .decode()
            .split("-")
        )
    except subprocess.CalledProcessError as e:
        # no tags reachable (e.g. on a topic branch in a fork), see
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
        if e.output.rstrip() == b"fatal: No names found, cannot describe anything.":
            tag = []
        else:
            print(e.output)
            raise

+--  7 lines: if len(tag) == 1:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
        version = date.today().strftime('%Y%m%d')
        opencv_version += ".{}".format(version)
    else:
        # local version identifier, not to be published on PyPI
        version = git_hash
        opencv_version += "+{}".format(version)
        print('print')                                                                                                                                                                                     

    with open("cv3/version.py", "w") as f:                                                                                                                                                                 
        f.write('opencv_version = "{}"\n'.format(opencv_version))
        f.write("contrib = {}\n".format(contrib))
        f.write("headless = {}\n".format(headless))
        f.write("rolling = {}\n".format(rolling))
        f.write("ci_build = {}".format(ci_build))