def _extract3d(zipFileDir, destDirectory, outputFileName):
    ' a wrapper function for the recursive file extraction function '
    with zipfile.ZipFile(zipFileDir) as zipFile:
        _extract3dRecursively(zipFile.namelist(), zipFile, destDirectory, outputFileName)
a wrapper function for the recursive file extraction function
def _extract3d(zipFileDir, destDirectory, outputFileName):
    '  '
    with zipfile.ZipFile(zipFileDir) as zipFile:
        _extract3dRecursively(zipFile.namelist(), zipFile, destDirectory, outputFileName)