When : 
Traceback (most recent call last):
  File "uclliu.py", line 14, in <module>
  File "c:\users\john.gis\appdata\local\temp\pip-unpacked-wheel-roqvgu\PyInstaller\loader\pyimod03_importers.py", line 391, in load_module
  File "site-packages\configparser.py", line 12, in <module>
  File "c:\users\john.gis\appdata\local\temp\pip-unpacked-wheel-roqvgu\PyInstaller\loader\pyimod03_importers.py", line 391, in load_module
  File "site-packages\backports\__init__.py", line 1, in <module>
ImportError: No module named pkgutil

From : https://pypi.org/project/backports/
Fix : C:\python27\Lib\site-packages\backports\__init__.py

#__path__ = __import__('pkgutil').extend_path(__path__, __name__)
from pkgutil import extend_path
__path__ = extend_path(__path__, __name__)