I'm running Python 3.6.6rc1 on macOS Mojave (10.14.1) and I'm trying to import python-pptx Currently, my first line is causing a problem: import python-pptx I deleted that and added this, to no avail. from pptx import Presentation This is my error: ModuleNotFoundError: No module named 'pptx' I have downloaded python-pptx using pip: sudo pip install python-pptx Running pip show python-pptx in the Terminal, I get: Name: python-pptx Version: 0.6.16 Summary: Generate and manipulate Open XML PowerPoint (.pptx) files Home-page: http://github.com/scanny/python-pptx Author: Steve Canny Author-email: python-pptx@googlegroups.com License: The MIT License (MIT) Location: /Library/Python/2.7/site-packages Requires: lxml, Pillow, XlsxWriter Required-by: As you can see, the Location is different than the Version. Is that a problem? Running sys.path in the shell shows: ['/Users/gstrickland/Desktop', '/Users/gstrickland/Documents', '/Library/Frameworks/Python.framework/Versions/3.6/lib/python36.zip', '/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6', '/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/lib-dynload', '/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages'] Running python -m pip show python-pptx I get this: Name: python-pptx Version: 0.6.16 Summary: Generate and manipulate Open XML PowerPoint (.pptx) files Home-page: http://github.com/scanny/python-pptx Author: Steve Canny Author-email: python-pptx@googlegroups.com License: The MIT License (MIT) Location: /Users/gstrickland/Library/Python/2.7/lib/python/site-packages Requires: lxml, Pillow, XlsxWriter Required-by: Different location, but still in 2.7 Running python -c'import sys; print(sys.path)' gives me: ['', '/Library/Python/2.7/site-packages/pip-18.1-py2.7.egg', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', '/Users/gstrickland/Library/Python/2.7/lib/python/site-packages', '/Library/Python/2.7/site-packages', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC'] How do I fix this error? Continue reading...