[Kivy] ModuleNotFoundError: No module named 'kivy'

[Exsul]

It may not be installed for the version of python that you are running
run the following commands (from command line) to see where it's installed
Since the link you show instructs you to use pip, make sure your pip is for your python version

pip -V
# and for python
python -V

pip should show something like:

Output:
pip -V
pip 19.0.3 from ...pyenv/versions/3.7.2/lib/python3.7/site-packages/pip (python 3.7)
python -V
Python 3.7.2

if you see (python 2.7) in pip -V, and your python version is 3.whatever,
then you need to reinstall using pip3

This was the result:

C:\Users\[USERNAME]>pip -V
pip 19.0.3 from c:\users\[USERNAME]\appdata\local\programs\python\python37\lib\site-packages\pip (python 3.7)

C:\Users\[USERNAME]>python -V
Python 3.7.3