Suddenly with Python PyInstaller No module named pyinstaller

until now py -m pyinstaller Test.py It should have been made of, but there was a memo, but ... There was a pass ... Suddenly it came out with No module named pyinstaller.

environment

・ Windodws10 ・ Python 3.8.3 ・ PyInstaller 3.6

Conclusion

It was solved by changing from pyinstaller to PyInstaller.

The road to resolution

① Is there a pyinstaller in the first place? Since it is windows, check if there is pyinstaller with the following command py -m pip list ② What is in the output list pyinstaller It's capitalized

Was that the case before?

In my environment py -m PyInstaller Test.py It was made of.

It may have been PyInstaller from the beginning just because of my own misunderstanding, Or is it because I upgraded with pip? For the time being, this is the solution.

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