Multiple issues with the CountMillionCharacters family of programs.

The README states:

CountMillionCharacter.py And CountMillionCharacter2.0.py - Gets character count of a text file.

Yet CountMillionCharacter2.0.py seems to be counting words, and says as much.

There is also a folder CountMillionCharacters-Variations which contains a third version of the program, named variation1.py. It would obviously be good to decide on what the CountMillionCharacters programs are meant to do, and the versions/variations to create.

For now, I think there are some changes to be made in at least two of the versions:

• For one, dropping the use of .upper(), or at least replacing it with .casefold().
• The use of .get() in variation1.py could be replaced with a defaultdict.
• variation.py contains a camelCase variable name.
• CountMillionCharacter.py uses exit() for seemingly no good reason.
• CountMillionCharacter.py [calls main()] instead of exiting the program or using a loop.
• ...and more.

I will try to tweak the code and create a pull request (or a few).

Commencez par les entrées du README pour CountMillionCharacter.py et CountMillionCharacter2.0.py, puis comparez ces fichiers avec CountMillionCharacters-Variations/variation1.py. Déterminez et documentez le comportement attendu et la structure des versions avant de modifier la gestion de la casse indiquée, l’utilisation de defaultdict, le nommage des variables et le flux de sortie du programme ; le travail est terminé lorsque les programmes et le README concordent.