add exercise, presentation and tutorials

python/EXERCISE.md

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+L'étudiant.e s'engage dans une recherche créative en faisant un commentaire, une réflexion ou un detournement des plateformes culturelles, ou des débats politiques, qui sont médiatisés numériquement (par example en ligne). Cet exercice doit avoir un élément artistique et faire appel à Python en tout, ou en partie dans son exécution. Vous pouvez consulter le matériel pertinent de la classe python, tel que les diapositives de présentation, les exemples de code et les références de tutoriels, à l'adresse suivante:
+https://git.erg.school/P039/art_num_2024/src/branch/main/python

python/README.md

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-git repo for art num
+## Python course 
 
-videogrep:
+### install pip3 or pip
+Windows/Linux: [Installation](https://pip.pypa.io/en/stable/installation/)   
+MacOS: Install Homebrew, see [howto](https://brew.sh/). After installation you may need to add homebrew to your PATH. Exectute the code, line by line, from the messages at the end of the homebrew installation in your terminal. Or read the steps [here](https://usercomp.com/news/1130946/add-homebrew-to-path).   
+Verify brew is installed with `brew --version`. If not errors, then install pip with `brew install pip`.  
+
+Depending on your system, you may have pip or pip3. Execute `pip --version` or `pip3 --version` and see which one works for you.
+
+### virtualenv
+Windows/Linux: (Installation)[https://virtualenv.pypa.io/en/latest/installation.html]  
+MacOS: Execute `brew install virtualenv`  
+How to use it for all systems -> [User Guide](https://virtualenv.pypa.io/en/latest/user_guide.html)
+
+### videogrep
 tutorial: https://lav.io/notes/videogrep-tutorial/  
 code: https://github.com/antiboredom/videogrep/tree/master  
 videos: https://antiboredom.github.io/videogrep/  
+
+
+### python tutorials here
+[python basics](./introduction/README.md)  
+[python scraping](./scrape/README.md)  
+
+### python tutorials online
+RealPython => need to create free account   
+[HOW TO work with python in the terminal or with a code editor](https://realpython.com/interacting-with-python/)   
+[Variables](https://realpython.com/python-variables/)   
+[User input from terminal/keyboard](https://realpython.com/python-keyboard-input/)   
+[if/elif/else](https://realpython.com/courses/python-conditional-statements/)
+[Adding strings](https://realpython.com/python-string-concatenation/)
+[Data types](https://realpython.com/python-data-types/)  
+
+
+### artisitc references
+[presentation - slides](./presentation_en.pdf)