1. Welcome to Python. Python Software Foundation.
https://www.python.org
.
2. Spyder: The Scientific Python Development Environment.
https://spyder-ide.org
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3. IPython Documentation.
https://ipython.readthedocs.io
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4. The Python Standard Library. Python Software Foundation.
https://docs.python.org/library
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5. Python Tutorial. Python Software Foundation.
https://docs.python.org/tutorial/index.html
.