November 2018
Beginner
304 pages
7h 35m
English
Content preview from Learn Programming in Python with Cody Jackson
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Python versions
Two main version lines exist for Python: Python 2 and Python 3. Python 2 is the legacy line (version 2.7.15, at the time of writing); while it is still used for some new projects nowadays, it is predominately seen in old software that either can't or won't be upgraded to the Python 3 line. Python 2.7 is the last major release number for this line; incremental upgrades will be provided to back-port Python 3 features or for security patching, but no major features are written for it.
Python 3 (version 3.7.0, as of this writing) is the main development line, and all new features are added here first. Many features in Python 3 are not available in Python 2, or are renamed, so significant effort must be made to convert one version ...
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