Python 4.0 ((install))

: Some features currently considered "future-dated" (like mandatory postponed evaluation of type annotations) are technically scheduled to become default in a hypothetical version 4.0.

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Elias froze. The fear of every Python developer since 2008 was the transition from 2 to 3. The community had fractured, libraries died, and chaos reigned. They had promised that Python 4 would run legacy code perfectly. python 4.0