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summary
Shows that Python accepts surprising Unicode identifier characters by inspecting CPython tokens, the grammar, PEP 3131, Unicode DerivedCoreProperties and unicode data, grepping and running under gdb, writing a small parser to extract XID_Start/XID_Continue ranges, and even recompiled CPython to test behavior. Builds a quick script and an altered interpreter so exotic characters (dozens of letters, modifiers and symbols) become valid names, and demonstrates that normalized identifiers via NFKC make some unexpected forms work.
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chapters (9)
- 0:00Introduction
- 2:48First day trivial task
- 7:08Ellipsis syntax
- 15:36Python grammar parser
- 21:10Debugging ellipsis assignment
- 26:51Unicode identifiers PEP 3131
- 33:14Normalizing Python identifiers
- 35:01Python any identifier
- 36:53Conclusion
