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This adds a `feature_version` flag to `ast.parse()` (documented) and `compile()` (hidden) that allow tweaking the parser to support older versions of the grammar. In particular if `feature_version` is 5 or 6, the hacks for the `async` and `await` keyword from PEP 492 are reinstated. (For 7 or higher, these are unconditionally treated as keywords, but they are still special tokens rather than `NAME` tokens that the parser driver recognizes.) https://bugs.python.org/issue35975 |
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| .. | ||
| pgen | ||
| acceler.c | ||
| asdl.py | ||
| asdl_c.py | ||
| grammar1.c | ||
| listnode.c | ||
| myreadline.c | ||
| node.c | ||
| parser.c | ||
| parser.h | ||
| parsetok.c | ||
| Python.asdl | ||
| token.c | ||
| tokenizer.c | ||
| tokenizer.h | ||