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Support -d flag in the new parser #84927
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Python has a (mostly unknown) -d flag that can only be used in debug builds that emit some debug output for the old parser. The new parser does not support such flag. This is very useful when playing with the grammar as it helps enormously to inspect how the parser has behaved and what rules have accepted/rejected in its path. |
A piece of the output for the string "1 + 1" with PR 20340:
✓ simple_stmt[0-4]: small_stmt !';' NEWLINE |
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
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