Remove the dependency on astor for Pythons ≥ 3.9 #1999
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scauligi
reviewed
Mar 16, 2021
peaceamongworlds
approved these changes
Mar 16, 2021
scauligi
approved these changes
Mar 17, 2021
hy/_compat.py
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| if PY3_9: | ||
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| import ast, math, cmath |
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The math and cmath imports appear irrelevant.
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Yep, they're leftovers.
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| import ast, math, cmath | ||
| class Unparser(ast._Unparser): | ||
| # Work around some limitations of Python's `ast.unparse`. |
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Add a reference to python/cpython#24897. Since it's going to be backported to 3.9, we can eventually remove this workaround once it lands.
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Python 3.9 added
ast.unparse, which can do most of the work. It has some bugs that I fixed inastor, which I've worked around here, but I've submitted a patch to CPython to fix them for real (python/cpython#24897).