peval doesn't propagate constants stored in dicts

[KOLANICH]

m = ast.parse("""
dic = {"name": "aa", "version": 10}
setup(name=dic["name"], version=dic["version"])
""")

import peval
from peval.components import fold
r, v = fold(m, {})
print(astor.to_source(r, indent_with='\t',), v)

My use case is automatic safe parsing of metadata from setup.py files. The plan is simple: process the AST with a constant and copy propagation optimizer, then extract the data from setup call.

Also: I had to comment out some asserts in expression.py.

[fjarri]

Unfortunately I haven't had time to work on it in the last couple of years, so the support for Py3.9+ is uncertain, and some features are naturally missing. I can't promise that I will look at it right away, but I will try to find time this or next week.

[KOLANICH]

I can't promise that I will look at it right away, but I will try to find time this or next week.

No problem, thanks.

[KOLANICH]

Also: python/cpython#98463