[issue37003] ast unparse does not support f-string new debug format.
Pablo Galindo Salgado
report at bugs.python.org
Wed May 22 14:17:25 EDT 2019
Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:
> Notice that test_tools will fail if f'{x=}' becomes f'x={x!r}'
I arrived at the wrong conclusion as Matthias points out.
>>> import ast
>>> ast.dump(compile("f'{x=}'","<string>","exec",ast.PyCF_ONLY_AST))
"Module(body=[Expr(value=JoinedStr(values=[FormattedValue(value=Name(id='x', ctx=Load()), conversion=114, format_spec=None, expr_text='x=')]))], type_ignores=[])"
>>> ast.dump(compile("f'{x!r}'","<string>","exec",ast.PyCF_ONLY_AST))
"Module(body=[Expr(value=JoinedStr(values=[FormattedValue(value=Name(id='x', ctx=Load()), conversion=114, format_spec=None, expr_text=None)]))], type_ignores=[])"
if expr_text is removed those strings will be the same, so we will be ok. Sorry for the confusion.
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