Eric V. Smith <e...@trueblade.com> added the comment:
I agree that could probably be simplified, if the format_spec is constant (which it need not be). >>> ast.dump(ast.parse('f"is {x:d}"')) "Module(body=[Expr(value=JoinedStr(values=[Str(s='is '), FormattedValue(value=Name(id='x', ctx=Load()), conversion=-1, format_spec=JoinedStr(values=[Str(s='d')]))]))])" But: ast.dump(ast.parse('f"is {x:{length+1}d}"')) "Module(body=[Expr(value=JoinedStr(values=[Str(s='is '), FormattedValue(value=Name(id='x', ctx=Load()), conversion=-1, format_spec=JoinedStr(values=[FormattedValue(value=BinOp(left=Name(id='length', ctx=Load()), op=Add(), right=Num(n=1)), conversion=-1, format_spec=None), Str(s='d')]))]))])" ---------- nosy: +eric.smith _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39760> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com