11 Aug
2015
11 Aug
'15
4:24 a.m.
PEP 498: """ Leading whitespace in expressions is skipped https://www.python.org/dev/peps/pep-0498/#id28 Because expressions may begin with a left brace ('{'), there is a problem when parsing such expressions. For example:
f'{{k:v for k, v in [(1, 2), (3, 4)]}}' '{k:v for k, v in [(1, 2), (3, 4)]}'
""" For me, this example is crazy. You should not add a special case (ignore spaces) just to support a corner case. This example can easily be rewritten using a temporary variable and it makes the code simpler. items={k:v for k, v in [(1, 2), (3, 4)]; f'{items}' Seriously, a dict-comprehension inside a f-string should be considered as an abuse of the feature. Don't you think so? Victor