Support frozendict in various builtins

[rhettinger]

The type, str.maketrans, and bytes.maketrans builtins should support frozendict. The issues with exec and eval were reported in a separate issue.

>>> type("MyClass", (), {"x": 10})
<class '__main__.MyClass'>
 
>>> type("MyClass", (), frozendict({"x": 10}))
Traceback (most recent call last):
 File "<pyshell#30>", line 1, in <module>
 MyClass = type("MyClass", (), frozendict({"x": 10}))
TypeError: type.__new__() argument 3 must be dict, not frozendict

>>> str.maketrans(dict({'a': 'A'}))
{97: 'A'}

>>> str.maketrans(frozendict({'a': 'A'}))
Traceback (most recent call last):
 File "<pyshell#23>", line 1, in <module>
 str.maketrans(frozendict({'a': 'A'}))
TypeError: if you give only one argument to maketrans it must be a dict

Linked PRs

• gh-145118: Add frozendict support to type() #145124
• gh-145118: Add frozendict support to str.maketrans() #145129

[vstinner]

The type, str.maketrans, and bytes.maketrans builtins should support frozendict.

It's now done, I close the issue.