python - 是否可以在 python 2.6 中取消“关键字参数重复”异常？

Question

该代码在 python 2.5 上运行，但在 2.6 上因此异常而失败

Answer 1

该异常是源代码中的语法错误，修复它的唯一方法是更正函数调用。

Python 2.5.2 (r252:60911, Jan 24 2010, 14:53:14)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> def f(x): pass
...
>>> f(x=1, x=2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: f() got multiple values for keyword argument 'x'
>>> f(x=1, **{'x': 2})
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: f() got multiple values for keyword argument 'x'

Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> def f(x): pass
...
>>> f(x=1, x=2)
  File "<stdin>", line 1
SyntaxError: keyword argument repeated
>>> f(x=2, **{'x': 1})
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: f() got multiple values for keyword argument 'x'