ueshin opened a new pull request, #49631:
URL: https://github.com/apache/spark/pull/49631
### What changes were proposed in this pull request?
Fixes the usage of `Column.__new__`.
### Why are the changes needed?
Currently `Column.__init__` is called in `Column.__new__`, but it will call
`__init__` twice.
```py
>>> class A:
... def __new__(cls, *args, **kwargs):
... print(f"__NEW__: {args}, {kwargs}")
... obj = object.__new__(cls)
... obj.__init__(*args, **kwargs)
... return obj
... def __init__(self, *args, **kwargs):
... print(f"__INIT__: {args}, {kwargs}")
...
>>> A(1,2,3, k=4)
__NEW__: (1, 2, 3), {'k': 4}
__INIT__: (1, 2, 3), {'k': 4}
__INIT__: (1, 2, 3), {'k': 4}
<__main__.A object at 0x102ccab90>
>>> class B:
... def __new__(cls, *args, **kwargs):
... print(f"__NEW__: {args}, {kwargs}")
... return object.__new__(cls)
... def __init__(self, *args, **kwargs):
... print(f"__INIT__: {args}, {kwargs}")
...
>>> B(1,2,3, k=4)
__NEW__: (1, 2, 3), {'k': 4}
__INIT__: (1, 2, 3), {'k': 4}
<__main__.B object at 0x102b2b970>
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
The existing tests should pass.
### Was this patch authored or co-authored using generative AI tooling?
No.
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