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[3.7] bpo-38293: Allow shallow and deep copying of property objects (GH-16438) #17968

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Merged
merged 1 commit into from
Jan 12, 2020

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@miss-islington miss-islington commented Jan 12, 2020

Copying property objects results in a TypeError. Steps to reproduce:

>>> import copy
>>> obj = property()
>>> copy.copy(obj)

This affects both shallow and deep copying.
My idea for a fix is to add property objects to the list of "atomic" objects in the copy module.
These already include types like functions and type objects.

I also added property objects to the unit tests test_copy_atomic and test_deepcopy_atomic. This is my first PR, and it's highly likely I've made some mistake, so please be kind :)

https://bugs.python.org/issue38293
(cherry picked from commit 9f3fc6c)

Co-authored-by: Guðni Natan Gunnarsson 1493259+GudniNatan@users.noreply.github.com

https://bugs.python.org/issue38293

…GH-16438)

Copying property objects results in a TypeError. Steps to reproduce:

```
>>> import copy
>>> obj = property()
>>> copy.copy(obj)
````

This affects both shallow and deep copying.
My idea for a fix is to add property objects to the list of "atomic" objects in the copy module.
These already include types like functions and type objects.

I also added property objects to the unit tests test_copy_atomic and test_deepcopy_atomic. This is my first PR, and it's highly likely I've made some mistake, so please be kind :)

https://bugs.python.org/issue38293
(cherry picked from commit 9f3fc6c)

Co-authored-by: Guðni Natan Gunnarsson <1493259+GudniNatan@users.noreply.github.com>
@miss-islington
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@GudniNatan: Status check is done, and it's a success ✅ .

@miss-islington miss-islington merged commit 4be9726 into python:3.7 Jan 12, 2020
@miss-islington miss-islington deleted the backport-9f3fc6c-3.7 branch January 12, 2020 18:00
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5 participants