hai shi <[email protected]> added the comment:
> It looks like you imported the functools module twice and have two different
> classes functools.partial. When you try to import one of them, you found the
> other one.
You are right. Serhiy:)
The key point is `import_helper.import_fresh_module()`.
```
import functools
from test.support import import_helper
partial = functools.partial
new_functools = import_helper.import_fresh_module('functools',
fresh=['_functools'])
new_partial = new_functools.partial
assert(partial == new_partial)
```
Succeed in master, failed in PR23405.
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<https://bugs.python.org/issue42410>
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