Inada Naoki <songofaca...@gmail.com> added the comment:
@Serhiy
> Do you mean sharing values of co_code and co_lnotab between code objects of
> the same module?
Yes.
> How much memory does this save (in absolute and relative value)?
Maybe 1~3%, but I am not sure. I am more interested in reducing number of
objects, because it will reduce import time.
Additionally, co_code is used while executing code. Unlike other cold data
(e.g. docstring, annotations), sharing co_code will improve CPU cache
utilization.
> Which functions have the same co_code?
For example,
```
# logging/__init__.py
@property
def manager(self):
return self.logger.manager
...
@property
def name(self):
return self.logger.name
```
Such simple functions are very common in OO-style code.
@Mark Shannon
Sure.
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<https://bugs.python.org/issue42217>
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