[Python-ideas] Dump .pyo and the "optimize" flag

[Georg Brandl]

Am 03.02.2010 01:11, schrieb Ron Adam:
> 
> 
> Antoine Pitrou wrote:
>> Larry Hastings <larry at ...> writes:
>>> I ask you: why gunk up the filesystem with two files when one would do?  
>>> I propose we change the pyc file so it can contain multiple code 
>>> objects.
>> 
>> I think we should dump the lie about "optimized" bytecode when the only
>> optimization is that we strip some docstrings, disable asserts and set __debug__
>> to False.
>> 
>> There should be only one possible bytecode file (XXX.pyc), and we could provide
>> a "strip" tool (and/or corresponding function in the compileall module) for
>> people for whom minimizing bytecode file size is important.
>> 
>> Also, it would be interesting to know who bothers to use "python -O" (or "-OO").
>> I know I never use it.
> 
> If there was an easy way to get info from python on the status and location
> of the bytecode files it uses, it might not be so bad.
> 
>> python -stat module.py
>    # python version
>    # list of bytecode files, type, location
> 
> Then having .pyc also be used for optimized byte code could work.
> 
> On another note, it always seemed a bit backwards to me that the -OO wasn't
> the default output and if it were, we would have options to run in debug
> mode which would include 'docstrings', 'if debug ...' statements, and
> 'assert ...'  statements, for testing purposes.  <shrug>

Removal of docstrings should be separate from the rest, though.  Quite a few
programs would stop working properly without docstrings, with the docstring
being used as a kind of easily introspectable annotation to a class or function.

Georg

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