Set python command option -OO

[Elliot Garbus]

How do I set the python command line option -OO.

The objective is to disable assert statements and remove docstrings.

Looking here: Using Spec Files — PyInstaller 6.3.0 documentation

It appears the -OO option is not supported.  Is this correct?

[bwoodsend]

You can use:

exe = EXE( pyz, a.scripts, [('O', None, 'OPTION'), ('O', None, 'OPTION')], ...

but, whilst it does set sys.flags.optimize to 2, it doesn’t remove either the assertions or docstrings since they need to happen at compile time. You used to be able to use python -OO -m PyInstaller your-code.py but pycparser (one of PyInstaller’s indirect Windows-only dependencies) doesn’t allow it now. That said, -OO mode is a waste of time. Since the docstrings are small and in a PyInstaller application get compressed, you’re looking at about ~0.1% reduction in application size.

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[Elliot Garbus]

Thank you - that is very helpful.

The desire to remove doc-strings has to do with their desire to keep things "more secure".  

I'm also building a portion of the app in cython, for the same reason.  This is a direct request of my client.

I'll look for a different path to disable asserts and remove doc-strings.  I'm open to suggestions!

Thanks again!

[Elliot Garbus]

This worked:  python -OO -m PyInstaller --clean -y .\my-specfile.spec