Ross McKerchar wrote:
> I've noticed that the GetModuleForTypelib always (or at least once per
> program-run) calls AddModuleToCache (both in win32com.client.gencache).
>
> This results in an attempt to write to the pickled dictionary
> gen_py/dicts.dat. Unfortunately the program I'm writing that uses
> GetModuleForLib is run by users who dont have write access to the Python
> directory. I've ensured early binding for the type library I'm
> interested in by setting it up in the application installer, so from my
> limited understanding of win32com dicts.dat cache should already contain
> my module.
>
> My program appears to run fine as a normal user with a nasty hack
> ("win32com.client.gencache.AddModuleToCache.func_defaults=(1,False)")
> that prevents the cache getting written to.
>
> So, I'd be grateful of anyone with a more solid understanding than me could
> a) Confirm that disabling the dicts.dat cache write will work fine and
> not break randomly in the future
> b) Let me know if there's a more robust way of preventing the cache
> write (there appears to be code supporting freezing functionality that
> should help but I couldn't figure out a neat way of using it)
I think you should read
http://www.py2exe.org/index.cgi/UsingEnsureDispatch. I happened to have
the same problem generating the cache of an OCX library. I implemented a
function which before py2exe'ing my binary would make sure the local
python cache is completely removed. Also added the wiki code to my own.
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