Overly aggressive namespace skipping

[phdum]

Hi,

I was trying to wrap a file with functions contained a namespace simple_ops. Although I added the -N simple_ops flags when running c++2py, none of the functions in the namespace were wrapped.

The origin of this is that there is a namespace filtering in cpp2desc.py (line 72; I'm using the cpp2py now included in triqs 2.2.x).

    namespaces_to_skip = ['std', 'boost', 'detail', 'impl']

Because "simple_ops" contains "impl" as a substring, this is filtered out. (If I set namespaces_to_skip = [] everything is done correctly.) This is probably not the desired behavior and seems a much to aggressive filtering.

Especially since we manually have to specify which namespaces to wrap via the '-N' command, is this filtering really needed?

In any case, it would be nice to get a message if namespaces are being skipped. It took a while to understand what went wrong.

Thanks!

Philipp

[Wentzell]

@phdum Thank you for pointing this out!
I agree that this behavior is too aggressive.
We should refrain from filtering any namespaces except for maybe the exact match std.
Additional filtering should be left to the user.

Note that in general you do not have to specify any namespaces with -N.

We will take your issue into account in the changes for the upcoming Python3 port.