Know of Substantial Apps Written in Python?

[Dry Ice]

> I'm not sure why the prejudice against using a language to drive C (or
> C++ or Fortran) modules.  [...]

No prejudice implied.  Such a use is entirely reasonable.

I am evaluating, however, Python-as-development-language,
not as glue for modules which offer the bulk of the
functionality in a project.

For years many accused Visual Basic of being a "toy"
language (like "real" coders only use C, dude) because
to do FAST stuff one really had to link to something).

(Then the OO people called it a toy for other reasons.
Now that it does lots of OO stuff, it's a toy because it's
not cross-platform.  Truth is, I see some Visual Basic
everywhere I look.  Particularly, with considerable
amusement, when I'm accused of prejudice against
RAD languages as glue.)