Adding exception to the main section fails when using MultiSectionFactory

[Riyaz Haque]

Hi,

I am using MultiSectionFactory to split the generated code. However there is one common exception across all sections that I intend to add to the main section.

mod = Module(module_name)
section_list = ["foo", "bar", "baz"]
out = GeomMultiSectionFactory(module_name, section_list)

# Common exception
excp = mod.add_exception(name="exception", custom_name = "PyExc_RuntimeError", foreign_cpp_namespace="std", message_rvalue="%(EXC)s.what()")

for section in section_list:
mod.begin_section(section)
# do something
mod.end_section(section)

mod.generate(out, module_name)

This gives me the following pybindgen error:
Traceback (most recent call last):
  File "Main.py", line 83, in <module>
    mod.generate(out, module_name)
  File "pybindgen/pybindgen/module.py", line 894, in generate
    self.do_generate(sink_manager, module_file_base_name)
  File "pybindgen/pybindgen/module.py", line 779, in do_generate
    sink, header_sink = out.get_code_sink_for_wrapper(exc)
  File "pybindgen/pybindgen/module.py", line 147, in get_code_sink_for_wrapper
    section_sink = self.multi_section_factory.get_section_code_sink(section)
  File "/home/utils.py", line 49, in get_section_code_sink
    return self.section_sinks[section_name]
KeyError: '__main__'

Changing the if-check
'if section is None' in the method get_code_sink_for_wrapper(self, wrapper) in module.py
to
'if section == "__main__"' fixes the problem