GridBagSizer and AddGrowableRow()

It seem that when using a wx.GridBagSizer, setting AddGrowableRow()  or
AddGrowableCol() for a row or column which contains nothing will throw
a Python invalid index error:
Traceback (most recent call last):  File "foo.py", line 67, in
<module>    app = MyApp(0)  File "/usr/lib/python2.7/dist-packages/wx-
3.0-gtk3/wx/_core.py", line 8628, in __init__    self._BootstrapApp() 
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_core.py", line
8196, in _BootstrapApp    return _core_.PyApp__BootstrapApp(*args,
**kwargs)  File "foo.py", line 59, in OnInit    self.frame =
MyFrame(None, wx.ID_ANY, "")  File "foo.py", line 27, in
__init__    self.__do_layout()  File "foo.py", line 48, in
__do_layout    grid_sizer_1.AddGrowableRow(2)  File
"/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_core.py", line 15343,
in AddGrowableRow    return _core_.FlexGridSizer_AddGrowableRow(*args,
**kwargs)wx._core.PyAssertionError: C++ assertion "!m_rows || idx <
(size_t)m_rows" failed at ../src/common/sizer.cpp(1967) in
AddGrowableRow(): invalid row index
If a widget is expanded into a row or column, as supported in a
GridBagSizer, this counts for populating the rows and columns involved.
Populating empty grid slots with blank panels will let the code run,
which is probably the right way to solve this problem, but wxGlade
should remove from the generated code any calls to AddGrowableRow()
and/or AddGrowableCol() from rows or columns which have no content
under this situation.  If an unpopulated row or column is between
populated rows or columns, the problem is avoided. Alternatively,
something should be mentioned in the manual about this so that folks
will have a heads-up about this problem. Simply putting something in
every slot will avoid the issue, but wxGlade shouldn't ever generate
code which throws this kind of error. Maybe this is a wxPython bug, I
don't know.
Sorry if this has been addressed before. I don't use wxGlade a lot and
don't follow this mailing list very closely, but this situation bit me
and it took me a while to troubleshoot it.

-- 
Lindsay Haisley       |  "Humor will get you through times of no humor
FMP Computer Services |      better than no humor will get you through
512-259-1190          |         times of humor."
http://www.fmp.comom    |            - Butch Hancock

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