Re: [gnulib-tool-py] func_warning

[address@hidden]

Hi Bruno,

I suggest to rename GLError to GLErrorHandler to raise Pythonic errors. GLError 
now becomes a class, which can take there args in __init__:

1. errno: as in old GLError.
2. errinfo: as in old GLError.
3. fatal: True or False. Default is True. Non-fatal error means that this is 
just a warning.
4. style: 0 or 1. 0 means old gnulib-tool style, 1 means that Pythonic error is 
raised using GLErrorHandler. Default is 0.

If we add the last two arguments to GLMode class, we can easily switch 
error-level and style of errors, e.g. users can use some parameter like -Werror 
as you've written. That will be especially useful in the future, but will be 
useful even now. What do you think?