Don't mask TwythonStreamer exceptions

[remram44]

Exceptions in handlers or on_success which subclass ValueError would previously be caught and reported as a JSON decoding problem, and on_error() would be called (with status_code=200).

Note that, unrelated to this, you might want to catch handlers errors somehow, since it would certainly interrupt streaming.

[michaelhelmick]

Only question is, what is the difference of calling on_error where you placed it and calling it where it originally is?

[remram44]

See the description: the difference is that we don't mask exceptions in handlers or in on_success;

try: blocks catch the exception of the code that is in the try: block. If you want to catch the exceptions from decoding json, only the decoding json part should be in the try block.

The else: clause happens if there is no exception.

See the documentation for try.

[michaelhelmick]

For some reason I misread and have been, for some time, under the impression that else was always hit (even if an exception is raised) My apologies. Thanks for the fix!

[michaelhelmick]

Twython 3.1.1 is now available via PyPi!

pip install -I twython