python: Handle slight differences between Python 2 and 3.
* lang/python/helpers.c (pyDataWriteCb): Handle Python integers being returned on Python 2. (pyDataSeekCb): Likewise. * lang/python/pyme/core.py (Data.__init__): Fix testing for string argument. (Data.new_from_filepart): Likewise. * lang/python/pyme/util.py (is_a_string): New function. * lang/python/tests/t-encrypt-large.py (read_cb): Force evaluation of generator. * lang/python/tests/t-idiomatic.py: Partly skip test on Python 2. * lang/python/tests/t-verify.py (check_result): Here, the difference between 2 and 3 really matters. We cannot change the char * conversion in Python 2 without breaking all existing applications, and using bytestrings in Python 3 would be very inconvenient.
- Signed-off-by: Justus Winter <justus@g10code.com>