PEP8-compliant changes in `test_event.py`
PEP8-compliant changes in `test_event.py`

I changed a few of non-PEP8 "mistakes":
* too many blank lines before method definition
* wrong indentation of arguments in long arguments lists
* missing spaces around commas

pbanaszkiewicz/amy,vahtras/amy,swcarpentry/amy,shapiromatron/amy,pbanaszkiewicz/amy,pbanaszkiewicz/amy,shapiromatron/amy,swcarpentry/amy,swcarpentry/amy,vahtras/amy,wking/swc-amy,wking/swc-amy,wking/swc-amy,shapiromatron/amy,wking/swc-amy,vahtras/amy