a TypeError when printing events.

[miguelgondu]

First of all, thanks for maintaining this code. It's a great tool, now that SC2 is becoming the testbed for RTS AI.

There seems to be a bug when printing UnitBornEvents. I loaded a replay (that I link to) and tried to print all the events with a for loop:

replay1 = sc2reader.load_replay('solar1.SC2Replay', load_map=True)
for event in replay1.events:
    print(event)

and the first two events (PlayerSetupEvents) print just fine, but once they come to the first UnitBornEvents (the ones that concern mineral fields, for example), I get the following TypeError:

---

TypeError Traceback (most recent call last)
in ()
1 for event in replay1.events:
----> 2 print(event)

~/.virtualenvs/StarCraft2_venv/lib/python3.5/site-packages/sc2reader/events/tracker.py in str(self)
292
293 def str(self):
--> 294 return self._str_prefix() + "{0: >15} - Unit born {1}".format(self.unit_upkeeper, self.unit)
295
296

TypeError: non-empty format string passed to object.format

---

Checking the variables that are to be formatted into the string, it seems that self.unit_upkeeper is None for these particular UnitBornEvents. It may be a bug.

Thanks!

[StoicLoofah]

@miguelgondu does the latest version address your problem?

[StoicLoofah]

Closing this out as completed. @miguelgondu you can re-open if you still notice issues