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Catch KBHit fail and disable on non-terminal runs #15

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Catch KBHit fail and disable on non-terminal runs #15

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10 changes: 7 additions & 3 deletions rlgym_ppo/learner.py
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Original file line number Diff line number Diff line change
Expand Up @@ -209,8 +209,12 @@ def _learn(self):
"""

# Class to watch for keyboard hits
kb = KBHit()
print("Press (p) to pause (c) to checkpoint, (q) to checkpoint and quit (after next iteration)\n")
try:
kb = KBHit()
print("Press (p) to pause (c) to checkpoint, (q) to checkpoint and quit (after next iteration)\n")
except:
# Disable if error initializing (job not running in a terminal probably)
kb = None

# While the number of timesteps we have collected so far is less than the
# amount we are allowed to collect.
Expand Down Expand Up @@ -270,7 +274,7 @@ def _learn(self):
# p: pause, any key to resume
# c: checkpoint
# q: checkpoint and quit
if kb.kbhit():
if kb is not None and kb.kbhit():
c = kb.getch()
if c == 'p': # pause
print("Paused, press any key to resume")
Expand Down