fixup! Fix bad error code handling

fosdem_video_progress.py

@@ -7,7 +7,7 @@ from datetime import datetime
 from dataclasses import dataclass
 from collections import defaultdict
 from pathlib import Path
-import sys
+import traceback
 
 api_url = r'https://review.video.fosdem.org/api/v1/event/1/overview'
 poll_rate = 10*60 # seconds
@@ -56,7 +56,7 @@ def main():
 			ts.jobstates |= jobstates.keys()
 		except RuntimeError as e:
 			print('Could not get/save data.')
-			sys.print_exc()
+			traceback.print_exc()
 
 		# Save the pickle
 		# Should probably save elsewhere and do atomic rename, but whatever.