RuntimeError: Set changed size during iteration #481
Description
tqdm is throwing a set changed size during iteration exception intermittently:
Exception in thread Thread-7:
Traceback (most recent call last):
File "/usr/lib/python3.6/threading.py", line 916, in _bootstrap_inner
self.run()
File "/home/vagrant/regex/lib/python3.6/site-packages/tqdm/_tqdm.py", line 144, in run
for instance in self.tqdm_cls._instances:
File "/usr/lib/python3.6/_weakrefset.py", line 60, in __iter__
for itemref in self.data:
RuntimeError: Set changed size during iteration