in libmozevent/mercurial.py [0:0]
def is_eligible_for_retry(self, error):
"""
Given a Mercurial error message, if it's an error likely due to a
temporary connection problem, consider it as eligible for retry.
"""
error = error.lower()
return any(
eligible_message in error for eligible_message in self.ELIGIBLE_RETRY_ERRORS
)