Keep retrying a function that involves a database transaction until it succeeds. This only retries due to serialization failures; all ot

Return a list of preferred items for the given annotator to look at next. This method uses a variety of strategies to try to select good can

Convert workbook sheet cells into integers if they are equal to integer values and convert everything to a string. The xlrd library seem

Send a batch of emails. This function takes a list [(to_address, subject, body)].