* first commit, appends suggestion into errorhandler
* catch only ArithmeticErrors, scoped try clause, and using raise _ from
* fixed unused import
* formatting
* stepped through each logical call to ensure functional parity; added refactoring suggestions
* Revert "stepped through each logical call to ensure functional parity; added refactoring suggestions"
This reverts commit 77e99c97d6.
I took PYTHON-3739 and accidentally super-imposed it onto this one. Reverting to fix
* place the msg check in the excxeption handle
* cleaned up some code callsites. applied refactor changes. made a more generic error checking test
* edited code comment
* Update test/test_bson.py
rename just to retrigger test suite
* DECREF -> XDECREF and formatting
