The tone that people take when filing bug reports for what is basically free software is reprehensible. People are doing work for FREE to benefit you, and you take a tone with them like you are a prince and they are your royal goblet holders? Who taught these human beings their manners?
I totally understand the frustration when you write a large system in Python and then the Python committee makes a breaking change that makes your life very difficult. However, you didn't pay for Python! These sorts of changes should be expected, and if you didn't expect it, you are the fool. And in any case, you aren't paying these people a cent, so speak politely to them. You are basically a charity case from their perspective.