How to catch these kind of bugs in Python?
Is there anyway to catch the following type of bug in Python code: message = 'This is a message' # some code # some more code if some_obscure_condition: nessage = 'Some obscure condition occured.' # yet more code # still more code print message In the above example, message should be set to 'Some obscure condition occured.' if some_obscure_condition is True. But due to a lack of sleep, and possibly even being drunk, the programmer has mistyped message. These types of bugs would easily be caught in languages that have a specific keyword or syntax for declaring variables before use. I'm still fairly new to using Python on a more than casual basis, so I don't know if Python has anyway to help me out here. -- Arcadio -- http://mail.python.org/mailman/listinfo/python-list
Re: How to catch these kind of bugs in Python?
asincero [EMAIL PROTECTED] writes: In the above example, message should be set to 'Some obscure condition occured.' if some_obscure_condition is True. But due to a lack of sleep, and possibly even being drunk, the programmer has mistyped message. These types of bugs would easily be caught in languages that have a specific keyword or syntax for declaring variables before use. I'm still fairly new to using Python on a more than casual basis, so I don't know if Python has anyway to help me out here. Unit testing, running pylint, pychecker, etc. -- Jorge Godoy [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
Re: How to catch these kind of bugs in Python?
asincero wrote: Is there anyway to catch the following type of bug in Python code: message = 'This is a message' if some_obscure_condition: nessage = 'Some obscure condition occured.' print message In the above example, message should be set to 'Some obscure condition occured.' if some_obscure_condition is True. But due to a lack of sleep, and possibly even being drunk, the programmer has mistyped message. These types of bugs would easily be caught in languages that have a specific keyword or syntax for declaring variables before use. There are tools that help (e.g. pychecker), but there are a few things to consider: 1) If the programmer is sleepy/drunk, you're going to have other bugs too (logical errors, not handling all cases, etc.) 2) Other languages would catch *some* types of these bugs, but would still miss some of them (I can see a sleepy programmer also using the wrong variable instead of just mistyping the right one). So while a tool might assist, it's worth your while to also consider some strategies for tackling the above two problems and, in the process, the sleepy-programmer-mistype bugs will get caught as well. Some type of testing is probably the best answer - be it reusable unit tests or, at the very least, some interactive testing of code snippets (which Python makes really easy to do). -Dave -- http://mail.python.org/mailman/listinfo/python-list
Re: How to catch these kind of bugs in Python?
asincero wrote: Is there anyway to catch the following type of bug in Python code: message = 'This is a message' # some code # some more code if some_obscure_condition: nessage = 'Some obscure condition occured.' # yet more code # still more code print message In the above example, message should be set to 'Some obscure condition occured.' if some_obscure_condition is True. But due to a lack of sleep, and possibly even being drunk, the programmer has mistyped message. These types of bugs would easily be caught in languages that have a specific keyword or syntax for declaring variables before use. I'm still fairly new to using Python on a more than casual basis, so I don't know if Python has anyway to help me out here. The keyword is obscure condition. The solution is to use a coverage tool and create unit tests that give you 100% code coverage. -- http://mail.python.org/mailman/listinfo/python-list
