Hi all, a lot of times the following pattern pops out in Python code:
try: somecode except SomeException: pass A very simple example could be if you want to process a list that may be empty def process_list(lst): try: lst[0] = lst[0] + 1 except IndexError: pass or in more complex cases in which however an exception just signals that there is nothing to do there. Converting the code to a non-EAFP version, for example if len(lst) != 0: lst[0] = lst[0] + 1 is in my opinion generally against the Python nature, since it relies on a specific check on the object, instead of trusting the object as being able to either satisfy the request or raise an exception. That is, this solution is non-polymorphic. In such cases sometimes ABC may help, but generally speaking they it is not always the case of being an instance of a given ABC or not. The problem here is if the code raises an exception or not. Would it be feasible to propose a short syntax like this? pass SomeException: somecode where the above example would become: pass IndexError: lst[0] = lst[0] + 1 I could not find if such a syntax has been already discussed elsewhere, so please let me know if this is the case. Otherwise, what do you think about it? Thank you Leonardo Leonardo Giordani @tw_lgiordani <http://twitter.com/tw_lgiordani> - lgiordani.com My profile on About.me <http://about.me/leonardo.giordani> - My GitHub page <https://github.com/lgiordani>
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