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ValueError - arg is an empty sequence - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: General Coding Help (https://python-forum.io/forum-8.html) +--- Thread: ValueError - arg is an empty sequence (/thread-15015.html) |
ValueError - arg is an empty sequence - jojotte - Dec-30-2018 Hi I'm trying to take the two lowest values off a list and then stop. So far, the two solutions I have return the same error message i.e. ValueError: min() arg is an empty sequence. I only get this error message if using "while". The error goes away if I use "if"...(which adds to the confusion...!) Thoughts? ![]() Thanks! scores = [2,5,52,1,5,23,5,5,6,3,3] itemsInScores = len(scores) minimumItemsInScores = len(scores) - 2 lowerValueinScores = 0 indexOfMinimumValue = 0 while itemsInScores > minimumItemsInScores : #option1 lowerValueinScores = min(scores) indexOfMinimumValue = scores.index(lowerValueinScores) scores.pop(indexOfMinimumValue) #option2 #scores.pop(scores.index(min(scores))) RE: ValueError - arg is an empty sequence - Larz60+ - Dec-30-2018 scores = [2,5,52,1,5,23,5,5,6,3,3] print('scores prior to elimination: {}\n'.format(scores)) for x in range(2): scores.pop(min(range(len(scores)), key=scores.__getitem__)) print('scores after elimination: {}\n'.format(scores))results:
RE: ValueError - arg is an empty sequence - jojotte - Dec-31-2018 looks good, thanks! |