python Programming Glossary: setdefaulthttp://stackoverflow.com/questions/1151658/python-hashable-dicts item assignment .format self.__class__.__name__ def setdefault self args kwargs raise TypeError 0 does not support item assignment..
Python dict.setdefault uses more memory? [closed] http://stackoverflow.com/questions/11982368/python-dict-setdefault-uses-more-memory dict.setdefault uses more memory closed I was writing some Python code that.. something like this values for element in iterable values.setdefault element.name .append element Because I could have sorted the.. mistake in the second approach python memory dictionary setdefault share improve this question Your original code every time..
http://stackoverflow.com/questions/1491037/mapping-stdmap-to-python def values self return v for k v in self.__srtlst__ def setdefault self key default index bisect self.__srtlst__ key if index len..
Converting list of tuples in python to dictionary http://stackoverflow.com/questions/19854442/converting-list-of-tuples-in-python-to-dictionary this question Use either defaultdict list or dict.setdefault ... there's not much difference in performance or readability.. so it's really a matter of taste. I prefer using setdefault likes for k v in friendface likes.setdefault k .append v share..
Python - Is a dictionary slow to find frequency of each character? http://stackoverflow.com/questions/2522152/python-is-a-dictionary-slow-to-find-frequency-of-each-character time seconds time seconds Counter 0.451 3.367 3.6 setdefault 0.348 2.320 2.5 list 0.277 1.822 2 try except 0.158 1.068.. and 'big.txt' . The script that compares 'Counter' 'setdefault' 'list' 'try except' 'defaultdict' 'numpy' 'cython' based and..
Python: How to “perfectly” override a dict http://stackoverflow.com/questions/3387691/python-how-to-perfectly-override-a-dict free get assert 'TeSt' in s # free __contains__ # free setdefault __eq__ and so on import pickle assert pickle.loads pickle.dumps..
Use cases for the 'setdefault' dict method http://stackoverflow.com/questions/3483520/use-cases-for-the-setdefault-dict-method cases for the 'setdefault' dict method The addition of collections.defaultdict in Python.. in Python 2.5 greatly reduced the need for dict 's setdefault method. This question is for our collective education What is.. This question is for our collective education What is setdefault still useful for today in Python 2.6 2.7 What popular use cases..
python backports for some methods http://stackoverflow.com/questions/3785433/python-backports-for-some-methods for defaultdict I guess you can emulate that easily with setdefault . Quoting from Alex Martelli`s and others' highly recommended.. highly recommended Python Cookbook This is what the setdefault method of dictionaries is for. Say we 胩e building a word to.. might be def addword theIndex word pagenumber theIndex.setdefault word .append pagenumber This code is equivalent to more verbose..
Python Property Change Listener Pattern http://stackoverflow.com/questions/5186520/python-property-change-listener-pattern dict.clear pop _wrap dict.pop popitem _wrap dict.popitem setdefault _wrap dict.setdefault update _wrap dict.update share improve..
What is the best way to implement nested dictionaries in Python? http://stackoverflow.com/questions/635483/what-is-the-best-way-to-implement-nested-dictionaries-in-python do this. How could I do this better Addendum I'm aware of setdefault but it doesn't really make for clean syntax. Also each sub dictionary.. Also each sub dictionary you create still needs to have setdefault manually set. python data structures autovivification share..
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