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Compare object instances for equality by their attributes

...able)): return obj if isinstance(obj, Iterable): base_items = [base_typed(item) for item in obj] return base_items if from_numpy else T(base_items) d = obj if T is dict else obj.__dict__ return {k: base_typed(v) for k, v in d.items()} def deep_equals(*args): ...
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Matrix Transpose in Python

... The "best" answer has already been submitted, but I thought I would add that you can use nested list comprehensions, as seen in the Python Tutorial. Here is how you could get a transposed array: def matrixTranspose( matrix ): ...
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Is there any performance gain in indexing a boolean field?

... be negligible only makes sense if you are about 50% likely to come across items matching your search. Then, to find 100 matches, the DB needs to iterate 200 items. But if the items only match 1% of the time, it would need to iterate 10,000 items. – mahemoff Se...
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Numeric for loop in Django templates

... In order to have a python solution, this seemed to me the best one – artu-hnrq Jul 7 at 18:51 ...
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How do I pick 2 random items from a Python set? [duplicate]

I currently have a Python set of n size where n >= 0. Is there a quick 1 or 2 lines Python solution to do it? For example, the set will look like: ...
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th

...d(key, value); } public void Add(KeyValuePair<TKey, TValue> item) { _dict.Add(item); } public void Clear() { _dict.Clear(); } public bool Contains(KeyValuePair<TKey, TValue> item) { return _dict.Contains(item); } pub...
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Why use ICollection and not IEnumerable or List on many-many/one-many relationships?

... used because the IEnumerable<T> interface provides no way of adding items, removing items, or otherwise modifying the collection. share | improve this answer | follow ...
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Rearranging Tab Bar Controller Order in StoryBoard

... If you don't see items to drag, it could be because you haven't set an icon yet. I found that it wasn't showing up until I set the icons! – Brian May 18 '16 at 14:52 ...
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How can I list all collections in the MongoDB shell?

... @Dan: I haven't used MongoDB in a while, but my best guess is that it's the size of the data stored in the collection vs. the total amount allocated to that collection (to handle minor updates and growth without having to constantly reallocate new space for the entire coll...
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How to add a list item to an existing unordered list?

I have code that looks like this: 13 Answers 13 ...