(lxxviii) stackoverflow python report

These are the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2017-06-17 21:39:34 GMT

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1. Union of 2 sets does not contain all items - [77/4]
2. Is there a way to list the attributes of a class without instantiating an object? - [20/3]
3. I can't remove the last comma - [16/6]
4. Python writelines() and write() huge time difference - [16/3]
5. Operator overloading in Python: handling different types and order of parameters - [15/2]
6. Why does naive string concatenation become quadratic above a certain length? - [11/3]
7. OpenCV: reading frames from VideoCapture advances the video to bizarrely wrong location - [10/3]
8. Can I change the way keys are compared in a Python dict? I want to use the operator 'is' instead of == - [10/2]
9. Why are instances of old style classes instances of `object`? - [10/0]
10. Python script runs on boot then reboots at end - How to regain control? - [9/4]