(xxxv) stackoverflow python report

These are the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2016-09-03 06:49:50 GMT

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1. Travelling salesman with a directional constraint - [20/1]
2. Is there any reason for giving self a default value? - [18/2]
3. Why does list(next(iter(())) for _ in range(1)) == []? - [11/2]
4. Find all n-dimensional lines and diagonals with NumPy - [10/3]
5. How to subclass list and trigger an event whenever the data change? - [10/1]
6. Build 2 lists in one go while reading from file, pythonically - [9/4]
7. Python os.environ throws key error? - [8/2]
8. What is the time complexity of dict.keys() in Python? - [8/1]
9. Derivative of summations - [7/3]
10. How to add multiple values to a key in a Python dictionary - [7/3]