Weekly Python StackOverflow Report: (clvi) stackoverflow python report

These are the ten most rated questions at Stack Overflow last week.
Between brackets: [question score / answers count]
Build date: 2018-12-15 14:32:38 GMT

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1. Is is safe to use next within a for loop in Python? - [18/3]
2. Performant cartesian product (CROSS JOIN) with pandas - [14/3]
3. Why does pandas merge on NaN? - [14/1]
4. Use columns 1 and 2 to populate column 3 - [10/4]
5. Setting flag column depending on whether column contains a given string - [10/2]
6. __init__ function definition without self - [10/1]
7. Why does isinstance require a tuple instead of any iterable? - [9/0]
8. Is there an efficient method of checking whether a column has mixed dtypes? - [8/4]
9. Python random.Random(bytearray) TypeError: unhashable type - [8/2]
10. Pythonic way to fill rows with date range - [7/3]

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