python - Iterating over a dictionary using a for loop, getting keys . . . Why is it 'better' to use my_dict keys() over iterating directly over the dictionary? Iteration over a dictionary is clearly documented as yielding keys It appears you had Python 2 in mind when you answered this, because in Python 3 for key in my_dict keys() will still have the same problem with changing the dictionary size during iteration
syntax - Python integer incrementing with ++ - Stack Overflow I've always laughed to myself when I've looked back at my VB6 days and thought, quot;What modern language doesn't allow incrementing with double plus signs? quot;: number++ To my surprise, I can'
python - `from . . . import` vs `import . ` - Stack Overflow I'm wondering if there's any difference between the code fragment from urllib import request and the fragment import urllib request or if they are interchangeable If they are interchangeable, wh
What does [:-1] mean do in python? - Stack Overflow Working on a python assignment and was curious as to what [:-1] means in the context of the following code: instructions = f readline()[:-1] Have searched on here on S O and on Google but to no avail