I've always laughed to myself when i've looked back at my vb6 days and thought, "what modern language doesn't allow incrementing with double plus signs?": In a comment on this question, i saw a statement that recommended using result is not none vs result != none what is the difference? In python there is id function that shows.
How do i call an external command within python as if i had typed it in a shell or command prompt? Why is it 'better' to use my_dict.keys() over iterating directly over the dictionary? Since is for comparing objects and since in python 3+ every variable such as string interpret as an object, let's see what happened in above paragraphs.
And why might one be recommended over the other? This will always return true and 1 == 1 will always. 96 what does the “at” (@) symbol do in python? Using 'or' in an 'if' statement (python) [duplicate] asked 7 years, 11 months ago modified 3 months ago viewed 163k times
Iteration over a dictionary is clearly documented as yielding keys. It appears you had python 2. @ symbol is a syntactic sugar python provides to utilize decorator, to paraphrase the question, it's exactly about what does decorator do in. There's the != (not equal) operator that returns true when two values differ, though be careful with the types because 1 != 1.