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  • What does colon equal (:=) in Python mean? - Stack Overflow
    In Python this is simply = To translate this pseudocode into Python you would need to know the data structures being referenced, and a bit more of the algorithm implementation Some notes about psuedocode: := is the assignment operator or = in Python = is the equality operator or == in Python There are certain styles, and your mileage may vary:
  • What is Pythons equivalent of (logical-and) in an if-statement?
    There is no bitwise negation in Python (just the bitwise inverse operator ~ - but that is not equivalent to not) See also 6 6 Unary arithmetic and bitwise binary operations and 6 7 Binary arithmetic operations The logical operators (like in many other languages) have the advantage that these are short-circuited That means if the first operand already defines the result, then the second
  • operators - Python != operation vs is not - Stack Overflow
    In a comment on this question, I saw a statement that recommended using result is not None vs result != None What is the difference? And why might one be recommended over the other?
  • slice - How slicing in Python works - Stack Overflow
    Python slicing is a computationally fast way to methodically access parts of your data In my opinion, to be even an intermediate Python programmer, it's one aspect of the language that it is necessary to be familiar with
  • What is :: (double colon) in Python when subscripting sequences?
    I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3]?
  • Is there a not equal operator in Python? - Stack Overflow
    There's the != (not equal) operator that returns True when two values differ, though be careful with the types because "1" != 1 This will always return True and "1" == 1 will always return False, since the types differ Python is dynamically, but strongly typed, and other statically typed languages would complain about comparing different types There's also the else clause:
  • Does Python have a ternary conditional operator?
    Python is a syntax-rich language with lots of idiomatic tricks that aren't immediately apparent to the dabbler But the more you learn and understand the mechanics of the underlying system, the more you appreciate it
  • The tilde operator in Python - Stack Overflow
    In Python, conceptually, numbers use an arbitrary number of bits The implementation will allocate more space automatically, according to what is necessary to represent the number (For example, if the value would "fit" in one machine word, then only one is used; the data type abstracts the process of sign-extending the number out to infinity )
  • What does asterisk * mean in Python? - Stack Overflow
    What does asterisk * mean in Python? [duplicate] Ask Question Asked 17 years, 3 months ago Modified 2 years, 2 months ago





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