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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
- math - ` ` vs ` ` for division in Python - Stack Overflow
In Python 2 2 or later in the 2 x line, there is no difference for integers unless you perform a from __future__ import division, which causes Python 2 x to adopt the 3 x behavior Regardless of the future import, 5 0 2 will return 2 0 since that's the floor division result of the operation
- What is :: (double colon) in Python when subscripting sequences?
When slicing in Python the third parameter is the step As others mentioned, see Extended Slices for a nice overview With this knowledge, [::3] just means that you have not specified any start or end indices for your slice Since you have specified a step, 3, this will take every third entry of something starting at the first index For example:
- python - What is the purpose of the -m switch? - Stack Overflow
You must run python my_script py from the directory where the file is located Alternatively - python path to my_script py However, you can run python -m my_script (ie refer to the script by module name by omitting the py) from anywhere, as long as Python can find it! Python searches as follows (not 100% sure about the order): Current directory
- slice - How slicing in Python works - Stack Overflow
In Python 2 7 Slicing in Python [a:b:c] len = length of string, tuple or list c -- default is +1 The sign of c indicates forward or backward, absolute value of c indicates steps Default is forward with step size 1 Positive means forward, negative means backward a -- When c is positive or blank, default is 0 When c is negative, default is -1
- 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 Would love an explanation!
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