Working with files in Python is pretty easy. But there’s a common mistake that can sneak into your code. Not closing the file ...

Output: -2 b[0] # it returns the first element in the list Output: 3 b[1:4] # this returns a list of the second, third, and fourth elements in the original list Output: [1, -2, 7] Note: The index of a ...

Defining a list in Python is easy—just use the bracket syntax to indicate items in a list, like this: list_of_ints = [1, 2, 3] Items in a list do not have to all be the same type; they can be ...

Python’s easy-to-understand syntax makes it one of the more accessible languages for beginners. It executes code line by line and raises an exception if something doesn’t work, making it easy ...

Python 2 and Python 3, the two versions of the programming language in widespread use, include a function called shuffle that can randomize a list or another sequence of data.

Matching against variables with Python structural pattern matching An important note is worth bringing up here. If you list variable names in a case statement, that doesn’t mean a match should ...

Find duplicates in a Python list The trivial way to solve this problem is to scan each element of the list against every other element in the list. This will undoubtedly return the correct answer, and ...