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Download our essential introduction to Python cheat sheet covering variables, control flow, functions, data structures, OOP, and dates.
Essentially, if the condition is true, the Python interpreter runs a block of statements called the if-block. If the statement is false, the interpreter skips the if block and processes another block of statements called the else-block. The else clause is optional. Let’s look at two quick examples. 1 >>> num = 20 2 >>> if num == 20:
This cheat sheet includes the materials I’ve covered in my Python tutorial for Beginners on YouTube. Both the YouTube tutorial and this cheat cover the core language constructs but they are not complete by any means. If you want to learn everything Python has to offer and become a Python expert, check out my Complete Python Programming Course: .
1. Primitives. Numbers. Python has integers and floats. Integers are simply whole numbers, like 314, 500, and 716. Floats, meanwhile, are fractional numbers like 3.14, 2.867, 76.88887. You can use the type method to check the value of an object. >>> type(3) <type 'int'> >> type(3.14) <type 'float'> >> pi = 3.14. >> type(pi) <type 'float'> .
concise Python way to create lists. Use brackets plus an expression, followed by a for clause. Close with zero or more for or if clauses. Set comprehension works similar to list comprehension. l = ['hi ' + x for x in ['Alice', 'Bob', 'Pete']] # ['Hi Alice', 'Hi Bob', 'Hi Pete'] l2 = [x * y for x in range(3) for y in range(3) if x>y] # [0, 0, 2]
Learn and remember common Python syntax. A handy reference (plus a PDF version) for any Python Developer whether you're beginner, intermediate or advanced.
Python Functions - Python Cheatsheet. Programming Functions. A function is a block of organized code that is used to perform a single task. They provide better modularity for your application and reuse-ability. Function Arguments. A function can take arguments and return values:
