Introduction to Python Data Types

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Basic Data Types

• Integers: Signed, finite
• Float: Real numbers, integers, signed
• String: Characters
• Boolean: True/False

type() will tell you the data type of a variable

Typecasting: Changing a variables type from one to another.

float(2):2.0 <- nothing really changes, precision gained in later calculations int(1.1):1 <- be careful, precision has been lost int('1'):1 <- converting a string with an integer value is fine int('A'):Err <- converting a string with a character value throws an error str(1):"1" <- convert an int to a string str(1.1):"1.1" <- convert a float to a string int(True):1 <- cast a True Boolean to an int gets you a 1 (and back again) float(False):0.0 <- likewise, casting False gets you a zero (and back again) bool(1):True <- I did not know that you can ==use the bool() function to cast numbers to bools.==

For a full list of types

A more comprehensive list of types can be found at the W3Schools website.