Examples

• E2.1Numbers in the Python shell
• E2.2Simple mathematical expressions
• E2.3Heron's formula
• E2.4Python's type and id built-ins
• E2.5The return values of logic expressions
• E2.6The "is not" operator
• E2.7Integer object identity gotcha
• E2.8String concatenation with + and *
• E2.9String escaping
• E2.10Unicode
• E2.11String slicing
• E2.12String striding
• E2.13String methods
• E2.14A simple text table using Python strings
• E2.15String representation of integers with comma-separated thousands
• E2.16Using a Python list as a stack
• E2.17Splitting a string
• E2.18Assigning multiple variables in one statement
• E2.19The string join method
• E2.20The Fibonacci sequence
• E2.21The Gregorian calendar
• E2.22Euclid's algorithm for finding the gcd of a number
• E2.23A simple "turtle"
• E2.24Writing numbers to a file
• E2.25Reading numbers from a file
• E2.26Assigning a variable name to a function
• E2.27Default arguments to functions
• E2.28Function Scope
• E2.29The Lazy Caterer's sequence
• E2.30The Tower of Hanoi