Chapter 3. Time and Money

Introduction

Recipe 3.1.  Calculating Yesterday and Tomorrow

Recipe 3.2.  Finding Last Friday

Recipe 3.3.  Calculating Time Periods in a Date Range

Recipe 3.4.  Summing Durations of Songs

Recipe 3.5.  Calculating the Number of Weekdays Between Two Dates

Recipe 3.6.  Looking up Holidays Automatically

Recipe 3.7.  Fuzzy Parsing of Dates

Recipe 3.8.  Checking Whether Daylight Saving Time Is Currently in Effect

Recipe 3.9.  Converting Time Zones

Recipe 3.10.  Running a Command Repeatedly

Recipe 3.11.  Scheduling Commands

Recipe 3.12.  Doing Decimal Arithmetic

Recipe 3.13.  Formatting Decimals as Currency

Recipe 3.14.  Using Python as a Simple Adding Machine

Recipe 3.15.  Checking a Credit Card Checksum

Recipe 3.16.  Watching Foreign Exchange Rates