CMSC201 Computer Science I for Majors

CMSC201

Computer Science I for Majors

Lecture 19 ¨C Modules and

¡°Random¡± Numbers

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Last Class We Covered

? What makes ¡°good code¡± good

¨C Commenting guidelines

? Top down design

? Code implementation

¨C Bottom up

¨C Top down

¨C Incremental development

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Any Questions from Last Time?

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Today¡¯s Objectives

? To learn about Python¡¯s Standard Library

? To understand modules and importing

¨C Syntax

¨C Purpose

? To learn about ¡°random¡± numbers

¨C Pseudo randomness

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Python¡¯s Standard Library

? The ¡°standard library¡± is made up of two parts

? The ¡°core¡± of the Python language

¨C Built-in types and data structures (int, list, etc.)

¨C Built-in functions (min(), max(), etc.)

? Optional modules the programmer can import

¨C Math things like fractions and random

¨C Useful pieces like datetime and calendar

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