mutators, and other short, performance-critical functions. Overuse of inlining can actually make programs slower. Depending on a func- tion’s size, inlining it can cause the code size to increase or decrease collisions in the global scope. Namespaces provide a method for preventing name conflicts in large programs while allowing most code to use reasonably short names. For example, if two different projects be careful or it may not clean up properly. • More generally, exceptions make the control flow of programs difficult to evaluate by looking at code: functions may return in places you don’t expect. This

your code less readable simply out of fear that some programs might not handle non-ASCII characters properly. If that should happen, those programs are broken and they must be fixed. 3 Source file structure

2 Christopher Olston, Shubham Chopra, Utkarsh Srivastava: Generating example data for dataflow programs. SIGMOD 2009 Paper Project Proposals 32 706.015 Introduction to Scientific Writing – 01 Introduction

main scripting language used at Google. This style guide is a list of dos and don’ts for Python programs. To help you format code correctly, we’ve created a settings file for Vim. For Emacs, the default