Python: Visual QuickStart Guide, Third Edition

11. Case Study: Text Statistics

In This Chapter

Problem Description

Keeping the Letters We Want

Testing the Code on a Large Data File

Finding the Most Frequent Words

Converting a String to a Frequency Dictionary

Putting It All Together

Exercises

The Final Program

So far, most of the code we’ve seen consists of a few statements that demonstrate a feature of Python. New programmers quickly discover that it is a big step to go from these small snippets to entire programs. Bigger programs require more careful planning, and require some understanding of how best to combine individual Python features. When you first start writing larger programs, there can be a lot of trial and error.

In this chapter we will walk through the development of a larger ...