Lecture Notes on 27 Feb 2017 Active Reading: Type code as you read. Read Chapter 13: Sections 13.1 - 13.2, 13.4 - 13.5 Write the code from the following listings and run them: * Listing 13.1: WriteDemo.py * Listing 13.2: ReadDemo.py * Listing 13.3: CopyFile.py * Listing 13.4: AppendDemo.py * Listing 13.5: WriteReadNumbers.py * Listing 13.7: CountEachLetter.py * Listing 13.8: CountEachLetterURL.py