Python 3 - Second Edition

6.2    Reading Data from a File

First, we’ll describe how you can read data from a file. To do this, we need to access that file in read-only mode. The test file we’ll use in this example is a dictionary that contains in each line an English word and, separated from it by a space, its German translation. The file should be named dictionary.txt:

Spain SpanienGermany DeutschlandSweden SchwedenFrance FrankreichItaly Italien  

In the program, we want to prepare the data in this file so that we can conveniently access it later in a dictionary.[ 20 ] As a little extra, we’ll extend the program to allow the user to ask the program for the translation of an English term.

6.2.1    Opening and Closing a File

First, the file must be opened for reading. ...