Files can be read and written in Python from "summary" of Python Programming by John M. Zelle
Reading and writing files is a crucial aspect of any programming language, including Python. In Python, you can easily open, read from, and write to files using built-in functions. To open a file, you use the `open()` function, which takes two arguments - the file name and the mode. The mode can be 'r' for reading, 'w' for writing, or 'a' for appending to a file. Once a file is opened, you can read its contents using the `read()` method. This method reads the entire file as a single string. If you want to read the file line by line, you can use the `readline()` method. Alternatively, you can use the `readlines()` method to read all lines into a list. After reading a file, it is essential to close the file...
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