An example of using file input and output.

PythonIO.py

#example file writing procedure
f = open("/home/sharocko/Documents/Codecademy/output.txt", "w") #open the file for writing
f.write("Hello World\n") #write a string to the file
f.close() #close the file when we're done

#example file reading procedure
f = open("/home/sharocko/Documents/Codecademy/output.txt", "r") #open the file for reading
print f.read() #read data from the file
f.close() #close the file when we're done

#example file appending procedure
f = open("/home/sharocko/Documents/Codecademy/output.txt", "a+") #open the file for appending and reading
f.write("See I append the file.\n") #write data to the file
print f.read() #print the contents from the file, note that it's only from the end of the file so we get nothing
f.close() #close the file when we're done

#uncomment the following to see the real contents of the file
#f = open("/home/sharocko/Documents/Codecademy/output.txt", "w")
#f.write("Hello World\n")
#f.close()

f = open("/home/sharocko/Documents/Codecademy/output.txt", "w+") #open the file for reading and writing
print f.read() #read the content from the file, notice how there isn't anything
f.write("New text for the file.\n") #write some data to the file
print f.read() #read the content, note that we don't see anything because our pointer is at the end of the file
f.close() #close the file when we're done

#add a open with read permission to see the content of the above file