The sys.stdout print equivalent is the basis of a common technique in Python.
In general, print and sys.stdout are directly related as follows. This statement:
print(X, Y) # Or, in 2.X: print X, Y
is equivalent to the longer:
import sys sys.stdout.write(str(X) + ' ' + str(Y) + '\n')
To make your print operations send their text to other places. For example:
import sys sys.stdout = open('log.txt', 'a') # Redirects prints to a file ... print(x, y, x) # Shows up in log.txt
Here, we reset sys.stdout to a manually opened file named log.txt in append mode.