Mock Python's built in print function

Question

I\'ve tried

from mock import Mock
import __builtin__

__builtin__.print = Mock()

But that raises a syntax error. I\'ve also tried patching

Answer 1

import mock
import sys

mock_stdout = mock.Mock()
sys.stdout = mock_stdout
print 'Hello!'
sys.stdout = sys.__stdout__

print mock_stdout.mock_calls
[call.write('Hello!'), call.write('\n')]