class CaptureOutput(object):
"""Context manager that captures what's written to :py:data:`sys.stdout`."""
def __init__(self):
"""Initialize a string IO object to be used as :py:data:`sys.stdout`."""
self.stream = StringIO()
def __enter__(self):
"""Start capturing what's written to :py:data:`sys.stdout`."""
self.original_stdout = sys.stdout
sys.stdout = self.stream
return self
def __exit__(self, exc_type=None, exc_value=None, traceback=None):
"""Stop capturing what's written to :py:data:`sys.stdout`."""
sys.stdout = self.original_stdout
def __str__(self):
"""Get the text written to :py:data:`sys.stdout`."""
return self.stream.getvalue()
def __init__(self):
"""Initialize a string IO object to be used as :py:data:`sys.stdout`."""
self.stream = StringIO()