how to save the output of a cell in iPython notebook?

Question

I would like to be able to save the TEXT output of an iPython notebook cell into a file on disk.

I have 2 additional requirements/requests:

Answer 1

You have a typo, missing d in cap.stout. It should be cap.stdout I tested the following and it worked fine. cap.show() also printed "stuff" and re-running the cell overwrote the file.

%%capture cap --no-stderr
print 'stuff'
with open('output.txt', 'w') as f:
    f.write(cap.stdout)