get_terminal_size() returns (0, 0) in certain circumstances

[stxlvt]

Using windows 7, python 2.7 and click 6.4, this code prints (0, 0):

import subprocess

print(subprocess.check_output(["python", "-c", "import click; print(click.get_terminal_size())"]))

A dumb fix that gives more sensible output for me is to replace line 170 of termui.py with this:

        size = get_winterm_size()
        if size == (0, 0):
            return (79, 24)
        else:
            return size

[stxlvt]

I should add that this is gives real-world problems. In my specific case, using sphinxcontrib-programoutput to include output from a click-powered command line utility in the documentation will result in output wrapped at 50 characters, which does not look good.

[stxlvt]

I've created a pull request here.

[fdavis]

thanks @stxlvt
closing because this is resolved by #610