Merge pull request
#4469 from takluyver/py3-getcwdu...
Merge pull request
#4469 from takluyver/py3-getcwdu
Python 3 & getcwdu
We were using the os.getcwdu() function in several places. That doesn't exist on Python 3, but the path.py module was masking that by setting os.getcwdu = os.getcwd. As described in
#4462, however, that didn't always work.
This adds a reference in py3compat which points to getcwd on Python 3 and getcwdu in Python 2.
