Git on Mac - Segmentation fault:11

[Frank Burkitt]

I am using Git on a Macbook pro with MacOS High Sierra version 10.13.1
(17B48).  I have been using it in a virtualenv with python 3.  I have
begun to get "Segmentation fault: 11" with every git command.  I have
been searching for a reason why this is occurring but have not been
able to find a solution.  I have reinstalled the operating system,
uninstalled and reinstalled Git, and a variety of other attempts at
finding a solution.  Is this a know issue? Any suggestions would be
appreciated.