attempt to fix pypi publication

travis' dpl command seems to be broken for python 2:

travis-ci/dpl#1232

This terrible work-around forces wget to just download the 2.7
pip. Blech.

.travis.yml

@@ -1,4 +1,5 @@
 services: docker
+dist: focal
 
 env:
   global:
@@ -14,6 +15,8 @@ _python_template: &_python_template
   before_install: cd client/
   install: pip install -e .[test]
   script: py.test
+  before_deploy: sudo cp /usr/bin/wget /usr/bin/_wget && echo -e '#!/bin/bash\n/usr/bin/_wget -nv -O - https://bootstrap.pypa.io/2.7/get-pip.py' | sudo tee /usr/bin/wget
+  after_deploy: sudo mv /usr/bin/_wget /usr/bin/wget
   deploy:
     provider: pypi
     edge: true