message: travis: pypi deploy only from a single build
diff: @@ -48,7 +48,7 @@ matrix:
  - name: "Python 3.7 gcc-7"
  python: 3.7
  - env: CC=gcc-7 CXX=g++-7
  + env: CC=gcc-7 CXX=g++-7 DO_DELPLOY=1
  addons:
  apt:
  sources:
  @@ -97,7 +97,7 @@ deploy:
  on:
  tags: true
  branch: master
  -
  + condition: $DO_DELPLOY = 1
  