Lets try with python 3 (duh)

.circleci/.config.yml

@@ -1,20 +0,0 @@
-version: 2
-jobs:
-  build:
-    docker:
-      - image: alexswensen/pi-gen-container:latest
-    working_directory: /pi-gen
-    steps:
-      - checkout
-      # - run:
-      #     name: Install Dependencies
-      #     command: apt-get -y update && apt-get -y install git vim parted quilt realpath qemu-user-static debootstrap zerofree pxz zip dosfstools bsdtar libcap2-bin rsync grep udev xz-utils curl xxd file && rm -rf /var/lib/apt/lists/*
-
-      # - run:
-      #     name: list files
-      #     command: sudo mount -i -o remount,exec,dev /pi-gen/
-
-      - run:
-          name: Build Raspbian
-          command: ./build-docker.sh
-          no_output_timeout: 30m

.travis.yml

@@ -1,8 +1,10 @@
 language: python
+python:
+  - "3.6"
 services:
   - docker
 # use travis-pls to force travis to behave.
 # https://github.com/naftulikay/travis-pls
-install: pip install git+https://github.com/naftulikay/travis-pls
+install: pip install travispls
 
 script: travis-pls -m 5400 ./build-docker.sh