Merge branch 'new-poetry-install'

Author: PeterJCLaw

.circleci/config.yml

@@ -5,7 +5,8 @@ references:
     run:
       name: Install Poetry
       command: |
-        curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
+        # Need to use version < 1.2.0 in order to support Python 3.6
+        curl -sSL https://install.python-poetry.org | python3 - --version 1.1.15
   restore-dependencies-cache: &restore-dependencies-cache
     restore_cache:
       keys:
@@ -14,7 +15,6 @@ references:
     run:
       name: Install Dependencies
       command: |
-        source $HOME/.poetry/env
         poetry install
         poetry run pip install "django~=<< parameters.django-version >>.0"
   save-dependencies-cache: &save-dependencies-cache
@@ -65,7 +65,6 @@ jobs:
       - run:
           name: Run Tests
           command: |
-            source $HOME/.poetry/env
             poetry run ./runtests
 
   lint:
@@ -82,7 +81,6 @@ jobs:
       - run:
           name: Run Flake8
           command: |
-            source $HOME/.poetry/env
             poetry run flake8
 
   type-check:
@@ -99,7 +97,6 @@ jobs:
       - run:
           name: Run Mypy
           command: |
-            source $HOME/.poetry/env
             poetry run ./script/type-check
 
   deploy:
@@ -112,7 +109,6 @@ jobs:
       - run:
           name: Push to PyPI
           command: |
-            source $HOME/.poetry/env
             poetry publish \
               --build \
               --username "${PYPI_USERNAME}" \