build: Explicitly declare a dependency on setuptools.

This is needed as long as we're using setup.py to build our packages.

Makefile

@@ -25,10 +25,10 @@ upgrade: ## update the requirements/*.txt files with the latest packages satisfy
 	$(PIP_COMPILE) -o requirements/pip-tools.txt requirements/pip-tools.in
 	pip install -qr requirements/pip.txt
 	pip install -qr requirements/pip-tools.txt
-	$(PIP_COMPILE) -o requirements/base.txt requirements/base.in
-	$(PIP_COMPILE) -o requirements/test.txt requirements/test.in
-	$(PIP_COMPILE) -o requirements/ci.txt requirements/ci.in
-	$(PIP_COMPILE) -o requirements/dev.txt requirements/dev.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/base.txt requirements/base.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/test.txt requirements/test.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/ci.txt requirements/ci.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/dev.txt requirements/dev.in
 
 	make upgrade_template
 

python-template/{{cookiecutter.placeholder_repo_name}}/Makefile

@@ -40,14 +40,14 @@ upgrade: ## update the requirements/*.txt files with the latest packages satisfy
 	pip install -r requirements/pip-tools.txt
 	# Make sure to compile files after any other files they include!
 	$(PIP_COMPILE) --allow-unsafe --rebuild -o requirements/pip.txt requirements/pip.in
-	$(PIP_COMPILE) -o requirements/pip-tools.txt requirements/pip-tools.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/pip-tools.txt requirements/pip-tools.in
 	pip install -r requirements/pip-tools.txt
-	$(PIP_COMPILE) -o requirements/base.txt requirements/base.in
-	$(PIP_COMPILE) -o requirements/test.txt requirements/test.in
-	$(PIP_COMPILE) -o requirements/doc.txt requirements/doc.in
-	$(PIP_COMPILE) -o requirements/quality.txt requirements/quality.in
-	$(PIP_COMPILE) -o requirements/ci.txt requirements/ci.in
-	$(PIP_COMPILE) -o requirements/dev.txt requirements/dev.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/base.txt requirements/base.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/test.txt requirements/test.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/doc.txt requirements/doc.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/quality.txt requirements/quality.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/ci.txt requirements/ci.in
+	$(PIP_COMPILE) --allow-unsafe -o requirements/dev.txt requirements/dev.in
 
 quality: ## check coding style with pycodestyle and pylint
 	touch tests/__init__.py

python-template/{{cookiecutter.placeholder_repo_name}}/requirements/base.in

@@ -1,3 +1,4 @@
 # Core requirements for using this application
 -c constraints.txt
 
+setuptools