lint cython code

Author: escherba

pip-freeze.txt

@@ -3,7 +3,7 @@ Cython==0.29.26
 distlib==0.3.4
 filelock==3.4.2
 iniconfig==1.1.1
--e git+https://github.com/escherba/python-metrohash@dc510c29023965895fa61ec19e3c40c6292fc514#egg=metrohash
+-e git+https://github.com/escherba/python-metrohash@f44727818a7218a25bc319215a4ff461f1ca7f4b#egg=metrohash
 packaging==21.3
 platformdirs==2.4.1
 pluggy==1.0.0

python.mk

@@ -39,7 +39,7 @@ release: env build_ext  ## upload package to PyPI
 .PHONY: shell
 shell: build_ext  ## open Python shell within the virtualenv
 	@echo "Using $(PYVERSION)"
-	$(PYENV) $(ENV_EXTRA) python
+	$(PYENV) python
 
 .PHONY: build_ext
 build_ext: $(EXTENSION)  ## build C extension(s)
@@ -82,7 +82,7 @@ env/bin/activate: setup.py requirements.txt
 	test -f $@ || virtualenv $(VENV_OPTS) env
 	export SETUPTOOLS_USE_DISTUTILS=stdlib; $(PYENV) curl https://bootstrap.pypa.io/ez_setup.py | $(INTERPRETER)
 	$(PIP) install -U pip
-	export SETUPTOOLS_USE_DISTUTILS=stdlib; $(PIP) install -r requirements.txt
+	$(PIP) install -r requirements.txt
 	$(PIP) install -e .
 	$(PIP) freeze > pip-freeze.txt
 	touch $@

setup.cfg

@@ -4,7 +4,7 @@ package_dir =
 
 [metadata]
 version = attr:cityhash.__version__
-description-file = README.rst
+description_file = README.rst
 
 [tool:pytest]
 addopts = --doctest-modules