organize dev requirements (#636)

Makefile

@@ -27,9 +27,7 @@ EXTRAS=[pycodegen]
 # `SHELL=bash` doesn't work for some, so don't use BASH-isms like
 # `[[` conditional expressions.
 PYSOURCES=$(wildcard ${MODULE}/**.py ${MODULE}/avro/*.py ${MODULE}/tests/*.py) setup.py
-DEVPKGS=diff_cover black pylint pep257 pydocstyle flake8 tox tox-pyenv \
-	isort wheel autoflake flake8-bugbear pyupgrade bandit build\
-	-rtest-requirements.txt -rmypy-requirements.txt
+DEVPKGS=-rdev-requirements.txt -rtest-requirements.txt -rmypy-requirements.txt
 COVBASE=coverage run --append
 
 # Updating the Major & Minor version below?
@@ -52,14 +50,14 @@ install-dep: install-dependencies
 
 install-dependencies: FORCE
 	pip install --upgrade $(DEVPKGS)
-	pip install -r requirements.txt -r mypy-requirements.txt
 
 ## install                : install the schema-salad package and scripts
 install: FORCE
 	pip install .$(EXTRAS)
 
 ## dev                    : install the schema-salad package in dev mode
 dev: install-dep
+	pip install -U pip setuptools wheel
 	pip install -e .$(EXTRAS)
 
 ## dist                   : create a module package for distribution

dev-requirements.txt

@@ -0,0 +1,10 @@
+diff_cover < 7.3
+pylint < 2.16
+pydocstyle < 6.2
+flake8-bugbear < 22.13
+tox < 3.28  # until tox-pyenv is updated for tox 4.x
+tox-pyenv < 1.2
+isort < 5.11
+build < 0.9.1
+autoflake < 2.1
+bandit < 1.7.4

requirements.txt

@@ -5,4 +5,4 @@ rdflib>= 4.2.2, < 6.0.0;python_version<='3.6'
 rdflib-jsonld>=0.4.0, <= 0.6.1;python_version<='3.6'
 mistune>=2.0.3,<2.1
 CacheControl[filecache]==0.12.11
-black
+black<22.13

test-requirements.txt

@@ -1,4 +1,3 @@
 pytest >= 6.2, < 7.3
 pytest-cov
 pytest-xdist
-tox

tox.ini

@@ -37,10 +37,11 @@ passenv =
 deps =
   py{36,37,38,39,310,311}-{unit,mypy}: -rrequirements.txt
   py{36,37,38,39,310,311}-{unit,mypy}: -rtest-requirements.txt
-  py{36,37,38,39,310,311}-lint: flake8-bugbear
+  py{36,37,38,39,310,311}-lint: flake8-bugbear < 22.13
   py{36,37,38,39,310,311}-lint: black
-  py{37,38,39,310,311}-bandit: bandit
+  py{37,38,39,310,311}-bandit: bandit < 1.8
   py{37,38,39,310,311}-mypy: -rmypy-requirements.txt
+# don't forget to update dev-requirements.txt as well
 
 setenv =
   py{36,37,38,39,310,311}-unit: LC_ALL = C.UTF-8