Switched from deprecated "setup.py install" to "pip install ."

.github/workflows/test-mingw.yml

@@ -60,7 +60,7 @@ jobs:
           pushd depends && ./install_extra_test_images.sh && popd
 
       - name: Build Pillow
-        run: CFLAGS="-coverage" python3 setup.py build_ext install
+        run: CFLAGS="-coverage" python3 -m pip install --global-option="build_ext" .
 
       - name: Test Pillow
         run: |

Makefile

@@ -54,12 +54,12 @@ inplace: clean
 
 .PHONY: install
 install:
-	python3 setup.py install
+	python3 -m pip install .
 	python3 selftest.py
 
 .PHONY: install-coverage
 install-coverage:
-	CFLAGS="-coverage -Werror=implicit-function-declaration" python3 setup.py build_ext install
+	CFLAGS="-coverage -Werror=implicit-function-declaration" python3 -m pip install --global-option="build_ext" .
 	python3 selftest.py
 
 .PHONY: debug
@@ -68,7 +68,7 @@ debug:
 # for our stuff, kills optimization, and redirects to dev null so we
 # see any build failures.
 	make clean > /dev/null
-	CFLAGS='-g -O0' python3 setup.py build_ext install > /dev/null
+	CFLAGS='-g -O0' python3 -m pip install --global-option="build_ext" . > /dev/null
 
 .PHONY: install-req
 install-req:
@@ -86,7 +86,7 @@ release-test:
 	python3 setup.py develop
 	python3 selftest.py
 	python3 -m pytest Tests
-	python3 setup.py install
+	python3 -m pip install .
 	-rm dist/*.egg
 	-rmdir dist
 	python3 -m pytest -qq

docs/installation.rst

@@ -275,10 +275,6 @@ Build Options
 
 Sample usage::
 
-    MAX_CONCURRENCY=1 python3 setup.py build_ext --enable-[feature] install
-
-or using pip::
-
     python3 -m pip install --upgrade Pillow --global-option="build_ext" --global-option="--enable-[feature]"
 
 
@@ -310,7 +306,7 @@ Now install Pillow with::
 
 or from within the uncompressed source directory::
 
-    python3 setup.py install
+    python3 -m pip install .
 
 Building on Windows
 ^^^^^^^^^^^^^^^^^^^