Don't preinstall setuptools and wheel, remove from constraints

cibuildwheel/macos.py

@@ -287,8 +287,6 @@ def setup_python(
             "pip",
             "install",
             "--upgrade",
-            "setuptools",
-            "wheel",
             "delocate",
             *dependency_constraint_flags,
             env=env,

cibuildwheel/resources/constraints-python310.txt

@@ -4,25 +4,31 @@
 #
 #    nox -s update_constraints-3.10
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.13.1
     # via virtualenv
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.1.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
+tomli==2.0.1
+    # via
+    #   build
+    #   pyproject-hooks
 typing-extensions==4.9.0
     # via delocate
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==69.0.3
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints-python311.txt

@@ -4,25 +4,27 @@
 #
 #    nox -s update_constraints-3.11
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.13.1
     # via virtualenv
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.1.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
 typing-extensions==4.9.0
     # via delocate
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==69.0.3
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints-python312.txt

@@ -4,25 +4,27 @@
 #
 #    nox -s update_constraints-3.12
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.13.1
     # via virtualenv
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.1.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
 typing-extensions==4.9.0
     # via delocate
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==69.0.3
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints-python36.txt

@@ -4,35 +4,47 @@
 #
 #    nox -s update_constraints-3.6
 #
+build==0.9.0
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.2
     # via -r cibuildwheel/resources/constraints.in
-distlib==0.3.6
+distlib==0.3.8
     # via virtualenv
 filelock==3.4.1
     # via virtualenv
 importlib-metadata==4.8.3
-    # via virtualenv
+    # via
+    #   build
+    #   pep517
+    #   virtualenv
 importlib-resources==5.4.0
     # via virtualenv
+packaging==21.3
+    # via build
+pep517==0.13.1
+    # via build
 platformdirs==2.4.0
     # via virtualenv
+pyparsing==3.1.1
+    # via packaging
+tomli==1.2.3
+    # via
+    #   build
+    #   pep517
 typing-extensions==4.1.1
     # via
     #   delocate
     #   importlib-metadata
 virtualenv==20.17.1
     # via -r cibuildwheel/resources/constraints.in
 wheel==0.37.1
-    # via
-    #   -r cibuildwheel/resources/constraints.in
-    #   delocate
+    # via delocate
 zipp==3.6.0
     # via
     #   importlib-metadata
     #   importlib-resources
+    #   pep517
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==21.3.1
     # via -r cibuildwheel/resources/constraints.in
-setuptools==59.6.0
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints-python37.txt

@@ -4,32 +4,40 @@
 #
 #    nox -s update_constraints-3.7
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.12.2
     # via virtualenv
 importlib-metadata==6.7.0
-    # via virtualenv
+    # via
+    #   build
+    #   virtualenv
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.0.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
+tomli==2.0.1
+    # via
+    #   build
+    #   pyproject-hooks
 typing-extensions==4.7.1
     # via
     #   delocate
     #   importlib-metadata
     #   platformdirs
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
 zipp==3.15.0
     # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==68.0.0
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints-python38.txt

@@ -4,25 +4,35 @@
 #
 #    nox -s update_constraints-3.8
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.13.1
     # via virtualenv
+importlib-metadata==7.0.1
+    # via build
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.1.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
+tomli==2.0.1
+    # via
+    #   build
+    #   pyproject-hooks
 typing-extensions==4.9.0
     # via delocate
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
+zipp==3.17.0
+    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==69.0.3
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints-python39.txt

@@ -4,25 +4,35 @@
 #
 #    nox -s update_constraints-3.9
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.13.1
     # via virtualenv
+importlib-metadata==7.0.1
+    # via build
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.1.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
+tomli==2.0.1
+    # via
+    #   build
+    #   pyproject-hooks
 typing-extensions==4.9.0
     # via delocate
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
+zipp==3.17.0
+    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==69.0.3
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/resources/constraints.in

@@ -1,5 +1,4 @@
 pip
-setuptools
-wheel
+build
 delocate
 virtualenv

cibuildwheel/resources/constraints.txt

@@ -4,25 +4,27 @@
 #
 #    nox -s update_constraints-3.12
 #
+build==1.0.3
+    # via -r cibuildwheel/resources/constraints.in
 delocate==0.10.7
     # via -r cibuildwheel/resources/constraints.in
 distlib==0.3.8
     # via virtualenv
 filelock==3.13.1
     # via virtualenv
 packaging==23.2
-    # via delocate
+    # via
+    #   build
+    #   delocate
 platformdirs==4.1.0
     # via virtualenv
+pyproject-hooks==1.0.0
+    # via build
 typing-extensions==4.9.0
     # via delocate
 virtualenv==20.25.0
     # via -r cibuildwheel/resources/constraints.in
-wheel==0.42.0
-    # via -r cibuildwheel/resources/constraints.in
 
 # The following packages are considered to be unsafe in a requirements file:
 pip==23.3.2
     # via -r cibuildwheel/resources/constraints.in
-setuptools==69.0.3
-    # via -r cibuildwheel/resources/constraints.in

cibuildwheel/windows.py

@@ -315,17 +315,7 @@ def setup_python(
     call("pip", "--version", env=env)
 
     log.step("Installing build tools...")
-    if build_frontend == "pip":
-        call(
-            "pip",
-            "install",
-            "--upgrade",
-            "setuptools",
-            "wheel",
-            *dependency_constraint_flags,
-            env=env,
-        )
-    elif build_frontend == "build":
+    if build_frontend == "build":
         call(
             "pip",
             "install",
@@ -334,8 +324,6 @@ def setup_python(
             *dependency_constraint_flags,
             env=env,
         )
-    else:
-        assert_never(build_frontend)
 
     if python_libs_base:
         # Set up the environment for various backends to enable cross-compilation