BLD: Build from source using python 3.9

.github/workflows/pypi.yaml

@@ -20,7 +20,7 @@ env:
 
 jobs:
   build_wheels:
-    name: Build wheels cp38-${{ matrix.buildplat[1] }}
+    name: Build wheels cp39-${{ matrix.buildplat[1] }}
     runs-on: ${{ matrix.buildplat[0] }}
     strategy:
       fail-fast: false
@@ -63,7 +63,7 @@ jobs:
       - name: Build wheels
         uses: pypa/[email protected]
         env:
-          CIBW_BUILD: cp38-${{ matrix.buildplat[1] }}
+          CIBW_BUILD: cp39-${{ matrix.buildplat[1] }}
           CIBW_MANYLINUX_AARCH64_IMAGE: "ghcr.io/nlesc-nano/manylinux2014_aarch64-qmflows:${{ env.TAG }}"
           CIBW_MANYLINUX_X86_64_IMAGE: "ghcr.io/nlesc-nano/manylinux2014_x86_64-qmflows:${{ env.TAG }}"
 

.github/workflows/pythonapp.yml

@@ -145,7 +145,7 @@ jobs:
     - name: Build wheels
       uses: pypa/[email protected]
       env:
-        CIBW_BUILD: cp38-manylinux_x86_64
+        CIBW_BUILD: cp39-manylinux_x86_64
         CIBW_MANYLINUX_X86_64_IMAGE: "ghcr.io/nlesc-nano/manylinux2014_x86_64-qmflows:${{ env.TAG }}"
 
     - name: Set up Python

pyproject.toml

@@ -121,10 +121,10 @@ per-file-ignores = [
 
 [tool.cibuildwheel]
 build = [
-    "cp38-manylinux_x86_64",
-    "cp38-manylinux-aarch64",
-    "cp38-macosx_x86_64",
-    "cp38-macosx_arm64",
+    "cp39-manylinux_x86_64",
+    "cp39-manylinux-aarch64",
+    "cp39-macosx_x86_64",
+    "cp39-macosx_arm64",
 ]
 before-all = "cp licenses/LICENSE_LIBHDF5.txt licenses/LICENSE_LIBINT2.txt ."
 build-frontend = "build"
@@ -147,5 +147,5 @@ repair-wheel-command = [
 ]
 
 [[tool.cibuildwheel.overrides]]
-select = "cp38-macosx_arm64"
+select = "cp39-macosx_arm64"
 environment = { QMFLOWS_INCLUDEDIR="", QMFLOWS_LIBDIR="", LDFLAGS="-Wl", MACOSX_DEPLOYMENT_TARGET="11" }