Dropped python 3.9 support

.github/actions/run-tests/action.yml

@@ -38,7 +38,7 @@ runs:
         if [ "${{ inputs.event-name }}" == "schedule" ] || [ "${{ inputs.run-slow }}" == "true" ]; then
           export QISKIT_TESTS="run_slow"
         fi
-        if [ "${{ inputs.os }}" == "ubuntu-latest" ] && [ "${{ inputs.python-version }}" == "3.8" ]; then
+        if [ "${{ inputs.os }}" == "ubuntu-latest" ] && [ "${{ inputs.python-version }}" == "3.9" ]; then
           export PYTHON="coverage3 run --source qiskit_nature --omit */gauopen/* --parallel-mode"
         fi
         stestr --test-path test run 2> >(tee /dev/stderr out.txt > /dev/null)

.github/workflows/deploy-code.yml

@@ -25,7 +25,7 @@ jobs:
       id-token: write
     strategy:
       matrix:
-        python-version: [3.8]
+        python-version: [3.9]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5

.github/workflows/deploy-docs.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8]
+        python-version: [3.9]
     steps:
       - uses: actions/checkout@v4
         with:

.github/workflows/main.yml

@@ -36,7 +36,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.8]
+        python-version: [3.9]
     steps:
       - name: Print Concurrency Group
         env:
@@ -149,14 +149,14 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
+        python-version: [3.9, '3.10', 3.11, 3.12]
         include:
           - os: macos-latest
-            python-version: 3.8
+            python-version: 3.9
           - os: macos-latest
             python-version: 3.12
           - os: windows-latest
-            python-version: 3.8
+            python-version: 3.9
           - os: windows-latest
             python-version: 3.12
     steps:
@@ -177,14 +177,11 @@ jobs:
         if: ${{ matrix.os == 'macos-latest' }}
       - name: Create conda environment
         run: |
-          echo user $USER
-          echo conda_dir $CONDA output_complete
-          which conda
           if [ "${{ matrix.os }}" == "macos-latest" ]; then
             sudo chown -R $USER: "$CONDA"
           fi
           source "$CONDA/etc/profile.d/conda.sh"
-          if [ "${{ matrix.python-version }}" >= "3.9" ]; then
+          if [ "${{ matrix.python-version }}" >= "3.11" ]; then
             conda create -y -n psi4env python=${{ matrix.python-version }} -c conda-forge
           else
             conda create -y -n psi4env python=${{ matrix.python-version }}
@@ -204,11 +201,6 @@ jobs:
       - uses: ./.github/actions/install-nature
         with:
           use-conda: "true"
-      - name: Set up problem matches
-        run: |
-          echo "::add-matcher::./.github/problem_matchers/pylint.json"
-          echo "::add-matcher::./.github/problem_matchers/mypy.json"
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.python-version == 3.8 }}
       - name: Run lint
         run: |
           source "$CONDA/etc/profile.d/conda.sh"
@@ -254,7 +246,7 @@ jobs:
           conda activate psi4env
           coverage3 combine
           mv .coverage ./ci-artifact-data/nat.dat
-        if: ${{ matrix.os == 'ubuntu-latest' && matrix.python-version == 3.8 }}
+        if: ${{ matrix.os == 'ubuntu-latest' && matrix.python-version == 3.9 }}
         shell: bash
       - uses: actions/upload-artifact@v4
         with:
@@ -283,7 +275,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: [3.8, 3.12]
+        python-version: [3.9, 3.12]
     steps:
       - uses: actions/checkout@v4
         with:
@@ -350,30 +342,26 @@ jobs:
           cd docs/_build/html
           mkdir artifacts
           tar -zcvf artifacts/tutorials.tar.gz --exclude=./artifacts .
-        if: ${{ matrix.python-version == 3.8 && !startsWith(github.ref, 'refs/heads/stable') && !startsWith(github.base_ref, 'stable/') }}
+        if: ${{ matrix.python-version == 3.9 && !startsWith(github.ref, 'refs/heads/stable') && !startsWith(github.base_ref, 'stable/') }}
         shell: bash
       - name: Run upload stable tutorials
         uses: actions/upload-artifact@v4
         with:
           name: tutorials-stable${{ matrix.python-version }}
           path: docs/_build/html/artifacts/tutorials.tar.gz
-        if: ${{ matrix.python-version == 3.8 && !startsWith(github.ref, 'refs/heads/stable') && !startsWith(github.base_ref, 'stable/') }}
+        if: ${{ matrix.python-version == 3.9 && !startsWith(github.ref, 'refs/heads/stable') && !startsWith(github.base_ref, 'stable/') }}
   Deprecation_Messages_and_Coverage:
     if: github.repository_owner == 'qiskit-community'
     needs: [Checks, Nature, Tutorials]
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8]
+        python-version: [3.9]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
-      - uses: actions/download-artifact@v4
-        with:
-          name: ubuntu-latest-3.8
-          path: /tmp/u38
       - uses: actions/download-artifact@v4
         with:
           name: ubuntu-latest-3.9
@@ -392,16 +380,16 @@ jobs:
           path: /tmp/u312
       - uses: actions/download-artifact@v4
         with:
-          name: macos-latest-3.8
-          path: /tmp/m38
+          name: macos-latest-3.9
+          path: /tmp/m39
       - uses: actions/download-artifact@v4
         with:
           name: macos-latest-3.12
           path: /tmp/m312
       - uses: actions/download-artifact@v4
         with:
-          name: windows-latest-3.8
-          path: /tmp/w38
+          name: windows-latest-3.9
+          path: /tmp/w39
       - uses: actions/download-artifact@v4
         with:
           name: windows-latest-3.12

.mergify.yml

@@ -1,12 +1,12 @@
 queue_rules:
   - name: automerge
     conditions:
-      - check-success=Deprecation_Messages_and_Coverage (3.8)
+      - check-success=Deprecation_Messages_and_Coverage (3.9)
 
 pull_request_rules:
   - name: automatic merge on CI success and review
     conditions:
-      - check-success=Deprecation_Messages_and_Coverage (3.8)
+      - check-success=Deprecation_Messages_and_Coverage (3.9)
       - "#approved-reviews-by>=1"
       - label=automerge
       - label!=on hold

setup.py

@@ -62,7 +62,6 @@
         "Operating System :: MacOS",
         "Operating System :: POSIX :: Linux",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
@@ -73,7 +72,7 @@
     packages=setuptools.find_packages(include=["qiskit_nature", "qiskit_nature.*"]),
     install_requires=REQUIREMENTS,
     include_package_data=True,
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     extras_require={
         "pyscf": ["pyscf; sys_platform != 'win32'"],
         "mpl": ["matplotlib>=3.3"],