Officially support Python 3.12 and update dev environment

.github/workflows/build.yml

@@ -17,10 +17,8 @@ jobs:
       max-parallel: 4
       matrix:
         platform: [ubuntu-latest, windows-latest]
-        python-version: [3.7, 3.8, 3.9, '3.10', '3.11', '3.12-dev']
+        python-version: [3.8, 3.9, '3.10', '3.11', '3.12']
         include:
-          - python-version: 3.7
-            tox-env: py37
           - python-version: 3.8
             tox-env: py38
           - python-version: 3.9
@@ -29,24 +27,25 @@ jobs:
             tox-env: py310
           - python-version: '3.11'
             tox-env: py311
-          - python-version: '3.12-dev'
+          - python-version: '3.12'
             tox-env: py312
-        exclude:
-          - platform: windows-latest
-            python-version: '3.12-dev'
+        # exclude:
+        #   - platform: windows-latest
+        #     python-version: '3.12-dev'
 
     env:
       TOXENV: ${{ matrix.tox-env }}
 
     runs-on: ${{ matrix.platform }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
       if: "!endsWith(matrix.python-version, '-dev')"
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
     - name: Set up development Python ${{ matrix.python-version }}
       if: endsWith(matrix.python-version, '-dev')
       uses: deadsnakes/action@v2.1.1
@@ -79,9 +78,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -103,9 +102,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies

.github/workflows/deploy.yml

@@ -16,11 +16,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         fetch-depth: 0
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         distribution: [bdist_wheel]
-        python-3-version: [7, 8, 9, '10', '11']
+        python-3-version: [8, 9, '10', '11', '12']
         include:
           - distribution: sdist
             python-3-version: '11'
@@ -49,8 +49,8 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
         with:
           python-version: 3.${{ matrix.python-3-version }}
       - name: Package sdist
@@ -65,7 +65,7 @@ jobs:
           python -m build -w
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           path: dist/*
 

backrefs/__meta__.py

@@ -93,7 +93,7 @@ def __new__(
                 raise ValueError("All version parts except 'release' should be integers.")
 
         if release not in REL_MAP:
-            raise ValueError("'{}' is not a valid release type.".format(release))
+            raise ValueError(f"'{release}' is not a valid release type.")
 
         # Ensure valid pre-release (we do not allow implicit pre-releases).
         if ".dev-candidate" < release < "final":
@@ -118,7 +118,7 @@ def __new__(
             elif dev:
                 raise ValueError("Version is not a development release.")
 
-        return super(Version, cls).__new__(cls, major, minor, micro, release, pre, post, dev)
+        return super().__new__(cls, major, minor, micro, release, pre, post, dev)
 
     def _is_pre(self) -> bool:
         """Is prerelease."""
@@ -145,15 +145,15 @@ def _get_canonical(self) -> str:
 
         # Assemble major, minor, micro version and append `pre`, `post`, or `dev` if needed..
         if self.micro == 0:
-            ver = "{}.{}".format(self.major, self.minor)
+            ver = f"{self.major}.{self.minor}"
         else:
-            ver = "{}.{}.{}".format(self.major, self.minor, self.micro)
+            ver = f"{self.major}.{self.minor}.{self.micro}"
         if self._is_pre():
-            ver += '{}{}'.format(REL_MAP[self.release], self.pre)
+            ver += f'{REL_MAP[self.release]}{self.pre}'
         if self._is_post():
-            ver += ".post{}".format(self.post)
+            ver += f".post{self.post}"
         if self._is_dev():
-            ver += ".dev{}".format(self.dev)
+            ver += f".dev{self.dev}"
 
         return ver
 
@@ -164,7 +164,7 @@ def parse_version(ver: str) -> Version:
     m = RE_VER.match(ver)
 
     if m is None:
-        raise ValueError("'{}' is not a valid version".format(ver))
+        raise ValueError(f"'{ver}' is not a valid version")
 
     # Handle major, minor, micro
     major = int(m.group('major'))
@@ -193,5 +193,5 @@ def parse_version(ver: str) -> Version:
     return Version(major, minor, micro, release, pre, post, dev)
 
 
-__version_info__ = Version(5, 5, 1, "final")
+__version_info__ = Version(5, 6, 0, "final")
 __version__ = __version_info__._get_canonical()