Support python 3.12 (#1185)

Author: blink1073

.github/workflows/ci.yml

@@ -22,16 +22,16 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ["3.8", "3.11"]
+        python-version: ["3.8", "3.12"]
         include:
           - os: windows-latest
             python-version: "3.9"
           - os: ubuntu-latest
-            python-version: "pypy-3.8"
+            python-version: "pypy-3.9"
           - os: macos-latest
             python-version: "3.10"
           - os: ubuntu-latest
-            python-version: "3.8"
+            python-version: "3.11"
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -153,11 +153,11 @@ jobs:
 
       - name: List installed packages
         run: |
-          hatch run test:list
+          hatch -v run test:list
 
       - name: Run the unit tests
         run: |
-          hatch run test:nowarn || hatch run test:nowarn --lf
+          hatch -v run test:nowarn || hatch run test:nowarn --lf
 
   test_prereleases:
     name: Test Prereleases

pyproject.toml

@@ -17,10 +17,6 @@ classifiers = [
     "License :: OSI Approved :: BSD License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
-    "Programming Language :: Python :: 3.9",
-    "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
 ]
 urls = {Homepage = "https://ipython.org"}
 requires-python = ">=3.8"
@@ -36,7 +32,7 @@ dependencies = [
     "tornado>=6.1",
     "matplotlib-inline>=0.1",
     'appnope;platform_system=="Darwin"',
-    "pyzmq>=20",
+    "pyzmq>=24",
     "psutil",
     "packaging",
 ]
@@ -175,6 +171,9 @@ filterwarnings= [
   "ignore:unclosed event loop:ResourceWarning",
   "ignore:There is no current event loop:DeprecationWarning",
   "module:Jupyter is migrating its paths to use standard platformdirs:DeprecationWarning",
+
+  # Ignore datetime warning.
+  "ignore:datetime.datetime.utc:DeprecationWarning",
 ]
 
 [tool.coverage.report]