test minimum versions (#743)

Author: samuelcolvin

.github/workflows/ci.yml

@@ -9,7 +9,6 @@ on:
   pull_request: {}
 
 env:
-  CI: true
   COLUMNS: 150
   UV_PYTHON: 3.12
   UV_FROZEN: '1'
@@ -144,6 +143,14 @@ jobs:
 
       - run: uv run --all-extras python tests/import_examples.py
 
+      # this must run last as it modifies the environment!
+      - name: test lowest versions
+        run: |
+          unset UV_FROZEN
+          uv run --all-extras --resolution lowest-direct coverage run -m pytest
+        env:
+          COVERAGE_FILE: coverage/.coverage.${{ runner.os }}-py${{ matrix.python-version }}-lowest-versions
+
       - name: store coverage files
         uses: actions/upload-artifact@v4
         with:

pydantic_ai_slim/pyproject.toml

@@ -36,7 +36,7 @@ requires-python = ">=3.9"
 dependencies = [
     "eval-type-backport>=0.2.0",
     "griffe>=1.3.2",
-    "httpx>=0.27.2",
+    "httpx>=0.27",
     "logfire-api>=1.2.0",
     "pydantic>=2.10",
 ]
@@ -46,7 +46,7 @@ dependencies = [
 logfire = ["logfire>=2.3"]
 graph = ["pydantic-graph==0.0.19"]
 openai = ["openai>=1.54.3"]
-cohere = ["cohere>=5.13.4"]
+cohere = ["cohere>=5.13.11"]
 vertexai = ["google-auth>=2.36.0", "requests>=2.32.3"]
 anthropic = ["anthropic>=0.40.0"]
 groq = ["groq>=0.12.0"]

pydantic_graph/pyproject.toml

@@ -34,7 +34,7 @@ classifiers = [
 ]
 requires-python = ">=3.9"
 dependencies = [
-    "httpx>=0.27.2",
+    "httpx>=0.27",
     "logfire-api>=1.2.0",
     "pydantic>=2.10",
 ]

tests/test_utils.py

@@ -1,7 +1,9 @@
 from __future__ import annotations as _annotations
 
 import asyncio
+import os
 from collections.abc import AsyncIterator
+from importlib.metadata import distributions
 
 import pytest
 from inline_snapshot import snapshot
@@ -76,3 +78,12 @@ async def test_peekable_async_stream(peek_first: bool):
     assert await peekable_async_stream.is_exhausted()
     assert await peekable_async_stream.peek() is UNSET
     assert items == [1, 2, 3]
+
+
+def test_package_versions(capsys: pytest.CaptureFixture[str]):
+    if os.getenv('CI'):
+        with capsys.disabled():
+            print('\npackage versions:')
+            packages = sorted((package.metadata['Name'], package.version) for package in distributions())
+            for name, version in packages:
+                print(f'{name:30} {version}')