PYTHON-5862 Remove usage of uv lock file

.evergreen/combine-coverage.sh

@@ -7,6 +7,8 @@ set -eu
 
 # Set up the virtual env.
 . .evergreen/scripts/setup-dev-env.sh
+export UV_NO_LOCK=1
+export UV_EXCLUDE_NEWER="${UV_EXCLUDE_NEWER:-$(python3 -c "from datetime import datetime, timedelta, timezone; print((datetime.now(timezone.utc) - timedelta(days=7)).strftime('%Y-%m-%dT%H:%M:%SZ'))")}"
 uv sync --group coverage
 source .venv/bin/activate
 

.evergreen/run-tests.sh

@@ -27,10 +27,6 @@ else
 fi
 
 cleanup_tests() {
-  # Avoid leaving the lock file in a changed state when we change the resolution type.
-  if [ -n "${TEST_MIN_DEPS:-}" ]; then
-    git checkout uv.lock || true
-  fi
   cd $PREV_DIR
 }
 

.evergreen/scripts/setup-dev-env.sh

@@ -34,6 +34,7 @@ if [ -z "${CI:-}" ]; then
     export PYMONGO_C_EXT_MUST_BUILD=1
   fi
 
+  export UV_NO_LOCK=1
   (
     cd $ROOT && uv sync
   )

.evergreen/scripts/setup_tests.py

@@ -5,6 +5,7 @@
 import platform
 import shutil
 import stat
+from datetime import datetime, timedelta, timezone
 from pathlib import Path
 from urllib import request
 
@@ -169,6 +170,12 @@ def handle_test_env() -> None:
 
     write_env("PIP_QUIET")  # Quiet by default.
     write_env("PIP_PREFER_BINARY")  # Prefer binary dists by default.
+    write_env("UV_NO_LOCK", "1")
+    if not os.environ.get("UV_EXCLUDE_NEWER"):
+        exclude_newer = (datetime.now(timezone.utc) - timedelta(days=7)).strftime(
+            "%Y-%m-%dT%H:%M:%SZ"
+        )
+        write_env("UV_EXCLUDE_NEWER", exclude_newer)
 
     # Set an environment variable for the test name and sub test name.
     write_env(f"TEST_{test_name.upper()}")

.github/workflows/test-python.yml

@@ -14,6 +14,9 @@ defaults:
   run:
     shell: bash -eux {0}
 
+env:
+  UV_NO_LOCK: "1"
+
 permissions:
   contents: read
 

.gitignore

@@ -44,3 +44,4 @@ xunit-results/
 coverage.xml
 server.log
 .coverage
+uv.lock

.pre-commit-config.yaml

@@ -122,14 +122,3 @@ repos:
     language: python
     require_serial: true
     additional_dependencies: ["shrub.py>=3.10.0", "pyyaml>=6.0.2"]
-
-  - id: uv-lock
-    name: uv-lock
-    entry: uv lock
-    language: python
-    require_serial: true
-    files: ^(uv\.lock|pyproject\.toml|requirements.txt|requirements/.*\.txt)$
-    pass_filenames: false
-    fail_fast: true
-    additional_dependencies:
-      - "uv>=0.8.4"

CONTRIBUTING.md

@@ -574,7 +574,5 @@ From the spawn host or Ubuntu image, do the following:
 ## Dependabot updates
 
 Dependabot will raise PRs at most once per week, grouped by GitHub Actions updates and Python requirement
-file updates.  We have a pre-commit hook that will update the `uv.lock` file when requirements change.
-To update the lock file on a failing PR, you can use a method like `gh pr checkout <pr number>`, then run
-`just lint uv-lock` to update the lock file, and then push the changes.  If a typing dependency has changed,
-also run `just typing` and handle any new findings.
+file updates.  To handle a failing Dependabot PR, you can use a method like `gh pr checkout <pr number>`,
+then push the changes.  If a typing dependency has changed, also run `just typing` and handle any new findings.