PYTHON-5203 Use uv from Python toolchain if available

.evergreen/scripts/configure-env.sh

@@ -92,3 +92,24 @@ cat <<EOT > expansion.yml
 DRIVERS_TOOLS: "$DRIVERS_TOOLS"
 PROJECT_DIRECTORY: "$PROJECT_DIRECTORY"
 EOT
+
+# If the toolchain is available, symlink binaries to the bin dir.  This has to be done
+# after drivers-tools is cloned, since we might be using its binary dir.
+_bin_path=""
+if [ "Windows_NT" == "${OS:-}" ]; then
+  _bin_path="/cygdrive/c/Python/Current/Scripts"
+elif [ "$(uname -s)" != "Darwin" ]; then
+  _bin_path="/Library/Frameworks/Python.Framework/Versions/Current/bin"
+else
+  _bin_path="/opt/python/Current/bin"
+fi
+if [ -d "${_bin_path}" ]; then
+  _suffix=""
+  if [ "Windows_NT" == "${OS:-}" ]; then
+    _suffix=".exe"
+  fi
+  mkdir -p $PYMONGO_BIN_DIR
+  ln -s ${_bin_path}/just${_suffix} $PYMONGO_BIN_DIR/just${_suffix}
+  ln -s ${_bin_path}/uv${_suffix} $PYMONGO_BIN_DIR/uv${_suffix}
+  ln -s ${_bin_path}/uvx${_suffix} $PYMONGO_BIN_DIR/uvx${_suffix}
+fi

.evergreen/scripts/install-dependencies.sh

@@ -24,10 +24,14 @@ function _pip_install() {
   echo "Installing $2 using pip..."
   createvirtualenv "$(find_python3)" $_VENV_PATH
   python -m pip install $1
+  _suffix=""
   if [ "Windows_NT" = "${OS:-}" ]; then
-    ln -s "$(which $2)" $_BIN_DIR/$2.exe
-  else
-    ln -s "$(which $2)" $_BIN_DIR/$2
+    _suffix=".exe"
+  fi
+  ln -s "$(which $2)" $_BIN_DIR/${2}${_suffix}
+  # uv also comes with a uvx binary.
+  if [ $2 == "uv" ]; then
+    ln -s "$(which uvx)" $_BIN_DIR/uvx${_suffix}
   fi
   echo "Installed to ${_BIN_DIR}"
   echo "Installing $2 using pip... done."

.evergreen/scripts/utils.py

@@ -136,5 +136,10 @@ def run_command(cmd: str | list[str], **kwargs: Any) -> None:
         cmd = " ".join(cmd)
     LOGGER.info("Running command '%s'...", cmd)
     kwargs.setdefault("check", True)
-    subprocess.run(shlex.split(cmd), **kwargs)  # noqa: PLW1510, S603
+    try:
+        subprocess.run(shlex.split(cmd), **kwargs)  # noqa: PLW1510, S603
+    except subprocess.CalledProcessError as e:
+        LOGGER.error(e.output)
+        LOGGER.error(str(e))
+        sys.exit(e.returncode)
     LOGGER.info("Running command '%s'... done.", cmd)

.evergreen/utils.sh

@@ -4,31 +4,29 @@ set -eu
 
 find_python3() {
     PYTHON=""
-    # Add a fallback system python3 if it is available and Python 3.9+.
-    if is_python_39 "$(command -v python3)"; then
-        PYTHON="$(command -v python3)"
-    fi
     # Find a suitable toolchain version, if available.
     if [ "$(uname -s)" = "Darwin" ]; then
-        # macos 11.00
-        if [ -d "/Library/Frameworks/Python.Framework/Versions/3.10" ]; then
-            PYTHON="/Library/Frameworks/Python.Framework/Versions/3.10/bin/python3"
-        # macos 10.14
-        elif [ -d "/Library/Frameworks/Python.Framework/Versions/3.9" ]; then
-            PYTHON="/Library/Frameworks/Python.Framework/Versions/3.9/bin/python3"
-        fi
+        PYTHON="/Library/Frameworks/Python.Framework/Versions/Current/bin/python3"
     elif [ "Windows_NT" = "${OS:-}" ]; then # Magic variable in cygwin
-        PYTHON="C:/python/Python39/python.exe"
+        PYTHON="C:/python/Current/python.exe"
     else
         # Prefer our own toolchain, fall back to mongodb toolchain if it has Python 3.9+.
-        if [ -f "/opt/python/3.9/bin/python3" ]; then
-            PYTHON="/opt/python/3.9/bin/python3"
+        if [ -f "/opt/python/Current/bin/python3" ]; then
+            PYTHON="/opt/python/Current/bin/python3"
+        elif is_python_39 "$(command -v /opt/mongodbtoolchain/v5/bin/python3)"; then
+            PYTHON="/opt/mongodbtoolchain/v5/bin/python3"
         elif is_python_39 "$(command -v /opt/mongodbtoolchain/v4/bin/python3)"; then
             PYTHON="/opt/mongodbtoolchain/v4/bin/python3"
         elif is_python_39 "$(command -v /opt/mongodbtoolchain/v3/bin/python3)"; then
             PYTHON="/opt/mongodbtoolchain/v3/bin/python3"
         fi
     fi
+    # Add a fallback system python3 if it is available and Python 3.9+.
+    if [ -z "$PYTHON" ]; then
+        if is_python_39 "$(command -v python3)"; then
+            PYTHON="$(command -v python3)"
+        fi
+    fi
     if [ -z "$PYTHON" ]; then
         echo "Cannot test without python3.9+ installed!"
         exit 1