Revert "use venv"

This reverts commit 56266ce.

Author: prashantmital

.evergreen/run-tests.sh

@@ -47,9 +47,6 @@ if [ "$SSL" != "nossl" ]; then
     export CA_PEM="$DRIVERS_TOOLS/.evergreen/x509gen/ca.pem"
 fi
 
-# For createvirtualenv.
-. .evergreen/utils.sh
-
 if [ -z "$PYTHON_BINARY" ]; then
     VIRTUALENV=$(command -v virtualenv) || true
     if [ -z "$VIRTUALENV" ]; then
@@ -112,7 +109,6 @@ if [ -n "$TEST_PYOPENSSL" ]; then
         . pyopenssltest/bin/activate
     fi
     trap "deactivate; rm -rf pyopenssltest" EXIT HUP
-    PYTHON=python
 
     IS_PYTHON_2=$(python -c "import sys; sys.stdout.write('1' if sys.version_info < (3,) else '0')")
     if [ $IS_PYTHON_2 = "1" ]; then
@@ -129,10 +125,6 @@ if [ -n "$TEST_PYOPENSSL" ]; then
 fi
 
 if [ -n "$TEST_ENCRYPTION" ]; then
-    createvirtualenv $PYTHON venv-encryption
-    trap "deactivate; rm -rf venv-encryption" EXIT HUP
-    PYTHON=python
-
     if [ -z "$LIBMONGOCRYPT_URL" ]; then
         echo "Cannot test client side encryption without LIBMONGOCRYPT_URL!"
         exit 1
@@ -160,13 +152,13 @@ if [ -n "$TEST_ENCRYPTION" ]; then
         exit 1
     fi
 
-    # TODO: Test with 'pip install pymongocrypt'
-    git clone --branch master https://github.com/mongodb/libmongocrypt.git libmongocrypt_git
-    python -m pip install --upgrade ./libmongocrypt_git/bindings/python
-    python -c "import pymongocrypt; print('pymongocrypt version: '+pymongocrypt.__version__)"
-    python -c "import pymongocrypt; print('libmongocrypt version: '+pymongocrypt.libmongocrypt_version())"
-    # PATH is updated by PREPARE_SHELL for access to mongocryptd.
-
+    git clone --branch PYTHON-2409/add-test-local-kms-python-2 git@github.com:prashantmital/libmongocrypt.git libmongocrypt_git
+    $PYTHON -m pip install --upgrade ./libmongocrypt_git/bindings/python
+    # TODO: use a virtualenv
+    trap "$PYTHON -m pip uninstall -y pymongocrypt" EXIT HUP
+    $PYTHON -c "import pymongocrypt; print('pymongocrypt version: '+pymongocrypt.__version__)"
+    $PYTHON -c "import pymongocrypt; print('libmongocrypt version: '+pymongocrypt.libmongocrypt_version())"
+    # PATH is set by PREPARE_SHELL.
 fi
 
 PYTHON_IMPL=$($PYTHON -c "import platform, sys; sys.stdout.write(platform.python_implementation())")