diff --git a/python/pip_install/pip_repository.bzl b/python/pip_install/pip_repository.bzl
index 782a947..0685a88 100644
--- a/python/pip_install/pip_repository.bzl
+++ b/python/pip_install/pip_repository.bzl
@@ -1,6 +1,6 @@
 ""
 
-load("//python:repositories.bzl", "is_standalone_interpreter")
+load("//python:repositories.bzl", "get_interpreter_dirname", "is_standalone_interpreter")
 load("//python/pip_install:repositories.bzl", "all_requirements")
 load("//python/pip_install:requirements_parser.bzl", parse_requirements = "parse")
 load("//python/pip_install/private:srcs.bzl", "PIP_INSTALL_PY_SRCS")
@@ -124,7 +124,7 @@
         fail("could not get python version from interpreter (status {}): {}".format(er.return_code, er.stderr))
     _python_version = er.stdout
     include_path = "{}/include/python{}".format(
-        rctx.path(Label("@{}//:WORKSPACE".format(rctx.attr.python_interpreter_target.workspace_name))).dirname.realpath,
+        get_interpreter_dirname(rctx, rctx.attr.python_interpreter_target),
         _python_version,
     )
 
diff --git a/python/repositories.bzl b/python/repositories.bzl
index de8d90a..e151d88 100644
--- a/python/repositories.bzl
+++ b/python/repositories.bzl
@@ -58,6 +58,19 @@
 
 STANDALONE_INTERPRETER_FILENAME = "STANDALONE_INTERPRETER"
 
+def get_interpreter_dirname(rctx, python_interpreter_target):
+    """Get a python interpreter target dirname.
+
+    Args:
+        rctx (repository_ctx): The repository rule's context object.
+        python_interpreter_target (Target): A target representing a python interpreter.
+
+    Returns:
+        str: The Python interpreter directory.
+    """
+
+    return rctx.path(Label("{}//:WORKSPACE".format(str(python_interpreter_target).split("//")[0]))).dirname
+
 def is_standalone_interpreter(rctx, python_interpreter_target):
     """Query a python interpreter target for whether or not it's a rules_rust provided toolchain
 
@@ -77,7 +90,7 @@
     return rctx.execute([
         "ls",
         "{}/{}".format(
-            rctx.path(Label("@{}//:WORKSPACE".format(rctx.attr.python_interpreter_target.workspace_name))).dirname,
+            get_interpreter_dirname(rctx, python_interpreter_target),
             STANDALONE_INTERPRETER_FILENAME,
         ),
     ]).return_code == 0