diff --git third_party/py/python_configure.bzl third_party/py/python_configure.bzl
--- third_party/py/python_configure.bzl
+++ third_party/py/python_configure.bzl
@@ -163,1 +163,1 @@
-        bash_bin_path = repository_ctx.which("bash")
+        bash_bin_path = repository_ctx.which("bash" if not _is_windows(repository_ctx) else "sh.exe")
@@ -193,1 +193,1 @@ def _get_python_lib(repository_ctx, python_bin, lib_path_key):
-    cmd = '%s - %s' % (python_bin, print_lib)
+    cmd = '"%s" - %s' % (python_bin, print_lib)
@@ -275,10 +275,10 @@
     _create_single_version_package(repository_ctx,
                                    "_python2",
                                    _PYTHON2_BIN_PATH,
-                                   "python",
+                                   "python" if not _is_windows(repository_ctx) else "python.exe",
                                    _PYTHON2_LIB_PATH)
     _create_single_version_package(repository_ctx,
                                    "_python3",
                                    _PYTHON3_BIN_PATH,
-                                   "python3",
+                                   "python3" if not _is_windows(repository_ctx) else "python.exe",
                                    _PYTHON3_LIB_PATH)
--