diff --git a/examples/python/code_samples.bzl b/examples/python/code_samples.bzl
index 3ed33a7220f..bf95011b863 100644
--- a/examples/python/code_samples.bzl
+++ b/examples/python/code_samples.bzl
@@ -39,8 +39,6 @@ def code_sample_compile_py(name):
         srcs = [name + ".py"],
         main = name + ".py",
         deps = PYTHON_DEPS,
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_test_py(name):
@@ -50,8 +48,6 @@ def code_sample_test_py(name):
         srcs = [name + ".py"],
         main = name + ".py",
         deps = PYTHON_DEPS,
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_test_arg_py(name, suffix, args, data):
@@ -63,8 +59,6 @@ def code_sample_test_arg_py(name, suffix, args, data):
         data = data,
         args = args,
         deps = PYTHON_DEPS,
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_py(name):
diff --git a/ortools/algorithms/samples/code_samples.bzl b/ortools/algorithms/samples/code_samples.bzl
index 0fdece1acee..5d85abce64e 100644
--- a/ortools/algorithms/samples/code_samples.bzl
+++ b/ortools/algorithms/samples/code_samples.bzl
@@ -49,8 +49,6 @@ def code_sample_py(name):
             requirement("absl-py"),
             requirement("numpy"),
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
     py_test(
@@ -63,8 +61,6 @@ def code_sample_py(name):
             requirement("absl-py"),
             requirement("numpy"),
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_cc_py(name):
diff --git a/ortools/graph/samples/code_samples.bzl b/ortools/graph/samples/code_samples.bzl
index 176a7da3cbc..c347f79218c 100644
--- a/ortools/graph/samples/code_samples.bzl
+++ b/ortools/graph/samples/code_samples.bzl
@@ -75,8 +75,6 @@ def code_sample_py(name):
             requirement("absl-py"),
             requirement("numpy"),
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
     py_test(
@@ -91,8 +89,6 @@ def code_sample_py(name):
             requirement("absl-py"),
             requirement("numpy"),
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_cc_py(name):
diff --git a/ortools/linear_solver/samples/code_samples.bzl b/ortools/linear_solver/samples/code_samples.bzl
index 41be2f3cd02..5b387375d06 100644
--- a/ortools/linear_solver/samples/code_samples.bzl
+++ b/ortools/linear_solver/samples/code_samples.bzl
@@ -58,8 +58,6 @@ def code_sample_py(name):
             "//ortools/init/python:init",
             "//ortools/linear_solver/python:model_builder",
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
     py_test(
@@ -77,8 +75,6 @@ def code_sample_py(name):
             requirement("numpy"),
             requirement("pandas"),
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_java(name):
diff --git a/ortools/pdlp/python/BUILD.bazel b/ortools/pdlp/python/BUILD.bazel
index 9b8f675819a..423313a3f1a 100644
--- a/ortools/pdlp/python/BUILD.bazel
+++ b/ortools/pdlp/python/BUILD.bazel
@@ -42,8 +42,6 @@ py_test(
     data = [
         ":pdlp.so",
     ],
-    python_version = "PY3",
-    srcs_version = "PY3",
     deps = [
         requirement("absl-py"),
         requirement("numpy"),
diff --git a/ortools/sat/samples/code_samples.bzl b/ortools/sat/samples/code_samples.bzl
index 1b5971cafd0..ebe67f14d34 100644
--- a/ortools/sat/samples/code_samples.bzl
+++ b/ortools/sat/samples/code_samples.bzl
@@ -13,10 +13,10 @@
 
 """Helper macro to compile and test code samples."""
 
-load("@rules_go//go:def.bzl", "go_test")
 load("@pip_deps//:requirements.bzl", "requirement")
 load("@rules_cc//cc:cc_binary.bzl", "cc_binary")
 load("@rules_cc//cc:cc_test.bzl", "cc_test")
+load("@rules_go//go:def.bzl", "go_test")
 load("@rules_java//java:java_test.bzl", "java_test")
 load("@rules_python//python:py_binary.bzl", "py_binary")
 load("@rules_python//python:py_test.bzl", "py_test")
@@ -71,8 +71,6 @@ def code_sample_py(name):
             requirement("pandas"),
             "//ortools/sat/python:cp_model",
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
     py_test(
@@ -89,8 +87,6 @@ def code_sample_py(name):
             requirement("pandas"),
             requirement("protobuf"),
         ],
-        python_version = "PY3",
-        srcs_version = "PY3",
     )
 
 def code_sample_cc_go_py(name):