rename main_py arg

Author: rickeylev

python/private/py_executable.bzl

@@ -1269,7 +1269,7 @@ def py_executable_base_impl(ctx, *, semantics, is_test, inherited_environment =
         build_data_file = runfiles_details.build_data_file,
         interpreter_args = ctx.attr.interpreter_args,
         interpreter_path = runtime_details.executable_interpreter_path,
-        main = main_py,
+        main_py = main_py,
         runfiles_without_exe = runfiles_details.runfiles_without_exe,
         stage2_bootstrap = exec_result.stage2_bootstrap,
         venv_interpreter_runfiles = exec_result.venv_interpreter_runfiles,
@@ -1880,7 +1880,7 @@ def _add_provider_py_executable_info(
         build_data_file,
         interpreter_args,
         interpreter_path,
-        main,
+        main_py,
         runfiles_without_exe,
         stage2_bootstrap,
         venv_interpreter_runfiles,
@@ -1894,7 +1894,7 @@ def _add_provider_py_executable_info(
         build_data_file: File; a file with build stamp information.
         interpreter_args: list of strings; arguments to pass to the interpreter.
         interpreter_path: str; path to the Python interpreter.
-        main: File; the main .py entry point.
+        main_py: File; the main .py entry point.
         runfiles_without_exe: runfiles; the default runfiles, but without the executable.
         stage2_bootstrap: File; the stage 2 bootstrap script.
         venv_interpreter_runfiles: runfiles; runfiles specific to the interpreter for the venv.
@@ -1906,7 +1906,7 @@ def _add_provider_py_executable_info(
         build_data_file = build_data_file,
         interpreter_args = interpreter_args,
         interpreter_path = interpreter_path,
-        main = main,
+        main = main_py,
         runfiles_without_exe = runfiles_without_exe,
         stage2_bootstrap = stage2_bootstrap,
         venv_interpreter_runfiles = venv_interpreter_runfiles,