Error when running make sanity-test: TabError in e2_single_agent example

[Yvemir9]

High Level Description

Hi there! I encountered an issue when running make sanity-test, and below is the full error output I see in the terminal:
(.venv) ubuntu@ubuntu-Legion-Y9000P-IAH7H:~/SMARTS$ make sanity-test
scl scenario build --clean scenarios/sumo/loop
Building: scenarios/sumo/loop
scl scenario build --clean scenarios/sumo/zoo_intersection
Building: scenarios/sumo/zoo_intersection
PYTHONPATH=/home/ubuntu/SMARTS PYTHONHASHSEED=42 pytest -v
--doctest-modules
--forked
--dist=loadscope
--junitxml="sanity_test_result.xml"
-n expr \( \nproc` / 2 & `nproc` > 3 ) | 2`
./smarts/core/tests/test_python_version.py::test_python_version
./smarts/core/tests/test_sumo_version.py::test_sumo_version
./smarts/core/tests/test_dynamics_backend.py::test_set_pose
./smarts/core/tests/test_sensors.py::test_waypoints_sensor
./smarts/core/tests/test_smarts.py::test_smarts_doesnt_leak_tasks_after_reset
./examples/tests/test_examples.py::test_examples[e2_single_agent]
./smarts/env/tests/test_social_agent.py::test_social_agents_not_in_env_obs_keys
/home/ubuntu/.venv/lib/python3.10/site-packages/pytest_benchmark/logger.py:39: PytestBenchmarkWarning: Benchmarks are automatically disabled because xdist plugin is active.Benchmarks cannot be performed reliably in a parallelized environment.
warner(PytestBenchmarkWarning(text))
============================= test session starts ==============================
platform linux -- Python 3.10.12, pytest-8.3.5, pluggy-1.5.0 -- /home/ubuntu/.venv/bin/python3.10
cachedir: .pytest_cache
benchmark: 5.1.0 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /home/ubuntu/SMARTS
configfile: pyproject.toml
plugins: cov-6.1.1, forked-1.6.0, hydra-core-1.3.2, benchmark-5.1.0, xdist-3.6.1
10 workers [7 items]
scheduling tests via LoadScopeScheduling

smarts/core/tests/test_python_version.py::test_python_version
smarts/core/tests/test_sensors.py::test_waypoints_sensor
smarts/core/tests/test_sumo_version.py::test_sumo_version
smarts/core/tests/test_dynamics_backend.py::test_set_pose
examples/tests/test_examples.py::test_examples[e2_single_agent]
smarts/env/tests/test_social_agent.py::test_social_agents_not_in_env_obs_keys
smarts/core/tests/test_smarts.py::test_smarts_doesnt_leak_tasks_after_reset
[gw0] [ 14%] PASSED smarts/core/tests/test_python_version.py::test_python_version
[gw2] [ 28%] PASSED smarts/core/tests/test_dynamics_backend.py::test_set_pose
[gw5] [ 42%] FAILED examples/tests/test_examples.py::test_examples[e2_single_agent]
[gw1] [ 57%] PASSED smarts/core/tests/test_sumo_version.py::test_sumo_version
[gw6] [ 71%] PASSED smarts/env/tests/test_social_agent.py::test_social_agents_not_in_env_obs_keys
[gw3] [ 85%] PASSED smarts/core/tests/test_sensors.py::test_waypoints_sensor
[gw4] [100%] PASSED smarts/core/tests/test_smarts.py::test_smarts_doesnt_leak_tasks_after_reset

=================================== FAILURES ===================================
________________________ test_examples[e2_single_agent] ________________________
[gw5] linux -- Python 3.10.12 /home/ubuntu/.venv/bin/python3.10
example = 'e2_single_agent'

@pytest.mark.parametrize(
    "example",
    [
        "e1_egoless",
        "e2_single_agent",
        "e3_multi_agent",
        "e4_environment_config",
        "e5_agent_zoo",
        "e6_agent_action_space",
        "e7_experiment_base",
        "e8_parallel_environment",
    ],
    # TODO: "ego_open_agent" and "human_in_the_loop" are causing aborts, fix later
)
def test_examples(example):

  current_example = import_module(example, "examples")

examples/tests/test_examples.py:35:

---

/usr/lib/python3.10/importlib/init.py:126: in import_module
return _bootstrap._gcd_import(name[level:], package, level)
:1050: in _gcd_import
???
:1027: in _find_and_load
???
:1006: in _find_and_load_unlocked
???
:688: in _load_unlocked
???
:883: in exec_module
???
:241: in _call_with_frames_removed
???

---

"""This example shows how you might run a SMARTS environment for single-agent work. SMARTS is
natively multi-agent so a single-agent wrapper is used."""
import argparse
import logging
import random
import sys
import warnings
from pathlib import Path
from typing import Final

logging.basicConfig(level=logging.ERROR)
warnings.filterwarnings("ignore")


import gymnasium as gym

SMARTS_REPO_PATH = Path(__file__).parents[1].absolute()
sys.path.insert(0, str(SMARTS_REPO_PATH))
from examples.tools.argument_parser import minimal_argument_parser
from smarts.core.agent import Agent
from smarts.core.agent_interface import AgentInterface, AgentType
from smarts.core.utils.episodes import episodes

from smarts.env.gymnasium.wrappers.single_agent import SingleAgent
E File "/home/ubuntu/SMARTS/smarts/env/gymnasium/wrappers/single_agent.py", line 41
E agent_ids = list(env.unwrapped.agent_interfaces.keys()) # add .unwrapped
E ^
E TabError: inconsistent use of tabs and spaces in indentation

examples/e2_single_agent.py:23: TabError
-------- generated xml file: /home/ubuntu/SMARTS/sanity_test_result.xml --------
=========================== short test summary info ============================
FAILED examples/tests/test_examples.py::test_examples[e2_single_agent]
========================= 1 failed, 6 passed in 2.35s ==========================
make: *** [Makefile:29：sanity-test] 错误 1

Version

System Information:

OS: Ubuntu 22.04

Python Version: 3.10.12

SMARTS Version: Latest clone from the GitHub repository

Additional Information:

The error happens around line 23 in examples/e2_single_agent.py.

When running make sanity-test, all other tests pass, except for the e2_single_agent test.

Could anyone please help me resolve this? Is there a known solution to this indentation error, or am I missing something important?

Operating System

No response

Problems

No response