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https://github.com/NousResearch/hermes-agent.git
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teknium1 hit ModuleNotFoundError: No module named 'hermes_bootstrap' after a code update, on both his Windows machine AND his Linux workstation. The failure mode is real and affects every user who updates hermes by any path OTHER than a fully-successful ``hermes update``. ## What happens hermes_bootstrap.py is a top-level module registered via pyproject.toml's ``py-modules`` list (added by Brooklyn's Windows UTF-8 stdio work). It must be registered in the venv's editable-install .pth file before Python can find it as a bare ``import hermes_bootstrap``. ``hermes update`` handles this correctly: (1) git reset --hard, (2) clear __pycache__, (3) uv pip install -e . (re-registers the package including the new py-modules list), (4) restart. BUT if any step AFTER (1) fails — network blip during pip install, PEP 668 on a system Python, venv locked, uv not in PATH, a crash mid-update — the user is left with new code that references hermes_bootstrap and a venv that doesn't know about it. Every hermes invocation after that crashes with ModuleNotFoundError, including ``hermes update`` itself. No recovery path without manual `uv pip install -e .`. Also affects users who ``git pull`` the repo directly without running hermes update — relatively common for developers. ## Fix Wrap ``import hermes_bootstrap`` in a try/except ModuleNotFoundError across all 6 entry points (hermes_cli/main, run_agent, gateway/run, acp_adapter/entry, cli, batch_runner). On Windows, missing bootstrap means the UTF-8 stdio setup doesn't run — degraded behavior (Unicode chars may fail to print) but NOT a crash. POSIX is unaffected either way since the bootstrap is a no-op there. Once hermes is running again, the user can ``hermes update`` to fully recover. ## Test update tests/test_hermes_bootstrap.py::test_entry_point_imports_bootstrap scans for the first top-level import in each entry point and asserts it is hermes_bootstrap. Extended the check to accept a Try block whose body is a lone Import of hermes_bootstrap — that's the recovery-friendly form we just introduced. Verified behavior by ``mv hermes_bootstrap.py hermes_bootstrap.py.bak`` and confirming ``python -c "import hermes_cli.main"`` succeeds. 82/82 tests pass (hermes_bootstrap + windows-native + windows-compat). |
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| .. | ||
| acp | ||
| acp_adapter | ||
| agent | ||
| cli | ||
| cron | ||
| e2e | ||
| environments/benchmarks | ||
| fakes | ||
| gateway | ||
| hermes_cli | ||
| hermes_state | ||
| honcho_plugin | ||
| integration | ||
| openviking_plugin | ||
| plugins | ||
| providers | ||
| run_agent | ||
| skills | ||
| stress | ||
| tools | ||
| tui_gateway | ||
| website | ||
| __init__.py | ||
| conftest.py | ||
| run_interrupt_test.py | ||
| test_account_usage.py | ||
| test_atomic_replace_symlinks.py | ||
| test_base_url_hostname.py | ||
| test_batch_runner_checkpoint.py | ||
| test_cli_file_drop.py | ||
| test_cli_manual_compress.py | ||
| test_cli_skin_integration.py | ||
| test_ctx_halving_fix.py | ||
| test_empty_model_fallback.py | ||
| test_evidence_store.py | ||
| test_get_tool_definitions_cache_isolation.py | ||
| test_hermes_bootstrap.py | ||
| test_hermes_constants.py | ||
| test_hermes_home_profile_warning.py | ||
| test_hermes_logging.py | ||
| test_hermes_state.py | ||
| test_honcho_client_config.py | ||
| test_install_sh_pythonpath_sanitization.py | ||
| test_install_sh_setup_wizard_tty_probe.py | ||
| test_install_sh_termux_network_prereqs.py | ||
| test_ipv4_preference.py | ||
| test_lazy_session_regressions.py | ||
| test_lint_config.py | ||
| test_mcp_serve.py | ||
| test_mini_swe_runner.py | ||
| test_minimax_model_validation.py | ||
| test_minimax_oauth.py | ||
| test_minisweagent_path.py | ||
| test_model_picker_scroll.py | ||
| test_model_tools.py | ||
| test_model_tools_async_bridge.py | ||
| test_ollama_num_ctx.py | ||
| test_packaging_metadata.py | ||
| test_plugin_skills.py | ||
| test_process_loop_event_loop_warning.py | ||
| test_project_metadata.py | ||
| test_retry_utils.py | ||
| test_sql_injection.py | ||
| test_subprocess_home_isolation.py | ||
| test_termux_all_extra_compat.py | ||
| test_timezone.py | ||
| test_toolset_distributions.py | ||
| test_toolsets.py | ||
| test_trajectory_compressor.py | ||
| test_trajectory_compressor_async.py | ||
| test_transform_llm_output_hook.py | ||
| test_transform_tool_result_hook.py | ||
| test_tui_gateway_server.py | ||
| test_utils_truthy_values.py | ||
| test_yuanbao_integration.py | ||
| test_yuanbao_markdown.py | ||
| test_yuanbao_pipeline.py | ||
| test_yuanbao_proto.py | ||