I started working from feat: Export errors to csv file formats.

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🔄 3 test files added and 3 test files updated to reflect recent changes.
🐛 Found 23 bugs
🛠️ 171/395 tests passed

🔄 Test Updates

I've updated 3 tests. They all pass ☑️
Updated Tests:

• pytype/tools/tool_utils_test.py 🩹

  Fixed: pytype/tools/tool_utils_test.py

• pytype/datatypes_test.py 🩹

  Fixed: pytype/datatypes_test.py

• pytype/inspect/graph_test.py 🩹

  Fixed: pytype/inspect/graph_test.py

🐛 Bug Detection

Potential issues found in the following files:

• pytype/overlays/future_overlay.py

  The traceback indicates an import error occurring while collecting test modules – before any test code actually runs. The error arises when code in the pytype package (specifically, pytype/typegraph/cfg_utils.py) attempts to import the name “cfg” from pytype/typegraph. This suggests that the module "pytype/typegraph/init.py" does not actually export “cfg” even though downstream code expects it. In other words, the issue lies in the module dependency structure of the code being tested rather than in how the tests are written (or a misconfiguration of the test settings).

Since the test code is standard and could be rewritten to test something else, and the test settings aren’t at fault, the error is being caused by a bug in the pytype package – a bug where “cfg” is missing from pytype.typegraph.

Test Error Log

``` pytype/tests/test_future_overlay.py: ImportError while importing test module '/app/temp_workspace/pytype/tests/test_future_overlay.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/tests/test_future_overlay.py:3: in from pytype.tests import test_base pytype/tests/test_base.py:9: in from pytype import analyze pytype/analyze.py:6: in from pytype import context pytype/context.py:6: in from pytype import annotation_utils pytype/annotation_utils.py:9: in from pytype import state pytype/state.py:9: in from pytype import compare pytype/compare.py:3: in from pytype.abstract import abstract pytype/abstract/abstract.py:9: in from pytype.abstract import _base pytype/abstract/_base.py:11: in from pytype.abstract import abstract_utils pytype/abstract/abstract_utils.py:13: in from pytype.pytd import pytd_utils pytype/pytd/pytd_utils.py:18: in from pytype.pytd import printer pytype/pytd/printer.py:8: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/main.py` > The error occurs during the import chain when trying to import “cfg” from the package “pytype.typegraph” (performed inside pytype/typegraph/cfg_utils.py). Python is not able to find a symbol named “cfg” in that package, which strongly indicates that the code being tested is at fault (for example, the package’s __init__.py does not expose the “cfg” module, or the module file “cfg.py” is missing or misnamed). This is not an issue with how the tests are written or configured but rather a bug in the source code structure (or its imports) that prevents the proper resolution of the “cfg” module. Thus, this error is caused by a bug in the code being tested.

Test Error Log

``` pytype/pytd/main_test.py: ImportError while importing test module '/app/temp_workspace/pytype/pytd/main_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/pytd/main_test.py:7: in from pytype.pytd import main as pytd_tool pytype/pytd/main.py:16: in from pytype.imports import builtin_stubs pytype/imports/builtin_stubs.py:6: in from pytype.pyi import parser pytype/pyi/parser.py:15: in from pytype.pyi import definitions pytype/pyi/definitions.py:13: in from pytype.pytd import pep484 pytype/pytd/pep484.py:3: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/vm.py` > The error message shows that when the test attempts to import “from pytype.typegraph import cfg” (via the chain of imports starting in vm_test.py), the module pytype/typegraph/__init__.py does not expose a name “cfg”. In other words, the import is failing because “cfg” isn’t defined or imported within the pytype/typegraph package’s __init__.py. This isn’t an error in the test code itself (which only uses the public API) nor is it a test framework configuration issue; it is a problem in the source code (or the package’s structure) being tested. The broken import chain indicates a bug in how the pytype/typegraph package is set up.

Test Error Log

``` pytype/vm_test.py: ImportError while importing test module '/app/temp_workspace/pytype/vm_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/vm_test.py:23: in from pytype import context pytype/context.py:6: in from pytype import annotation_utils pytype/annotation_utils.py:9: in from pytype import state pytype/state.py:9: in from pytype import compare pytype/compare.py:3: in from pytype.abstract import abstract pytype/abstract/abstract.py:9: in from pytype.abstract import _base pytype/abstract/_base.py:11: in from pytype.abstract import abstract_utils pytype/abstract/abstract_utils.py:13: in from pytype.pytd import pytd_utils pytype/pytd/pytd_utils.py:18: in from pytype.pytd import printer pytype/pytd/printer.py:8: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/rewrite/operators.py` > The error occurs during the import phase because the module "pytype/typegraph/__init__.py" does not provide the "cfg" attribute that is being imported by "pytype/typegraph/cfg_utils.py". The test “operators_test.py” is importing "pytype.rewrite.operators", which in turn imports modules that eventually try to import "cfg". This chain of imports fails, but the failure isn’t caused by the test itself, its settings, or its imports; it’s an issue in the code/package (or its structure) being tested. The expected component (a properly defined or re-exported "cfg" from the "pytype.typegraph" package) is missing, which indicates a bug in the code.

Test Error Log

``` pytype/rewrite/operators_test.py: ImportError while importing test module '/app/temp_workspace/pytype/rewrite/operators_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/rewrite/operators_test.py:3: in from pytype.rewrite import operators pytype/rewrite/operators.py:5: in from pytype.rewrite.abstract import abstract pytype/rewrite/abstract/abstract.py:3: in from pytype.rewrite.abstract import base as _base pytype/rewrite/abstract/base.py:7: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/load_pytd.py` > The error occurs during the import chain when the test suite begins to load the test module. The test module’s import of pytype.config (and thereby pytype.debug and pytype.typegraph.cfg_utils) causes the code to execute a statement that does “from pytype.typegraph import cfg”. The error message indicates that the package (pytype/typegraph/__init__.py) does not export a name “cfg” (or possibly the module “cfg” is missing), causing an ImportError. This issue is not due to how the test itself is written (a different test could be written that does not trigger such an import) nor is it about misconfiguration of the test settings (everything about the module names and pythonpath seems standard). Instead, it points to a problem in the code being tested – either the package pytype/typegraph is missing the necessary implementation for “cfg” or its __init__.py is incomplete. Therefore, the error is caused by a bug in the code that’s being imported.

Test Error Log

``` pytype/load_pytd_test.py: ImportError while importing test module '/app/temp_workspace/pytype/load_pytd_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/load_pytd_test.py:10: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/directors/parser.py` > The error “cannot import name 'cfg' from 'pytype.typegraph'” is raised during the import chain starting in the test module when the code in pytype/typegraph/cfg_utils.py tries to load “cfg” from the package “pytype.typegraph.” This is not due to the way the test itself is written (or because of its imports), nor is it solely a misconfiguration of the test settings. Instead, the failure indicates that the code being tested (or its internal package structure) is attempting to import a name (“cfg”) that either does not exist in pytype/typegraph/__init__.py or is not being exported as expected. Therefore, the test is failing because of a bug (or misimplementation) in the codebase rather than how the test is written.

Test Error Log

``` pytype/pyi/parser_test.py: ImportError while importing test module '/app/temp_workspace/pytype/pyi/parser_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/pyi/parser_test.py:5: in from pytype.pyi import parser pytype/pyi/parser.py:15: in from pytype.pyi import definitions pytype/pyi/definitions.py:13: in from pytype.pytd import pep484 pytype/pytd/pep484.py:3: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/convert.py` > The error occurs when one of the modules (e.g. pytype/typegraph/cfg_utils.py) attempts to import “cfg” from the package “pytype.typegraph”, but that name is not exported in the package’s __init__.py file (or is missing altogether). The test itself only triggers the import chain when it loads a module in the codebase. There is nothing inherently wrong with the test code or its imports, and it would be possible to write alternative tests if the code were set up correctly. Instead, the error indicates that the source code’s package structure (or the __init__.py exports) is misconfigured with regard to the intended “cfg” module. Therefore, the error is caused by a bug in the code being tested.

Test Error Log

``` pytype/convert_test.py: ImportError while importing test module '/app/temp_workspace/pytype/convert_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/convert_test.py:3: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/analyze.py` > The error occurs during module import. When the test module (analyze_test.py) starts importing pytype.config and further downstream, the chain of imports eventually leads to "from pytype.typegraph import cfg" in cfg_utils.py. The error message   ImportError: cannot import name 'cfg' from 'pytype.typegraph' indicates that the expected name "cfg" is not present in the pytype.typegraph package (i.e. in its __init__.py). This is not a problem with the way the test is written or set up – even a different test would encounter the same import error if it accesses the module chain. Instead, the issue is with the code base: the module pytype.typegraph either does not expose the expected "cfg" or there is an inconsistency in its package structure. Therefore, this is a bug in the code being tested.

Test Error Log

``` pytype/rewrite/analyze_test.py: ImportError while importing test module '/app/temp_workspace/pytype/rewrite/analyze_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/rewrite/analyze_test.py:1: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/tools/arg_parser.py` > The error occurs during module import – specifically, when the test file (pytype/tools/arg_parser_test.py) tries indirectly to import pytype/config.py which in turn imports pytype/errors/errors.py, then pytype/debug.py, then pytype/typegraph/cfg_utils.py, and finally attempts to import “cfg” from the pytype/typegraph package. The error “cannot import name 'cfg' from 'pytype.typegraph'” indicates that the expected “cfg” module (or symbol) is not available from that package. This problem isn’t due to the specific tests or their settings; the test isn’t written incorrectly or using inappropriate imports. Instead, it shows that the package’s module structure (or the code in the package) is missing the “cfg” module or is not exporting it where it’s expected. Thus, this error is caused by a bug in the code being tested rather than by how the test is written or configured.

Test Error Log

``` pytype/tools/arg_parser_test.py: ImportError while importing test module '/app/temp_workspace/pytype/tools/arg_parser_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/tools/arg_parser_test.py:6: in from pytype import config as pytype_config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/pretty_printer.py` > The error occurs during the import phase. The traceback shows that the test module imports pytype.config, which in turn imports components such as pytype.errors.errors (and then pytype.debug, etc.). The chain of imports eventually attempts to import "cfg" from "pytype.typegraph" (via the line "from pytype.typegraph import cfg" in debug.py). However, Python cannot find a name "cfg" in the package "pytype.typegraph". This issue is not due to the test itself; the test merely triggers a module import which then fails. Furthermore, the error points to the package/module structure and indicates that the "cfg" module or its export is missing or misconfigured. In other words, the problem is with the code package (or its configuration) rather than with the test's logic or its imports.

Test Error Log

``` pytype/pretty_printer_test.py: ImportError while importing test module '/app/temp_workspace/pytype/pretty_printer_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/pretty_printer_test.py:3: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/block_environment.py` > The error occurs when the test runner tries to import the module "pytype.block_environment". Inside that module there is the statement   from pytype.typegraph import cfg However, the package "pytype.typegraph" (i.e. its __init__.py) does not actually export or provide a module/object called "cfg". This causes an ImportError before any real testing takes place. Since nothing in the test itself (or its imports) forces this error—and a different test that did not trigger this import would work—the issue stems from the code being tested. Specifically, the code assumes that "cfg" is available from "pytype.typegraph", but the package structure or __init__.py hasn’t made it available. This is a bug in the code/module setup rather than in the test.

Test Error Log

``` pytype/block_environment_test.py: ImportError while importing test module '/app/temp_workspace/pytype/block_environment_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/block_environment_test.py:5: in from pytype import block_environment pytype/block_environment.py:4: in from pytype.blocks import blocks pytype/blocks/blocks.py:9: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/config.py` > The error occurs during module import. When the test module imports pytype.config, it triggers a chain of imports until it reaches pytype/typegraph/cfg_utils.py where the statement “from pytype.typegraph import cfg” is executed. That import fails because there is no symbol named “cfg” available from the pytype.typegraph package (its __init__.py does not provide it). Since this problem happens on import and is not related to any particular test case, nor is it something that could be fixed by writing a different test or adjusting test import settings, the error is due to a bug in the code being tested (or the packaging of the code). /bug

Test Error Log

``` pytype/config_test.py: ImportError while importing test module '/app/temp_workspace/pytype/config_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/config_test.py:6: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/tools/analyze_project/pytype_runner.py` > The error message indicates that during module import a symbol ('cfg') is expected to be available from "pytype.typegraph" but is not found. Note that the test file itself does not attempt to import "cfg"; rather, it indirectly imports it through the chain of modules (pytype/config.py → pytype/errors/errors.py → pytype/debug.py → pytype/typegraph/cfg_utils.py). This means that the problem lies in the code being tested (or its packaging/setup) rather than in the test itself or its configuration. One would expect the module "pytype.typegraph.cfg" to be available (or properly exported via the __init__.py file) for cfg_utils.py to successfully import "cfg". Therefore, this error is caused by a bug (or mis-packaging) in the code being tested.

Test Error Log

``` pytype/tools/analyze_project/pytype_runner_test.py: ImportError while importing test module '/app/temp_workspace/pytype/tools/analyze_project/pytype_runner_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/tools/analyze_project/pytype_runner_test.py:9: in from pytype import config as pytype_config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/tools/merge_pyi/merge_pyi.py` > The ImportError occurs because the module "pytype/typegraph/cfg_utils.py" tries to import a name 'cfg' from "pytype/typegraph", but that attribute isn’t present. The error propagates as soon as the test module imports merge_pyi, and then the chain of imports eventually reaches the failing line. This indicates that the code being tested (or one of its dependencies) is assuming that there is a "cfg" attribute in the "pytype.typegraph" package when in fact there isn’t. The test itself is not doing anything peculiar (and could be rewritten differently) so the problem does not lie in the test’s imports or structure, nor in the test configuration settings. The error is a direct consequence of a bug in the code under test.

Test Error Log

``` pytype/tools/merge_pyi/merge_pyi_test.py: ImportError while importing test module '/app/temp_workspace/pytype/tools/merge_pyi/merge_pyi_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/tools/merge_pyi/merge_pyi_test.py:8: in from pytype.tools.merge_pyi import merge_pyi pytype/tools/merge_pyi/merge_pyi.py:13: in from pytype.imports import pickle_utils pytype/imports/pickle_utils.py:37: in from pytype.pytd import serialize_ast pytype/pytd/serialize_ast.py:10: in from pytype.pyi import parser pytype/pyi/parser.py:15: in from pytype.pyi import definitions pytype/pyi/definitions.py:13: in from pytype.pytd import pep484 pytype/pytd/pep484.py:3: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/imports_map_loader.py` > The error occurs during module import before any test logic runs. The traceback shows that when importing the test module, a chain of imports reaches the file pytype/typegraph/cfg_utils.py, which attempts to import “cfg” from the pytype.typegraph package. However, the “cfg” symbol isn’t available (or isn’t defined) in the package’s __init__.py, leading to an ImportError. This error is not caused by how the tests are written or by their settings; instead, it indicates that the codebase (or package structure) is missing the expected “cfg” module or definition. Thus, regardless of whether an alternative test were written, the error would still occur because the module dependency in the code being imported is broken.

Test Error Log

``` pytype/imports_map_loader_test.py: ImportError while importing test module '/app/temp_workspace/pytype/imports_map_loader_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/imports_map_loader_test.py:8: in from pytype.tests import test_utils pytype/tests/test_utils.py:17: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/debug.py` > The error occurs when the test runner tries to import the module “pytype.debug,” which in turn imports “cfg_utils” from “pytype.typegraph.” There, the following line fails:   from pytype.typegraph import cfg This indicates that the module “cfg” is not available (or not correctly exposed) in the package “pytype.typegraph” (i.e. in its __init__.py, “cfg” is not present). Because the tests themselves are standard and pass the expected inputs, and because the failure is an ImportError arising from the module’s internal imports, the error is not caused by the test writing or its imports. Instead, the module that is being imported (pytype.typegraph.cfg) is either missing or not properly advertised in the package’s __init__.py, which means the error is due to a bug or misconfiguration in the source code/package layout being tested. Given that these unit tests assume that cfg is importable from pytype.typegraph, one should correct the package configuration (or the import paths) rather than change the tests. Thus, the error is caused by a bug in the code being tested (or its package configuration). /bug

Test Error Log

``` pytype/debug_test.py: ImportError while importing test module '/app/temp_workspace/pytype/debug_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/debug_test.py:5: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/imports/builtin_stubs.py` > The error is occurring during module import, specifically when trying to import “cfg” from the package “pytype.typegraph.” The traceback shows that an import in pytype/typegraph/cfg_utils.py is failing because pytype/typegraph/__init__.py does not export “cfg.” This isn’t a problem with the test code or its configuration (for example, naming of the test module); rather, it indicates that the code under test (or one of its dependencies) is improperly set up or is missing a required export. In other words, the code being tested has a bug or misconfiguration in its module/package structure.

Test Error Log

``` pytype/imports/builtin_stubs_test.py: ImportError while importing test module '/app/temp_workspace/pytype/imports/builtin_stubs_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/imports/builtin_stubs_test.py:4: in from pytype.imports import builtin_stubs pytype/imports/builtin_stubs.py:6: in from pytype.pyi import parser pytype/pyi/parser.py:15: in from pytype.pyi import definitions pytype/pyi/definitions.py:13: in from pytype.pytd import pep484 pytype/pytd/pep484.py:3: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/io.py` > The error message shows an ImportError while trying to import "cfg" from the package "pytype.typegraph". The chain of imports goes from io_test.py → pytype/config.py → pytype/errors/errors.py → pytype/debug.py → pytype/typegraph/cfg_utils.py. In cfg_utils.py, the code attempts:   from pytype.typegraph import cfg but the __init__.py in the pytype/typegraph package does not provide (or expose) a name “cfg”. This indicates that the error is not due to the way the tests are written or their settings, but rather that there is a bug (or misconfiguration) in the code being tested regarding the module’s exports. Thus, this is a code bug.

Test Error Log

``` pytype/io_test.py: ImportError while importing test module '/app/temp_workspace/pytype/io_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/io_test.py:9: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/pytd/pep484.py` > The error happens during the import of the module pytype.pytd.pep484. While that module looks fine, it in turn imports from pytype.pytd.base_visitor, and that module tries to import “cfg” from pytype.typegraph. The error message   cannot import name 'cfg' from 'pytype.typegraph' indicates that the package pytype.typegraph does not provide the expected “cfg” (e.g. either no file “cfg.py” exists or it isn’t exposed properly in the package’s __init__.py). The test file itself is not written in a problematic way—its imports and naming follow standard practices. A differently written test would still hit the same issue because the problem arises with the code’s import structure or the package’s implementation of pytype.typegraph. Thus, the error is caused by the code being tested (or its packaging) not providing the expected “cfg” module, not due to the test design or test configuration.

Test Error Log

``` pytype/pytd/pep484_test.py: ImportError while importing test module '/app/temp_workspace/pytype/pytd/pep484_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/pytd/pep484_test.py:1: in from pytype.pytd import pep484 pytype/pytd/pep484.py:3: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/pytd/serialize_ast.py` > The error shows up during test collection when the test module (serialize_ast_test.py) is imported. The traceback indicates that the import chain (pytype → config → errors → debug → typegraph.cfg_utils) fails because the symbol “cfg” cannot be imported from the package pytype.typegraph. This is not due to the test code itself or its imports; the test simply triggers the package imports. Instead, the problem is in the module code—specifically, pytype/typegraph/__init__.py does not expose (or even possibly define) the attribute “cfg” as expected by cfg_utils.py. This looks like an issue in the package/module organization or in the implementation of pytype.typegraph rather than a misconfiguration of the test runner.

Thus, the error is caused by a bug/missing definition in the code being tested, not by how the test was written or configured.

Test Error Log

``` pytype/pytd/serialize_ast_test.py: ImportError while importing test module '/app/temp_workspace/pytype/pytd/serialize_ast_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/pytd/serialize_ast_test.py:3: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/directors/annotations.py` > The error message occurs during the test‐collection phase because one of the modules in the dependency chain (pytype/typegraph/cfg_utils.py) tries to import “cfg” from pytype.typegraph. However, the __init__.py file in that package does not provide a “cfg” name. This is not an issue due to a mistake in the test code itself or its imports nor of any misconfiguration in the test settings. Rather, it shows that the package’s code (or its packaging structure) is faulty—either the module “cfg” is missing or the export in pytype/typegraph/__init__.py is incorrect. Therefore, the root cause is a bug in the code being tested.

Test Error Log

``` pytype/tests/test_annotations.py: ImportError while importing test module '/app/temp_workspace/pytype/tests/test_annotations.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/tests/test_annotations.py:3: in from pytype.tests import test_base pytype/tests/test_base.py:9: in from pytype import analyze pytype/analyze.py:6: in from pytype import context pytype/context.py:6: in from pytype import annotation_utils pytype/annotation_utils.py:9: in from pytype import state pytype/state.py:9: in from pytype import compare pytype/compare.py:3: in from pytype.abstract import abstract pytype/abstract/abstract.py:9: in from pytype.abstract import _base pytype/abstract/_base.py:11: in from pytype.abstract import abstract_utils pytype/abstract/abstract_utils.py:13: in from pytype.pytd import pytd_utils pytype/pytd/pytd_utils.py:18: in from pytype.pytd import printer pytype/pytd/printer.py:8: in from pytype.pytd import base_visitor pytype/pytd/base_visitor.py:8: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/tools/xref/indexer.py` > The error occurs as soon as the test module is imported because one of the upstream modules (pytype/config.py) eventually leads to importing from pytype/typegraph. In particular, in pytype/typegraph/cfg_utils.py there is a statement   from pytype.typegraph import cfg but the package's __init__.py in pytype/typegraph does not export or define “cfg”. This is not a flaw in the test code or its setup (you could write a different test that does not trigger that import chain) but rather an issue with the production code’s module dependencies. In other words, the code being tested is attempting to import a symbol that isn’t available (or properly exposed) in the package, causing an ImportError before any tests run.

Test Error Log

``` pytype/tools/xref/indexer_test.py: ImportError while importing test module '/app/temp_workspace/pytype/tools/xref/indexer_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/tools/xref/indexer_test.py:4: in from pytype import config pytype/config.py:20: in from pytype.errors import errors pytype/errors/errors.py:11: in from pytype import debug pytype/debug.py:12: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

- `pytype/utils.py` > The error message   "ImportError: cannot import name 'cfg' from 'pytype.typegraph'" occurs during the import chain when the test module (test_utils_test.py) indirectly imports pytype/blocks/blocks.py, which in turn imports pytype/typegraph/cfg_utils.py. In that module, there’s an attempted import of “cfg” from pytype/typegraph/__init__.py. Since the __init__.py in pytype/typegraph does not provide a name “cfg”, the import fails. This is not caused by how the test is written or by any misconfiguration of the test settings (which might cause module discovery issues or broken names). The problem lies in the code being imported—specifically, the dependency on a nonexistent “cfg” within pytype/typegraph indicates a bug in the codebase (or at least in the module’s public API). Therefore, the error is caused by a bug in the code under test.

Test Error Log

``` pytype/rewrite/tests/test_utils_test.py: ImportError while importing test module '/app/temp_workspace/pytype/rewrite/tests/test_utils_test.py'. Hint: make sure your test modules/packages have valid Python names. Traceback: /usr/local/lib/python3.11/importlib/__init__.py:126: in import_module return _bootstrap._gcd_import(name[level:], package, level) pytype/rewrite/tests/test_utils_test.py:4: in from pytype.rewrite.tests import test_utils pytype/rewrite/tests/test_utils.py:8: in from pytype.blocks import blocks pytype/blocks/blocks.py:9: in from pytype.typegraph import cfg_utils pytype/typegraph/cfg_utils.py:7: in from pytype.typegraph import cfg E ImportError: cannot import name 'cfg' from 'pytype.typegraph' (/app/temp_workspace/pytype/typegraph/__init__.py) ```

☂️ Coverage Improvements

Coverage improvements by file:

• pytype/tools/tool_utils_test.py

  New coverage: 100.00%
  Improvement: +100.00%

• pytype/datatypes_test.py

  New coverage: 81.20%
  Improvement: +81.20%

• pytype/inspect/graph_test.py

  New coverage: 77.19%
  Improvement: +77.19%

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