deprecated-mock-import.md

deprecated-mock-import (UP026)

target-version = "py315"

[lint]
select = ["UP026"]

Only the original module listed

When unittest is absent from __lazy_modules__, the replacement would make the import eager, so the diagnostic has no fix.

__lazy_modules__ = ["mock"]
import mock  # snapshot: deprecated-mock-import

error[UP026]: `mock` is deprecated, use `unittest.mock`
 --> src/mdtest_snippet.py:2:8
  |
2 | import mock  # snapshot: deprecated-mock-import
  |        ^^^^
help: Import from `unittest.mock` instead

Splitting an import with one replacement module listed

Listing unittest preserves laziness for mock, but the fix would make patch eager because unittest.mock is not listed. The diagnostic has no fix.

__lazy_modules__ = ["mock", "unittest"]
from mock import mock, patch  # snapshot: deprecated-mock-import

error[UP026]: `mock` is deprecated, use `unittest.mock`
 --> src/mdtest_snippet.py:2:1
  |
2 | from mock import mock, patch  # snapshot: deprecated-mock-import
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: Import from `unittest.mock` instead

Explicit lazy imports

The replacement imports retain lazy, including when a from import is split.

lazy from mock import mock, patch  # snapshot: deprecated-mock-import
lazy import mock  # snapshot: deprecated-mock-import

error[UP026]: `mock` is deprecated, use `unittest.mock`
 --> src/mdtest_snippet.py:1:1
  |
1 | lazy from mock import mock, patch  # snapshot: deprecated-mock-import
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
help: Import from `unittest.mock` instead
  |
  - lazy from mock import mock, patch  # snapshot: deprecated-mock-import
1 + lazy from unittest.mock import patch
2 + lazy from unittest import mock  # snapshot: deprecated-mock-import
3 | lazy import mock  # snapshot: deprecated-mock-import
  |


error[UP026]: `mock` is deprecated, use `unittest.mock`
 --> src/mdtest_snippet.py:2:13
  |
2 | lazy import mock  # snapshot: deprecated-mock-import
  |             ^^^^
help: Import from `unittest.mock` instead
  |
1 | lazy from mock import mock, patch  # snapshot: deprecated-mock-import
  - lazy import mock  # snapshot: deprecated-mock-import
2 + lazy from unittest import mock  # snapshot: deprecated-mock-import
  |