Test disallow str iteration against mypy primer

[michaelm-openai]

No description provided.

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

optuna (https://github.com/optuna/optuna)
+ tests/samplers_tests/test_grid.py:52: error: Non-overlapping equality check (left operand type: "set[tuple[str | float | int | None, ...]]", right operand type: "set[tuple[Sequence[str | float | int | bool | None], ...]]")  [comparison-overlap]

zulip (https://github.com/zulip/zulip)
+ zerver/tests/test_invite.py:239: error: Need type annotation for "payload"  [var-annotated]

scrapy (https://github.com/scrapy/scrapy)
- scrapy/http/request/form.py:109: error: Redundant cast to "Iterable[str]"  [redundant-cast]

cki-lib (https://gitlab.com/cki-project/cki-lib)
- tests/kcidb/test_validate.py:348: error: Value of type "Collection[Collection[str]]" is not indexable  [index]
+ tests/kcidb/test_validate.py:348: error: Value of type "Collection[object]" is not indexable  [index]
- tests/kcidb/test_validate.py:384: error: Value of type "Collection[Collection[str]]" is not indexable  [index]
+ tests/kcidb/test_validate.py:384: error: Value of type "Collection[object]" is not indexable  [index]
- tests/kcidb/test_validate.py:398: error: Value of type "Collection[Collection[str]]" is not indexable  [index]
+ tests/kcidb/test_validate.py:398: error: Value of type "Collection[object]" is not indexable  [index]

core (https://github.com/home-assistant/core)
+ homeassistant/helpers/template/extensions/collection.py:92: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:133: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:135: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:142: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:144: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:151: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:153: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:162: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/helpers/template/extensions/collection.py:166: error: Subclass of "Iterable[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]
+ homeassistant/components/reolink/util.py:73: error: Type argument "str" of "Store" must be a subtype of "Mapping[str, Any] | Sequence[Any]"  [type-var]
+ homeassistant/components/reolink/util.py:75: error: Value of type variable "_T" of "Store" cannot be "str"  [type-var]
+ homeassistant/components/reolink/host.py:183: error: Type argument "str" of "Store" must be a subtype of "Mapping[str, Any] | Sequence[Any]"  [type-var]
+ homeassistant/components/met_eireann/weather.py:39: error: Unsupported right operand type for in ("object")  [operator]

urllib3 (https://github.com/urllib3/urllib3)
- src/urllib3/_collections.py:359: error: Redundant cast to "Iterable[tuple[str, str]]"  [redundant-cast]

pandas (https://github.com/pandas-dev/pandas)
+ pandas/io/formats/style_render.py:377: error: "object" has no attribute "extend"  [attr-defined]
+ pandas/io/formats/style_render.py:378: error: "object" has no attribute "extend"  [attr-defined]
+ pandas/io/formats/style_render.py:379: error: "object" has no attribute "extend"  [attr-defined]
+ pandas/tests/test_sorting.py:358: error: Value of type variable "_ScalarT" of "array" cannot be "object"  [type-var]
+ pandas/tests/test_sorting.py:359: error: Value of type variable "_ScalarT" of "array" cannot be "object"  [type-var]
+ pandas/tests/indexes/interval/test_constructors.py:150: error: Value of type variable "_ScalarT" of "array" cannot be "object"  [type-var]

ibis (https://github.com/ibis-project/ibis)
- ibis/expr/types/strings.py:958: error: Need type annotation for "pattern"  [var-annotated]
- ibis/expr/types/strings.py:1002: error: Need type annotation for "pattern"  [var-annotated]

black (https://github.com/psf/black)
+ src/blib2to3/pytree.py:660:35: error: Subclass of "Iterable[str]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]

pandas-stubs (https://github.com/pandas-dev/pandas-stubs)
+ tests/test_plotting.py:546: error: Expression is of type "Any", not "Axes"  [assert-type]
+ tests/series/test_series.py:2467: error: Expression is of type "Any | None", not "str | None"  [assert-type]
+ tests/series/test_series.py:2468: error: Expression is of type "Any | None", not "str | None"  [assert-type]
+ tests/series/test_series.py:2469: error: Expression is of type "Any | None", not "str | None"  [assert-type]
+ tests/series/test_series.py:2470: error: Expression is of type "Any | None", not "str | None"  [assert-type]
+ tests/series/test_series.py:2471: error: Expression is of type "Any", not "str"  [assert-type]
+ tests/series/test_series.py:2472: error: Expression is of type "Any", not "str | bool"  [assert-type]

apprise (https://github.com/caronc/apprise)
- apprise/apprise.py:850: error: "Collection[str]" has no attribute "append"  [attr-defined]
+ apprise/apprise.py:850: error: "object" has no attribute "append"  [attr-defined]

materialize (https://github.com/MaterializeInc/materialize)
- misc/python/materialize/cli/orchestratord.py:312: error: Unsupported target for indexed assignment ("Collection[str]")  [index]
+ misc/python/materialize/cli/orchestratord.py:312: error: Unsupported target for indexed assignment ("object")  [index]
- misc/python/materialize/cli/orchestratord.py:315: error: Unsupported target for indexed assignment ("Collection[str]")  [index]
+ misc/python/materialize/cli/orchestratord.py:315: error: Unsupported target for indexed assignment ("object")  [index]

mkdocs (https://github.com/mkdocs/mkdocs)
+ mkdocs/config/config_options.py:371: error: Subclass of "Collection[T]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]

rotki (https://github.com/rotki/rotki)
+ rotkehlchen/chain/arbitrum_one/modules/gmx/balances.py:140: error: Value of type "object" is not indexable  [index]
+ rotkehlchen/chain/arbitrum_one/modules/gmx/balances.py:147: error: Value of type "object" is not indexable  [index]

static-frame (https://github.com/static-frame/static-frame)
+ static_frame/core/type_blocks.py:408: error: Subclass of "Sequence[Any]" and "str" cannot exist: would have inconsistent method resolution order  [unreachable]

cloud-init (https://github.com/canonical/cloud-init)
- tests/unittests/sources/test_lxd.py:325: error: Statement is unreachable  [unreachable]

xarray (https://github.com/pydata/xarray)
+ xarray/namedarray/utils.py:181: error: "yield from" can't be applied to "str | Iterable[Hashable]"  [misc]

nox (https://github.com/wntrblm/nox)
+ nox/_option_set.py:52: error: Value of type variable "_I" of "deep_iterable" cannot be "str"  [type-var]```