# issubclass() arg 1 must be a class error on custom recipes **URL:** \ **Category:** Uncategorized\ **Tags:** usage\ **Created:** [January 17, 2024, 5:36am UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033 "2024-01-17T05:36:08Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![cheyanneb](https://sea2.discourse-cdn.com/flex020/user_avatar/support.prodi.gy/cheyanneb/32/2409_2.png) [@cheyanneb](https://support.prodi.gy/u/cheyanneb)\ **Post date:** [January 17, 2024, 5:36am UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033/1 "2024-01-17T05:36:08Z")
Hi, I'm getting an error when I try to run custom recipes. Here are a few examples: **Sample Recipes Causing Error** ```python from typing import Dict, Generator import prodigy from prodigy.components.loaders import JSONL from annotator.recipes.utils import VALIDATION UNLIMITED_ROWS = [ {"view_id": "html", "html_template": "
" + "" + "
{{final_intent_v3}}" + "
" + "
" + "" + "
{{utterance}}" + "
" }, {"view_id": "choice"}, {"view_id": "html", "html_template": "
" + "STT Error" }, {"view_id": "text_input", "field_label": "notes"} ] def add_options( stream, label_field="", choices=VALIDATION ) -> Generator[Dict, None, None]: """ Convert each line in the ``stream`` to a ``task`` with a text and an options field :param stream: the input stream :param label_field: key; defaults to "label" :param choices: the different choices :yield: a task Dict with text and options """ for line in stream: options = [word for word in choices] task = { "final_intent_v3": line["final_intent_v3"], "utterance": line["utterance"], "stt_error": False, "options": [ {"id": o, "deployment": o, "prompt": o, "text": o} for o in options ] } yield task @prodigy.recipe( "intent-validation", dataset=("The dataset to save to", "positional", None, str), file_path=("Path to texts", "positional", None, str) ) def custom_labels(dataset, file_path): """ Annotate the text with labels from the list from the ``label_field`` in the input file. Augmented with choices from ``choice_field``. """ blocks = UNLIMITED_ROWS stream = JSONL(file_path) stream = add_options(stream) # add options to each task javascript = """ // Set stt_error to false by default prodigy.update({ stt_error: false }); function updateSttError() { prodigy.update({ stt_error: document.getElementById('stt_error').checked }); } document.addEventListener('prodigyanswer', (event) => { // Reset stt_error to false prodigy.update({ stt_error: false }); document.getElementById('stt_error').checked = false; }); """ return { "dataset": dataset, "view_id": "blocks", "stream": list(stream), "config": { "blocks": blocks, "javascript": javascript } } ``` **Errors** ```python ✘ Couldn't load Python code: /Users/cheyannebaird/posh/annotation-service/src/annotator/recipes/intent_validation.py issubclass() arg 1 must be a class ``` ```python ✘ Couldn't load Python code: /Users/cheyannebaird/posh/annotation-service/src/annotator/recipes/eup_corpus_validation.py issubclass() arg 1 must be a class ``` ---
**Author:** ![magdaaniol](https://sea2.discourse-cdn.com/flex020/user_avatar/support.prodi.gy/magdaaniol/32/2787_2.png) [@magdaaniol](https://support.prodi.gy/u/magdaaniol)\ **Post date:** [January 18, 2024, 9:56am UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033/2 "2024-01-18T09:56:28Z")
Hi @cheyanneb , It looks like the structure of the task produced by your stream is not as expected (I'm taking a note of this error not being helpful). After the line `stream = add_options(stream)` in the `intent-validation` recipe, could print and share with me the first task in the stream at this point. I suspect it's the transformation that's being done in `add_options` is at fault. Could you also share the example input as well as the content of the `VALIDATION` variable? Final question, why would you convert to stream to a list in the recipe's return statement? Thanks! ---
**Author:** ![cheyanneb](https://sea2.discourse-cdn.com/flex020/user_avatar/support.prodi.gy/cheyanneb/32/2409_2.png) [@cheyanneb](https://support.prodi.gy/u/cheyanneb)\ **Post date:** [January 18, 2024, 6:09pm UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033/3 "2024-01-18T18:09:18Z")
Just wanted to add another instance where I am seeing this error is when I'm trying to use `db-out`: ```python Traceback (most recent call last): File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/runpy.py", line 197, in _run_module_as_main return _run_code(code, main_globals, None, File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/runpy.py", line 87, in _run_code exec(code, run_globals) File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/prodigy/ __main__.py", line 50, in main() File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/prodigy/ __main__.py", line 44, in main controller = run_recipe(run_args) File "cython_src/prodigy/cli.pyx", line 111, in prodigy.cli.run_recipe File "cython_src/prodigy/cli.pyx", line 36, in prodigy.cli.get_cli File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/prodigy/recipes/ __init__.py", line 1, in from . import ( File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/prodigy/recipes/audio.py", line 3, in from ..components.preprocess import fetch_media as fetch_media_preprocessor File "cython_src/prodigy/components/preprocess.pyx", line 7, in init prodigy.components.preprocess File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/ __init__.py", line 13, in from . import pipeline # noqa: F401 File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/pipeline/ __init__.py", line 1, in from .attributeruler import AttributeRuler File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/pipeline/attributeruler.py", line 8, in from ..language import Language File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/language.py", line 42, in from .pipe_analysis import analyze_pipes, print_pipe_analysis, validate_attrs File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/pipe_analysis.py", line 6, in from .tokens import Doc, Span, Token File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/tokens/ __init__.py", line 1, in from ._serialize import DocBin File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/tokens/_serialize.py", line 14, in from ..vocab import Vocab File "spacy/vocab.pyx", line 1, in init spacy.vocab File "spacy/tokens/doc.pyx", line 49, in init spacy.tokens.doc File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/site-packages/spacy/schemas.py", line 272, in class TokenPattern(BaseModel): File "pydantic/main.py", line 197, in pydantic.main.ModelMetaclass. __new__ File "pydantic/fields.py", line 506, in pydantic.fields.ModelField.infer File "pydantic/fields.py", line 436, in pydantic.fields.ModelField. __init__ File "pydantic/fields.py", line 552, in pydantic.fields.ModelField.prepare File "pydantic/fields.py", line 661, in pydantic.fields.ModelField._type_analysis File "pydantic/fields.py", line 668, in pydantic.fields.ModelField._type_analysis File "/opt/homebrew/Caskroom/miniforge/base/envs/prodigy/lib/python3.9/typing.py", line 847, in __subclasscheck__ return issubclass(cls, self. __origin__ ) TypeError: issubclass() arg 1 must be a class ``` ---
**Author:** ![cheyanneb](https://sea2.discourse-cdn.com/flex020/user_avatar/support.prodi.gy/cheyanneb/32/2409_2.png) [@cheyanneb](https://support.prodi.gy/u/cheyanneb)\ **Post date:** [January 19, 2024, 8:53pm UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033/4 "2024-01-19T20:53:26Z")
I edited the recipe in my original post. This recipe works in our development environment with `v1.14.11`, but locally I am still getting this error when I try to run any Prodigy commands. I'm have the latest version of Prodigy (`v1.14.12`), so I may try previous versions to see if I still get this error. ---
**Author:** ![cheyanneb](https://sea2.discourse-cdn.com/flex020/user_avatar/support.prodi.gy/cheyanneb/32/2409_2.png) [@cheyanneb](https://support.prodi.gy/u/cheyanneb)\ **Post date:** [January 22, 2024, 6:31pm UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033/5 "2024-01-22T18:31:46Z")
I am no longer getting this error after reinstalling Prodigy again. I'm not sure why, but it appears to be resolved for now. ---
**Author:** ![magdaaniol](https://sea2.discourse-cdn.com/flex020/user_avatar/support.prodi.gy/magdaaniol/32/2787_2.png) [@magdaaniol](https://support.prodi.gy/u/magdaaniol)\ **Post date:** [January 23, 2024, 8:28am UTC](https://support.prodi.gy/t/issubclass-arg-1-must-be-a-class-error-on-custom-recipes/7033/6 "2024-01-23T08:28:02Z")
OK! Thanks for reporting back.