838 articles — Page 9 of 70
How to fix Copier errors — copier.yml not found, conditional questions not appearing, update breaks generated project, migrations between versions, Jinja vs YAML escaping, and answers file conflict.
How to fix Cookiecutter errors — cookiecutter.json not found, variable substitution failed Jinja2, pre/post-generation hooks failed, no_input mode missing values, private repo authentication, and copier vs cookiecutter.
How to fix scalene errors — scalene command not found, web UI port conflict, no GPU detected, profile.json empty, AI optimize requires OpenAI key, native code not attributed, and Jupyter integration.
How to fix py-spy errors — Operation not permitted ptrace, flamegraph blank, missing native code frames, top mode shows no Python frames, dump command empty, and subprocess inheritance.
How to fix Litestar errors — Starlite to Litestar migration, Dependency injection scope, controller route not found, msgspec validation differs from Pydantic, lifespan handler setup, and OpenAPI generation.
How to fix memray errors — memray run command not found, flamegraph shows no data, native allocations not tracked, live mode TUI broken, attach to running process fails, and pytest integration.
How to fix msgspec errors — Struct field type not supported, ValidationError on decode, msgspec vs Pydantic differences, custom type hooks, frozen Struct mutation, and JSON Schema generation.
How to fix attrs errors — attrs.define vs attr.s API confusion, __slots__ inheritance issues, validator not running on assignment, converter type narrowing, cattrs structuring failed, and difference from dataclasses.
How to fix Peewee errors — OperationalError database is locked, connection already open, field type mismatch, model meta database missing, N+1 queries, and peewee-migrate setup.
How to fix Tortoise ORM errors — Tortoise.init not called, no module imported model, fetch_related missing, aerich migration setup, FastAPI integration patterns, and ConfigurationError missing connection.
How to fix conda errors — solving environment takes hours, channel conflicts conda-forge vs defaults, CondaSSLError, conda activate not working in shell, pip and conda mixing breaking env, and mamba/libmamba solver.
How to fix psycopg errors — psycopg2 to psycopg 3 import migration, connection pool setup, row factory tuple vs dict, COPY protocol changes, async psycopg pool, server-side cursor confusion, and binary mode performance.