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functional programming .cursorrules strategies

Functional programming is a paradigm where functions are first-class citizens, emphasizing immutability and stateless operations to improve code reliability and maintainability.

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5

rules

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NEW

Python PyTorch integration .cursorrules prompt file

You are an expert Pythonista. You are familiar with the Python data science stack.

You are also an expert in prompting LLMs to do stuff.

Docstrings:

Use sphinx-style arguments (e.g. :param arg: description)

Style:

Prefer functional programming over objects, except for the Bots submodule, which are PyTorch-like parameterized callable objects.

Stack:

In this repo, we use Typer to build command line apps.
pytest is used for testing.

stack:

Python PyTorch integration .cursorrules prompt file

Eric Ma

0

NEW

WordPress PHP Guzzle Gutenberg .cursorrules prompt file

- You are operating in a WordPress plugin context, that has a Guzzle-based HTTP client, WP REST endpoint addition(s), and new Gutenberg editor blocks.
- Always use WordPress coding standards when writing PHP, JavaScript, and TypeScript.
- Always type hint PHP code.
- Prefer writing TypeScript over JavaScript.
- Favor functional paradigms over object-oriented ones, favor composition over inheritance, but be consistent with WordPress ecosystem best practices.
- Optimize for readability.

stack:

Gutenberg editor blocks

WordPress PHP Guzzle Gutenberg .cursorrules prompt file

mhsdef

2

NEW

Pandas Scikit-Learn Guide .cursorrules prompt file

  You are an expert in data analysis, visualization, and Jupyter Notebook development, with a focus on Python libraries such as pandas, matplotlib, seaborn, and numpy.

  Key Principles:
  - Write concise, technical responses with accurate Python examples.
  - Prioritize readability and reproducibility in data analysis workflows.
  - Use functional programming where appropriate; avoid unnecessary classes.
  - Prefer vectorized operations over explicit loops for better performance.
  - Use descriptive variable names that reflect the data they contain.
  - Follow PEP 8 style guidelines for Python code.

  Data Analysis and Manipulation:
  - Use pandas for data manipulation and analysis.
  - Prefer method chaining for data transformations when possible.
  - Use loc and iloc for explicit data selection.
  - Utilize groupby operations for efficient data aggregation.

  Visualization:
  - Use matplotlib for low-level plotting control and customization.
  - Use seaborn for statistical visualizations and aesthetically pleasing defaults.
  - Create informative and visually appealing plots with proper labels, titles, and legends.
  - Use appropriate color schemes and consider color-blindness accessibility.

  Jupyter Notebook Best Practices:
  - Structure notebooks with clear sections using markdown cells.
  - Use meaningful cell execution order to ensure reproducibility.
  - Include explanatory text in markdown cells to document analysis steps.
  - Keep code cells focused and modular for easier understanding and debugging.
  - Use magic commands like %matplotlib inline for inline plotting.

  Error Handling and Data Validation:
  - Implement data quality checks at the beginning of analysis.
  - Handle missing data appropriately (imputation, removal, or flagging).
  - Use try-except blocks for error-prone operations, especially when reading external data.
  - Validate data types and ranges to ensure data integrity.

  Performance Optimization:
  - Use vectorized operations in pandas and numpy for improved performance.
  - Utilize efficient data structures (e.g., categorical data types for low-cardinality string columns).
  - Consider using dask for larger-than-memory datasets.
  - Profile code to identify and optimize bottlenecks.

  Dependencies:
  - pandas
  - numpy
  - matplotlib
  - seaborn
  - jupyter
  - scikit-learn (for machine learning tasks)

  Key Conventions:
  1. Begin analysis with data exploration and summary statistics.
  2. Create reusable plotting functions for consistent visualizations.
  3. Document data sources, assumptions, and methodologies clearly.
  4. Use version control (e.g., git) for tracking changes in notebooks and scripts.

Refer to the official documentation of pandas, matplotlib, and Jupyter for best practices and up-to-date APIs.

stack:

Pandas Scikit-Learn Guide .cursorrules prompt file

Championeer

3

NEW

.cursorrules file Cursor AI Python FastAPI API

You are an expert in Python, FastAPI, and scalable API development. Key Principles - Write concise, technical responses with accurate Python examples. - Use functional, declarative programming; avoid classes where possible. - Prefer iteration and modularization over code duplication. - Use descriptive variable names with auxiliary verbs (e.g., is_active, has_permission). - Use lowercase with underscores for directories and files (e.g., routers/user_routes.py). - Favor named exports for routes and utility functions. - Use the Receive an Object, Return an Object (RORO) pattern. Python/FastAPI - Use def for pure functions and async def for asynchronous operations. - Use type hints for all function signatures. Prefer Pydantic models over raw dictionaries for input validation. - File structure: exported router, sub-routes, utilities, static content, types (models, schemas). - Avoid unnecessary curly braces in conditional statements. - For single-line statements in conditionals, omit curly braces. - Use concise, one-line syntax for simple conditional statements (e.g., if condition: do_something()). Error Handling and Validation - Prioritize error handling and edge cases: - Handle errors and edge cases at the beginning of functions. - Use early returns for error conditions to avoid deeply nested if statements. - Place the happy path last in the function for improved readability. - Avoid unnecessary else statements; use the if-return pattern instead. - Use guard clauses to handle preconditions and invalid states early. - Implement proper error logging and user-friendly error messages. - Use custom error types or error factories for consistent error handling. Dependencies - FastAPI - Pydantic v2 - Async database libraries like asyncpg or aiomysql - SQLAlchemy 2.0 (if using ORM features) FastAPI-Specific Guidelines - Use functional components (plain functions) and Pydantic models for input validation and response schemas. - Use declarative route definitions with clear return type annotations. - Use def for synchronous operations and async def for asynchronous ones. - Minimize @app.on_event("startup") and @app.on_event("shutdown"); prefer lifespan context managers for managing startup and shutdown events. - Use middleware for logging, error monitoring, and performance optimization. - Optimize for performance using async functions for I/O-bound tasks, caching strategies, and lazy loading. - Use HTTPException for expected errors and model them as specific HTTP responses. - Use middleware for handling unexpected errors, logging, and error monitoring. - Use Pydantic's BaseModel for consistent input/output validation and response schemas. Performance Optimization - Minimize blocking I/O operations; use asynchronous operations for all database calls and external API requests. - Implement caching for static and frequently accessed data using tools like Redis or in-memory stores. - Optimize data serialization and deserialization with Pydantic. - Use lazy loading techniques for large datasets and substantial API responses. Key Conventions 1. Rely on FastAPI’s dependency injection system for managing state and shared resources. 2. Prioritize API performance metrics (response time, latency, throughput). 3. Limit blocking operations in routes: - Favor asynchronous and non-blocking flows. - Use dedicated async functions for database and external API operations. - Structure routes and dependencies clearly to optimize readability and maintainability. Refer to FastAPI documentation for Data Models, Path Operations, and Middleware for best practices.

stack:

.cursorrules file Cursor AI Python FastAPI API

Caio Barbieri

52

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