An overview of popular techniques to confine LLMs' output to a predefined schema, covering API providers, prompting/reprompting strategies, and constrained decoding.
   
    
 
 
  
   
   A list of 10 Python libraries that can improve your workflow and make coding easier.
1.  **boltons:** Collection of useful Python utilities, filling gaps in the standard library.
2.  **tenacity:**  Elegant retrying mechanism for functions that might fail.
3.  **diskcache:**  Persistent caching system backed by a disk (SQLite).
4.  **glom:**  Toolkit for easily accessing nested data structures (like JSON).
5.  **tqdm.contrib.concurrent:** Multi-threaded progress bars using `tqdm`.
6.  **anyio:** Compatibility layer for asynchronous Python code across different libraries.
7.  **deepdiff:**  Detects differences between Python objects (dicts, lists, etc.).
8.  **pyrsistent:**  Immutable data structures for functional programming.
9.  **structlog:**  Library for creating structured, parseable logs.
10. **pyinstrument:**  Python profiler that generates flamegraphs for performance analysis.
   
    
 
 
  
   
   Model Context Protocol server to run Python code in a sandbox using Pyodide in Deno, isolated from the operating system.
   
    
 
 
  
   
   This article explores ten underrated Python libraries that can help automate tasks, debug faster, and improve coding efficiency.
- **Rich**: Terminal beautification
- **PyWhatKit**: Automation tasks
- **Pydantic**: Data validation
- **Black**: Code formatting
- **HTTPie**: API testing
- **Typer**: Building CLI applications
- **IceCream**: Debugging
- **Poetry**: Package management
- **Faker**: Generating fake data
- **Pyppeteer**: Browser automation
   
    
 
 
  
   
   An analysis showing that structured outputs can sometimes perform worse than unstructured ones in certain tasks for different LLM models, emphasizing the importance of testing both approaches.
   
    
 
 
  
   
   # main.py
import json
from pydantic import BaseModel, EmailStr, ValidationError, validator
class Employee(BaseModel):
    name: str
    age: int
    email: EmailStr
    department: str
    employee_id: str
    @validator("employee_id")
     def validate_employee_id(cls, v):
         if not v.isalnum() or len(v) != 6:
             raise ValueError("Employee ID must be exactly 6 alphanumeric characters")
         return v
# Load and parse the JSON data
with open("employees.json", "r") as f:
    data = json.load(f)
# Validate each employee record
for record in data:
    try:
        employee = Employee(**record)
        print(f"Valid employee record: {employee.name}")
    except ValidationError as e:
        print(f"Invalid employee record: {record 'name' » }")
        print(f"Errors: {e.errors()}"