Code Explainers
Code explainers tagged #dataclasses
python
from urllib.parse import urlparse, parse_qs from dataclasses import dataclass, field ALLOWED_SCHEMES = {"http", "https"}
Validating URLs into a safe endpoint in Python
input validation
url parsing
dataclasses
Intermediate
7 steps
python
import json from dataclasses import dataclass, field, asdict from datetime import datetime from typing import Any
JSON round-tripping with Python dataclasses
dataclasses
serialization
json
Intermediate
6 steps
python
import csv from collections import defaultdict from dataclasses import dataclass, field from decimal import Decimal, InvalidOperation
Aggregating CSV sales by category in Python
dataclasses
csv-parsing
defaultdict
Intermediate
8 steps
python
from dataclasses import dataclass, fields, MISSING from typing import get_type_hints, get_origin, get_args, Union
Type-checking dataclasses at runtime
dataclasses
type-hints
runtime-validation
Advanced
8 steps
python
import re from datetime import datetime from dataclasses import dataclass
Parsing access logs with named regex groups
regex
named-groups
dataclasses
Intermediate
6 steps