rohitg00/ai-engineering-from-scratch · error · SystemExit

zstandard is required for this lesson. Install with: pip ins

Error message

zstandard is required for this lesson. Install with: pip install zstandard

What it means

Error "zstandard is required for this lesson. Install with: pip install zstandard" thrown in rohitg00/ai-engineering-from-scratch.

Source

Thrown at phases/19-capstone-projects/42-large-corpus-downloader/code/main.py:33

import dataclasses
import hashlib
import io
import json
import os
import struct
import sys
import tempfile
import time
import urllib.parse
import urllib.request
from dataclasses import asdict, dataclass, field
from pathlib import Path
from typing import Callable, Iterable, Iterator

try:
    import zstandard as zstd
except ImportError as exc:
    raise SystemExit(
        "zstandard is required for this lesson. Install with: pip install zstandard"
    ) from exc


CHUNK_BYTES = 1 << 16
DEFAULT_NUM_HASHES = 128
DEFAULT_BANDS = 32
DEFAULT_SHINGLE_WIDTH = 5
MAX_UINT64 = (1 << 64) - 1
MERSENNE_PRIME = (1 << 61) - 1


@dataclass
class ShardPlan:
    """One row of the planned shard list."""

    shard_id: str
    url: str

View on GitHub (pinned to 39ea8a1c6d)

When it happens

Trigger: Thrown at phases/19-capstone-projects/42-large-corpus-downloader/code/main.py:33 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of rohitg00/ai-engineering-from-scratch@39ea8a1c6d (2026-08-26). Data as JSON: /api/errors/4d6d6880ecf684ce. Report an issue: GitHub.