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

could not load lesson 58 main.py at {src}

Error message

could not load lesson 58 main.py at {src}

What it means

Error "could not load lesson 58 main.py at {src}" thrown in rohitg00/ai-engineering-from-scratch.

Source

Thrown at phases/19-capstone-projects/59-vit-transformer/code/main.py:35

import numpy as np
import torch
import torch.nn as nn
import torch.nn.functional as F

THIS_DIR = Path(__file__).resolve().parent
LESSON_58 = THIS_DIR.parent.parent / "58-vision-encoder-patches" / "code"


def _load_front_end_module():
    import importlib.util

    name = "vision_front_end_lesson58"
    if name in sys.modules:
        return sys.modules[name]
    src = LESSON_58 / "main.py"
    spec = importlib.util.spec_from_file_location(name, src)
    if spec is None or spec.loader is None:
        raise ImportError(f"could not load lesson 58 main.py at {src}")
    mod = importlib.util.module_from_spec(spec)
    sys.modules[name] = mod
    spec.loader.exec_module(mod)
    return mod


_front_module = _load_front_end_module()
FrontEndConfig = _front_module.FrontEndConfig
VisionFrontEnd = _front_module.VisionFrontEnd
synthesize_image = _front_module.synthesize_image


@dataclass(frozen=True)
class ViTConfig:
    image_size: int = 224
    patch_size: int = 16
    in_channels: int = 3
    hidden: int = 768

View on GitHub (pinned to 39ea8a1c6d)

When it happens

Trigger: Thrown at phases/19-capstone-projects/59-vit-transformer/code/main.py:35 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/a6c534dc730ea3ec. Report an issue: GitHub.