Delete wds-dataset-viewer-test.py

#3
by lhoestq HF staff - opened
Files changed (1) hide show
  1. wds-dataset-viewer-test.py +0 -58
wds-dataset-viewer-test.py DELETED
@@ -1,58 +0,0 @@
1
- import datasets
2
- import tarfile
3
- from datasets import Features, Value
4
- from datasets.download.download_manager import DownloadManager
5
- from typing import List, NamedTuple, TypedDict, Generator
6
- from PIL import Image
7
-
8
- Example = TypedDict('Example', {
9
- 'index': int,
10
- 'tar': str,
11
- 'tar_path': str,
12
- 'img': Image.Image,
13
- })
14
-
15
- class KeyedExample(NamedTuple):
16
- key: int
17
- example: Example
18
-
19
- tar_count = 2
20
- files = [f'./{ix:05d}.tar' for ix in range(tar_count)]
21
-
22
- class MyWebdataset(datasets.GeneratorBasedBuilder):
23
- VERSION = '1.0.0'
24
-
25
- def _info(self) -> datasets.DatasetInfo:
26
- print(__file__)
27
- return datasets.DatasetInfo(
28
- description="My webdataset",
29
- features=Features({
30
- 'index': Value('uint32'),
31
- 'tar': Value('string'),
32
- 'tar_path': Value('string'),
33
- 'img': datasets.Image(),
34
- }),
35
- )
36
-
37
- def _split_generators(self, dl_manager: DownloadManager) -> List[datasets.SplitGenerator]:
38
- return [
39
- datasets.SplitGenerator(
40
- name=datasets.Split.TRAIN,
41
- gen_kwargs={"filepaths": dl_manager.download(files)},
42
- )
43
- ]
44
-
45
- def _generate_examples(self, filepaths: List[str]) -> Generator[KeyedExample, None, None]:
46
- index = 0
47
- for filepath in filepaths:
48
- with tarfile.open(filepath, "r:") as tar:
49
- for member in tar.getmembers():
50
- with tar.extractfile(member.name) as f:
51
- pil: Image.Image = Image.open(f)
52
- yield KeyedExample(index, Example(
53
- index=index,
54
- tar=filepath,
55
- tar_path=member.path,
56
- img=pil,
57
- ))
58
- index += 1