init

README.md

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+--- 
+license: mit
+task_categories:
+  - text-to-image
+language:
+  - en
+
+
+# 明确告诉 HF Hub 每列的数据类型
+dataset_info:
+  features:
+    image:
+      dtype: image
+    prompt:
+      dtype: string
+    idx:
+      dtype: int64
+
+configs:
+  - config_name: body
+    data_files:
+      - split: train
+        path:
+          - "body/train.parquet"
+
+  - config_name: nature
+    data_files:
+      - split: train
+        path:
+          - "nature/train.parquet"
+---
+

a.py

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+from datasets import Features, Image, Value, Dataset, load_dataset
+ds  = load_dataset("D:\\code\\test", "nature", split="train")
+ds = ds.cast(Features({
+  "image": Image(decode=False),
+  "prompt": Value("string"),
+  "idx":    Value("int64")
+}))
+ds.to_parquet("nature/train.parquet")

body/train.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:2322b19e6eac0fbd01ea8474702341d67bde9a77ae7a2e75ca80a4e85cf7e112
+size 223957

nature/train.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:51569d19d29dffe591436ef1f1f28a93a51fbb2a67c0ada7d5a94ce9a9f6aeee
+size 115460