---
dataset_info:
- config_name: C
  features:
  - name: blob_id
    dtype: string
  - name: directory_id
    dtype: string
  - name: path
    dtype: string
  - name: content_id
    dtype: string
  - name: detected_licenses
    sequence: string
  - name: license_type
    dtype: string
  - name: repo_name
    dtype: string
  - name: snapshot_id
    dtype: string
  - name: revision_id
    dtype: string
  - name: branch_name
    dtype: string
  - name: visit_date
    dtype: timestamp[ns]
  - name: revision_date
    dtype: timestamp[ns]
  - name: committer_date
    dtype: timestamp[ns]
  - name: github_id
    dtype: int64
  - name: star_events_count
    dtype: int64
  - name: fork_events_count
    dtype: int64
  - name: gha_license_id
    dtype: string
  - name: gha_event_created_at
    dtype: timestamp[ns]
  - name: gha_created_at
    dtype: timestamp[ns]
  - name: gha_language
    dtype: string
  - name: src_encoding
    dtype: string
  - name: language
    dtype: string
  - name: is_vendor
    dtype: bool
  - name: is_generated
    dtype: bool
  - name: length_bytes
    dtype: int64
  - name: extension
    dtype: string
  - name: filename
    dtype: string
  - name: content
    dtype: string
  splits:
  - name: train
    num_bytes: 64658205790
    num_examples: 6022485
  download_size: 20685881003
  dataset_size: 64658205790
- config_name: C++
  features:
  - name: blob_id
    dtype: string
  - name: directory_id
    dtype: string
  - name: path
    dtype: string
  - name: content_id
    dtype: string
  - name: detected_licenses
    sequence: string
  - name: license_type
    dtype: string
  - name: repo_name
    dtype: string
  - name: snapshot_id
    dtype: string
  - name: revision_id
    dtype: string
  - name: branch_name
    dtype: string
  - name: visit_date
    dtype: timestamp[ns]
  - name: revision_date
    dtype: timestamp[ns]
  - name: committer_date
    dtype: timestamp[ns]
  - name: github_id
    dtype: int64
  - name: star_events_count
    dtype: int64
  - name: fork_events_count
    dtype: int64
  - name: gha_license_id
    dtype: string
  - name: gha_event_created_at
    dtype: timestamp[ns]
  - name: gha_created_at
    dtype: timestamp[ns]
  - name: gha_language
    dtype: string
  - name: src_encoding
    dtype: string
  - name: language
    dtype: string
  - name: is_vendor
    dtype: bool
  - name: is_generated
    dtype: bool
  - name: length_bytes
    dtype: int64
  - name: extension
    dtype: string
  - name: filename
    dtype: string
  - name: content
    dtype: string
  splits:
  - name: train
    num_bytes: 105532622911
    num_examples: 12003027
  download_size: 41089347301
  dataset_size: 105532622911
- config_name: Java
  features:
  - name: blob_id
    dtype: string
  - name: directory_id
    dtype: string
  - name: path
    dtype: string
  - name: content_id
    dtype: string
  - name: detected_licenses
    sequence: string
  - name: license_type
    dtype: string
  - name: repo_name
    dtype: string
  - name: snapshot_id
    dtype: string
  - name: revision_id
    dtype: string
  - name: branch_name
    dtype: string
  - name: visit_date
    dtype: timestamp[ns]
  - name: revision_date
    dtype: timestamp[ns]
  - name: committer_date
    dtype: timestamp[ns]
  - name: github_id
    dtype: int64
  - name: star_events_count
    dtype: int64
  - name: fork_events_count
    dtype: int64
  - name: gha_license_id
    dtype: string
  - name: gha_event_created_at
    dtype: timestamp[ns]
  - name: gha_created_at
    dtype: timestamp[ns]
  - name: gha_language
    dtype: string
  - name: src_encoding
    dtype: string
  - name: language
    dtype: string
  - name: is_vendor
    dtype: bool
  - name: is_generated
    dtype: bool
  - name: length_bytes
    dtype: int64
  - name: extension
    dtype: string
  - name: filename
    dtype: string
  - name: content
    dtype: string
  splits:
  - name: train
    num_bytes: 96702367410
    num_examples: 23840009
  download_size: 35433610745
  dataset_size: 96702367410
- config_name: JavaScript
  features:
  - name: blob_id
    dtype: string
  - name: directory_id
    dtype: string
  - name: path
    dtype: string
  - name: content_id
    dtype: string
  - name: detected_licenses
    sequence: string
  - name: license_type
    dtype: string
  - name: repo_name
    dtype: string
  - name: snapshot_id
    dtype: string
  - name: revision_id
    dtype: string
  - name: branch_name
    dtype: string
  - name: visit_date
    dtype: timestamp[ns]
  - name: revision_date
    dtype: timestamp[ns]
  - name: committer_date
    dtype: timestamp[ns]
  - name: github_id
    dtype: int64
  - name: star_events_count
    dtype: int64
  - name: fork_events_count
    dtype: int64
  - name: gha_license_id
    dtype: string
  - name: gha_event_created_at
    dtype: timestamp[ns]
  - name: gha_created_at
    dtype: timestamp[ns]
  - name: gha_language
    dtype: string
  - name: src_encoding
    dtype: string
  - name: language
    dtype: string
  - name: is_vendor
    dtype: bool
  - name: is_generated
    dtype: bool
  - name: length_bytes
    dtype: int64
  - name: extension
    dtype: string
  - name: filename
    dtype: string
  - name: content
    dtype: string
  splits:
  - name: train
    num_bytes: 247875047930
    num_examples: 22850027
  download_size: 102329028722
  dataset_size: 247875047930
- config_name: Python
  features:
  - name: blob_id
    dtype: string
  - name: directory_id
    dtype: string
  - name: path
    dtype: string
  - name: content_id
    dtype: string
  - name: detected_licenses
    sequence: string
  - name: license_type
    dtype: string
  - name: repo_name
    dtype: string
  - name: snapshot_id
    dtype: string
  - name: revision_id
    dtype: string
  - name: branch_name
    dtype: string
  - name: visit_date
    dtype: timestamp[ns]
  - name: revision_date
    dtype: timestamp[ns]
  - name: committer_date
    dtype: timestamp[ns]
  - name: github_id
    dtype: int64
  - name: star_events_count
    dtype: int64
  - name: fork_events_count
    dtype: int64
  - name: gha_license_id
    dtype: string
  - name: gha_event_created_at
    dtype: timestamp[ns]
  - name: gha_created_at
    dtype: timestamp[ns]
  - name: gha_language
    dtype: string
  - name: src_encoding
    dtype: string
  - name: language
    dtype: string
  - name: is_vendor
    dtype: bool
  - name: is_generated
    dtype: bool
  - name: length_bytes
    dtype: int64
  - name: extension
    dtype: string
  - name: filename
    dtype: string
  - name: content
    dtype: string
  splits:
  - name: train
    num_bytes: 83396371824
    num_examples: 18065153
  download_size: 34470948501
  dataset_size: 83396371824
configs:
- config_name: C
  data_files:
  - split: train
    path: C/train-*
- config_name: C++
  data_files:
  - split: train
    path: C++/train-*
- config_name: Java
  data_files:
  - split: train
    path: Java/train-*
- config_name: JavaScript
  data_files:
  - split: train
    path: JavaScript/train-*
- config_name: Python
  data_files:
  - split: train
    path: Python/train-*
license: other
task_categories:
- text-generation
tags:
- Python
- Java
- JavaScript
- C/C++
size_categories:
- 10M<n<100M
---

# The Stack v2 Subset with File Contents (Python, Java, JavaScript, C, C++)
**TempestTeam/dataset-the-stack-v2-dedup-sub**

## Dataset Summary

This dataset is a **language-filtered and self-contained subset** of [bigcode/the-stack-v2-dedup](https://huggingface.co/datasets/bigcode/the-stack-v2-dedup), part
of the BigCode Project.

It contains only files written in the following programming languages:

- **Python** 🐍
- **Java** ☕
- **JavaScript** 📜
- **C** ⚙️
- **C++** ⚙️

Unlike the original dataset, which only includes metadata and Software Heritage IDs, **this subset includes the actual file contents**, enabling out-of-the-box training
and analysis of code models, without requiring SWH downloads or AWS credentials.

---

## Use Cases

This dataset is intended for:

- Pretraining or fine-tuning Code LLMs on high-quality and permissively licensed code
- Language-specific evaluation or benchmarking
- Research on code representation, generation, or completion across the 5 selected languages

---

## How to Use

```python
from datasets import load_dataset

ds = load_dataset(
    "TempestTeam/dataset-the-stack-v2-dedup-sub",
    name="Python",
    split="train",
    streaming=True
)
```

---

## Dataset Structure

Each example in the dataset contains the following fields (inherited from the original Stack v2):

- `content` (string): **The full file content**, decoded in UTF-8
- `language` (string): Programming language of the file (detected by go-enry / linguist)
- `path` (string): File path within the repository
- `repo_name` (string): Repository name on GitHub
- `detected_licenses` (list of strings): SPDX license identifiers
- `license_type` (string): License type: `permissive` or `no_license`
- `is_vendor` (bool): Whether the file is from a dependency
- `is_generated` (bool): Whether the file is detected as generated
- `length_bytes` (int): File size in bytes
- Plus other metadata like:
  - `blob_id`, `directory_id`, `revision_id`, `snapshot_id`, `visit_date`, `committer_date`
  - GitHub metadata: `github_id`, `gha_language`, `gha_license_id`, etc.

---

## Source Dataset

This dataset is derived from:

👉 [bigcode/the-stack-v2-dedup](https://huggingface.co/datasets/bigcode/the-stack-v2-dedup)

The full Stack v2 dataset is built from the Software Heritage archive and GitHub Archive metadata, and spans 600+ programming languages. This subset narrows the focus
to 5 popular languages while **retaining full file content**.

---

## Curation Rationale

The five selected languages are among the most widely used in open-source projects and code LLM research. By focusing on this curated set, we reduce dataset size,
eliminate irrelevant files, and speed up experimentation while preserving linguistic diversity and utility for real-world applications.

---

## License and Legal Considerations

- Only **permissively licensed** files (or those with no license) are included.
- Licensing information is provided at file level.
- The dataset may contain personal information (e.g., emails, keys) present in public repositories. Sensitive data has been reduced via deduplication but may still exist.
- Usage must comply with the original license of each file.

To request the removal of your code, refer to the [BigCode opt-out process](https://github.com/bigcode-project/bigcode-dataset#how-to-remove-your-code-from-the-dataset).

---

## Citation

If you use this dataset, please cite the original Stack v2 paper:

```bibtex
@misc{lozhkov2024starcoder,
  title={StarCoder 2 and The Stack v2: The Next Generation},
  author={Anton Lozhkov and Raymond Li and Loubna Ben Allal and others},
  year={2024},
  eprint={2402.19173},
  archivePrefix={arXiv},
  primaryClass={cs.SE}
}
```