Datasets:
metadata
license: other
license_name: open-data-attribution-training-disclosure-license-odatl-1.0
license_link: LICENSE
language:
- en
tags:
- synthetic
- code
size_categories:
- 100M<n<1B
Code-Syntax-Expanded
A massive, high-quality synthetic dataset for training LLMs to identify and correct syntax errors across 33 programming languages. Contains 5+ million unique examples (~1.1 GB) with English explanations – no artificial padding, no duplicate rows.
📊 Dataset Overview
| Property | Value |
|---|---|
| Total rows | 5,000,000+ |
| File size | ~1.1 GB (uncompressed CSV) |
| Languages | 33 |
| Unique templates | 160+ error patterns |
| Format | CSV (4 columns) |
| License | ODA-TL v1.0 |
📁 Dataset Structure
Each row contains:
| Column | Description |
|---|---|
wrong_code |
Code snippet containing a syntax error |
correct_code |
Corrected version of the snippet |
explanation |
Concise English explanation of the error and fix |
language |
Programming language (e.g., Python, JavaScript, Rust) |
🧠 Languages Covered
General Purpose
Python, JavaScript, TypeScript, Java, C#, C++, Rust, Go, Ruby, PHP, Perl, Swift, Kotlin, R, MATLAB, Scala, Lua, Dart
Web Technologies
HTML, CSS
Database
SQL (MySQL/PostgreSQL-style)
Shell & Scripting
Bash, PowerShell
Markup & Configuration
YAML, JSON, XML, Markdown
Backend & Frameworks
Node.js (Express, fs, JWT, bcrypt, Mongoose)
📈 Dataset Statistics
| Language | Examples (approximate) | Key Error Types |
|---|---|---|
| Python | 350,000+ | Missing colons, indentation, == vs =, imports |
| JavaScript | 300,000+ | Missing parentheses, === vs ==, const reassignment |
| Rust | 200,000+ | Borrow checker, moves, mutable references |
| Java | 250,000+ | Semicolons, type mismatches, array bounds |
| SQL | 200,000+ | Missing commas, WHERE typos, quoting |
| HTML/CSS | 250,000+ | Nesting, self-closing tags, attribute quoting |
| Others | 3,200,000+ | Language-specific syntax rules |
🎯 Use Cases
- Fine-tuning LLMs for code correction and syntax repair
- Building code review assistants that detect common mistakes
- Teaching programming with a massive bank of error/fix examples
- Benchmarking model understanding of language-specific syntax
- Creating educational tools for learning programming languages
💡 Example Entries
| wrong_code | correct_code | explanation | language |
|---|---|---|---|
if x > 5\n print('hello') |
if x > 5:\n print('hello') |
Colon missing after if. | Python |
console.log('world' |
console.log('world') |
Close parenthesis. | JavaScript |
let mut x=5; let r1=&mut x; let r2=&mut x; |
let mut x=5; { let r1=&mut x; } let r2=&mut x; |
Only one mutable borrow allowed. | Rust |
SELECT name age FROM users; |
SELECT name, age FROM users; |
Missing comma between columns. | SQL |
<p>Hello <b>world!</p></b> |
<p>Hello <b>world!</b></p> |
Improper nesting of tags. | HTML |