PyLator – C to Python Transcompiler

Overview

PyLator is a source-to-source transcompiler that converts C programs into equivalent Python code using core principles of Compiler Design.

C and Python are two of the most widely used programming languages:

• C → Fast, efficient, hardware-level control
• Python → Simple, readable, rich libraries

Many developers start with C but later switch to Python for domains like Data Science, Machine Learning, and Web Development. Rewriting code manually is time-consuming, so PyLator automates this process.

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Project Objectives

The main goal is to design and implement a transcompiler that:

• Converts C code into Python code
• Preserves the original logic
• Uses compiler design phases

Specific Goals:

1. Understand syntax of C and Python
2. Implement compiler phases:
   • Lexical Analysis
   • Syntax Analysis
   • Semantic Analysis
   • Code Optimization
   • Code Generation
3. Generate correct Python output without logic change

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How It Works

PyLator follows compiler design architecture:

C Code → Lexer → Parser → Intermediate Representation → Code Generator → Python Code

Phases:

1. Lexical Analysis

• Breaks code into tokens (keywords, identifiers, operators)

2. Syntax Analysis

• Builds structure using grammar rules

3. Semantic Analysis

• Checks meaning and logic

4. Code Optimization

• Makes code efficient

5. Code Generation

• Converts structure into Python syntax

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Features

• Converts basic C programs to Python
• Preserves logical flow
• Modular compiler design
• Beginner-friendly
• Open-source

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