kemlang-py

A Gujarati-flavored programming language — install it like Bhailang.

Install

npm install -g kemlang-py

Requires Node.js 14+ and Python 3.10+. The installer automatically detects Python and installs the KemLang interpreter via pip.

After Installing

You get the kem command globally:

# Verify installation
kem version

# Start the interactive REPL
kem repl

# Run a .jsk file
kem run hello.jsk

# Run with token + AST trace
kem run hello.jsk --trace

# Format a file in-place
kem fmt hello.jsk

# Check formatting without modifying
kem fmt --check .

# Show token stream
kem tokens hello.jsk

# Show abstract syntax tree
kem ast hello.jsk

Quick Start

Create hello.jsk:

kem bhai
    bhai bol "kem cho, duniya!"
aavjo bhai

Run it:

kem run hello.jsk
# Output: kem cho, duniya!

Language Basics

Every KemLang program is wrapped in kem bhai ... aavjo bhai.

kem bhai
    // Variables
    aa naam che "Sanket"
    aa age che 25
    aa pi che 3.14

    // Print
    bhai bol "Hello, " + naam + "!"

    // Conditionals
    jo age >= 18 {
        bhai bol "adult"
    } nahi to {
        bhai bol "minor"
    }

    // Loop
    aa i che 1
    farvu {
        bhai bol i
        i che i + 1
        jo i > 3 { tame jao }
    } jya sudhi bhai chhe

    // Input
    aa input che bapu tame bolo
    bhai bol "You said: " + input
aavjo bhai

Keywords

| Keyword | Meaning | |---------|---------| | kem bhai | Program start | | aavjo bhai | Program end | | aa <name> che <value> | Declare variable | | <name> che <value> | Re-assign variable | | bhai bol <expr> | Print | | bapu tame bolo | Read input | | jo | if | | nahi to | else | | farvu { } jya sudhi <cond> | while loop | | tame jao | break | | aagal vado | continue | | bhai chhe | true | | bhai nathi | false |

How It Works

This npm package is a thin wrapper that:

1. Detects Python 3.10+ on your system
2. Installs kemlang-py via pip
3. Wraps the kem Python CLI so it's accessible from your terminal globally

Troubleshooting

kem: command not found

# Verify Python is installed
python3 --version   # needs 3.10+

# Reinstall
npm uninstall -g kemlang-py && npm install -g kemlang-py

Python not found

# macOS
brew install [email protected]

# Ubuntu/Debian
sudo apt update && sudo apt install python3.11 python3-pip

# Windows — download from https://www.python.org/downloads/

Permission errors on macOS/Linux

sudo npm install -g kemlang-py

Also Available on PyPI

If you prefer installing directly with pip:

pip install kemlang-py

Links

• GitHub: github.com/sanketmuchhala/kemlang-py
• PyPI: pypi.org/project/kemlang-py
• Website & Playground: gujju-py.vercel.app
• Issues: github.com/sanketmuchhala/kemlang-py/issues

MIT License