> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jhansi.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Dependency Detection

> How jhansi.io automatically installs dependencies at exec time

jhansi.io detects and installs dependencies automatically at exec time —
no manual `pip install` or `npm install` needed.

Dependencies are installed into the sandbox workspace and persist across runs.
First exec is slower. Subsequent execs are fast.

## Python

| File found         | Action                                               |
| ------------------ | ---------------------------------------------------- |
| `pyproject.toml`   | `pip install` from project                           |
| `requirements.txt` | `pip install -r`                                     |
| Neither            | `pipreqs` scans your file and installs what it finds |

## Node

| File found     | Action        |
| -------------- | ------------- |
| `package.json` | `npm install` |
| Neither        | runs as-is    |

## Go

| File found | Action                        |
| ---------- | ----------------------------- |
| `go.mod`   | `go mod download`             |
| Neither    | `go mod init` + `go mod tidy` |

## Java

| File found     | Action                                                |
| -------------- | ----------------------------------------------------- |
| `pom.xml`      | Maven — `mvn dependency:resolve` + `mvn compile`      |
| `build.gradle` | Gradle — `gradle dependencies` + `gradle compileJava` |
| Neither        | `javac` direct compile                                |