# Pre-Class TODO's

### 1. Download Postman

{% embed url="<https://www.postman.com/downloads/>" %}

### 2. Install Python 3.9.12

You can check your python installation with

```bash
>>> python3 --version
```

{% hint style="info" %}
You may also have access to Python 3.9.12 via the `python3` command&#x20;
{% endhint %}

If you do not have Python 3.9.12 installed on your machine, download it [here](https://www.python.org/downloads/release/python-3912/). This is the same version that is used in CS 1110 this semester.

### 3. Download Demo Starter Code

{% file src="/files/zpLDOv5JyuvNHlnNqJ2a" %}

### 4. Set up your Virtual Environment

**Windows**

```bash
# to create a venv in your current directory, run
>>> python3 -m venv venv

# to activate your venv, from the folder containing the venv folder run
>>> .\venv\Scripts\Activate.ps1

# to deactivate your venv, run
>>> deactivate
```

**Mac/Linux**

```bash
# to create a venv in your current directory, run
$ python3 -m venv venv

# to activate your venv, from the directory containing the venv folder run
$ source ./venv/bin/activate

# to deactivate your venv, run
$ deactivate
```

For a more detailed rundown (and/or) troubleshooting on virtual environments, click [here](/cheat-sheets/virtual-environment.md).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://backend-course.cornellappdev.com/chapters/routes/pre-class.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.