# Python Project Setup Guide
```bash
#!/usr/bin/env python3
```
## Setting Up a Virtual Environment

1. **Create Project Directory**
   ```bash
   mkdir my_project && cd my_project
   ```

2. **Create Virtual Environment**
   ```bash
   python3 -m venv venv
   ```

3. **Activate Virtual Environment**
   - macOS/Linux:
     ```bash
     source venv/bin/activate
     ```
   - Windows:
     ```cmd
     .\venv\Scripts\activate
     ```

4. **Deactivate Virtual Environment**
   ```bash
   deactivate
   ```

## Package Management with pip

1. **Install a Package**
   ```bash
   pip install package_name
   ```

2. **Install Specific Version**
   ```bash
   pip install package_name==version
   ```

3. **Upgrade a Package**
   ```bash
   pip install --upgrade package_name
   ```

4. **Using a Requirements File**
   - Install packages:
     ```bash
     pip install -r requirements.txt
     ```
   - Freeze current packages to `requirements.txt`:
     ```bash
     pip freeze > requirements.txt
     ```

## Managing Dependencies

- Create a `requirements.txt` file in your project root.
- List dependencies and versions, e.g., `flask==1.1.2`.
- Use `pip freeze` to generate this file with current environment packages.

## Best Practices

- Always activate your virtual environment when working on the project.
- Regularly update your `requirements.txt` to reflect new dependencies.
- Include `venv` in your `.gitignore` file.
- Commit `requirements.txt` to version control.

This guide provides a streamlined approach to setting up and managing Python projects, ensuring consistency and ease of use across development environments.