---
created: '2026-04-08T22:37:28+00:00'
id: a58649bc-3317-4834-976b-114e3e741b93
keywords:
- pip
- proxy
- python
- trusted-host
- pypi
- environment variables
- mitmproxy
- Cogent
- Anaheim
- package installation
links: []
modified: '2026-04-08T22:37:28+00:00'
summary: Configuration for pip package installations in slow network environments
  using local proxy with mitmproxy.
tags:
- python
- pip
- proxy
- troubleshooting
title: Pip Proxy Configuration
---

# Pip Package Installation Proxy Configuration

## Problem
Pip direct installs were very slow in a colo-hosted environment (Cogent in Anaheim).

## Solution

### For pip users
Run pip with proxy settings using the `--proxy` flag:

```bash
pip install --proxy http://10.0.10.10:8080 --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org <package_name>
```

### For UV users
Set environment variables before running commands:

```bash
export ALL_PROXY=http://123.123.123.123:8080
```

Also applicable: `HTTP_PROXY`, `HTTPS_PROXY`

## Notes
- Proxy configuration runs on a Windows machine
- MITMproxy was used as the local proxy server
- Multiple trusted-host flags are needed for various PyPI endpoints

## Related Information
- Location: Cogent data center, Anaheim
- Tool: mitmproxy

---
**Created:** 2025-01-28  
**Archived from:** root-level date file