odysseus0

#!/usr/bin/env python3

import asyncio
import httpx
import threading
import concurrent.futures

def sync_test():
    """Test with synchronous httpx client."""
    print("🔄 Testing synchronous httpx.Client...")

odysseus0

#!/usr/bin/env python3
"""
IPv6 Pattern Test - The script that revealed the hotel WiFi issue

This is the actual script Claude Code wrote that tested multiple services
and revealed the pattern: all real IPv6 addresses failed at TLS,
while IPv6-mapped IPv4 addresses worked fine.

When run at home, everything worked - revealing it was the hotel WiFi
breaking IPv6 in a very specific way.

odysseus0

#!/usr/bin/env python3
"""
Happy Eyeballs Test - Verify if Happy Eyeballs in httpx 0.28+ resolves IPv6 issues.

This tests whether we still need the manual IPv4 forcing.
Spoiler: Happy Eyeballs exists but can't help when TCP succeeds but TLS fails.
"""

import asyncio
import httpx

odysseus0

#!/usr/bin/env python3
# /// script
# dependencies = [
#   "httpx",
#   "aiohttp",
#   "requests",
# ]
# requires-python = ">=3.8"
# ///

odysseus0

The Empty HTTPX Error String That Cost Me 3 Hours (Spoiler: It Was DNS)

Or: How I Learned to Stop Worrying and Blame DNS

TL;DR: httpx AsyncClient was failing with empty error messages while every other HTTP client worked. After 3 hours debugging through Python's entire network stack, I discovered it was trying IPv6 (TikAPI's DNS returns IPv6 but refuses IPv6 connections). The fix? One line: httpx.AsyncHTTPTransport(local_address="0.0.0.0"). Yes, it was DNS.

It started with the most frustrating error message I've ever seen:

{"detail":"An error occurred while requesting TikAPI: "}

odysseus0

#!/usr/bin/env python3
# /// script
# requires-python = ">=3.7"
# ///

"""
DNS Environment Scanner - Diagnose "Works on My Machine" Issues
https://gist.github.com/odysseus0/bd9c3e0cf7f0b2e1222b609577fc4eb1

This tool revealed why httpx AsyncClient worked on my colleague's machine

odysseus0

#!/usr/bin/env python3
# /// script
# dependencies = [
#   "httpx",  # For the demo mode
# ]
# requires-python = ">=3.7"
# ///

"""
Socket Spy - Monitor all socket operations in Python

odysseus0

#!/usr/bin/env python3
# /// script
# dependencies = [
#   "httpx",
#   "aiohttp",
#   "requests",
# ]
# requires-python = ">=3.7"
# ///

odysseus0

Investigation Memo: TikAPI httpx AsyncClient Issue

Date: June 19, 2025
Platform: MacOS
Project: TikAPI_MCP
Environment: /Users/tengjizhang/projects/flashbots_x/TikAPI_MCP

Problem Statement

The TikAPI MCP server was experiencing failures when making requests to the TikAPI service, with empty error messages: "An error occurred while requesting TikAPI: ". This prevented the /resources/read and search functionality from working properly.

odysseus0

package main

import "fmt"

func main() {
	hello()
}

func hello() {
	fmt.Println("Hello, World!")