odysseus0

du -sh * | sort -rh

odysseus0

def binarySearch(array, target):
  """
  input: int[] array, int target
  return: int
  """
  l = 0
  r = len(array)
  while l < r:
    m = l + (r - l) // 2
    if array[m] == target:

odysseus0

package main

import "fmt"

func main() {
	hello()
}

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

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

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

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
# 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

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
# dependencies = [
#   "httpx",
#   "aiohttp",
#   "requests",
# ]
# requires-python = ">=3.8"
# ///

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