Python Basic Chat

pip install openai requests

from openai import OpenAI

client = OpenAI(api_key="sk-xxx", base_url="https://crazyrouter.com/v1")

messages = [
    {"role": "system", "content": "You are a Python programming assistant."}
]

def chat(user_input):
    messages.append({"role": "user", "content": user_input})

    response = client.chat.completions.create(
        model="gpt-5.4",
        messages=messages
    )

    reply = response.choices[0].message.content
    messages.append({"role": "assistant", "content": reply})
    return reply

# Multi-turn dialogue
print(chat("How do I read a CSV file?"))
print(chat("What if the file is very large?"))
print(chat("Can I use pandas for this?"))

from openai import OpenAI

client = OpenAI(api_key="sk-xxx", base_url="https://crazyrouter.com/v1")

stream = client.chat.completions.create(
    model="gpt-5.4",
    messages=[{"role": "user", "content": "Write a poem about programming"}],
    stream=True
)

for chunk in stream:
    if chunk.choices[0].delta.content:
        print(chunk.choices[0].delta.content, end="", flush=True)
print()

import requests
import json

response = requests.post(
    "https://crazyrouter.com/v1/chat/completions",
    headers={
        "Authorization": "Bearer sk-xxx",
        "Content-Type": "application/json"
    },
    json={
        "model": "gpt-5.4",
        "messages": [{"role": "user", "content": "Hello"}],
        "stream": True
    },
    stream=True
)

for line in response.iter_lines():
    if line:
        line = line.decode("utf-8")
        if line.startswith("data: ") and line != "data: [DONE]":
            data = json.loads(line[6:])
            content = data["choices"][0]["delta"].get("content", "")
            print(content, end="", flush=True)
print()