【ChatGPT 】How to use a chat function from API with Python?

Environment

MacOS
MacBook Pro (M2 chip)

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Step 1: Set Up Account

First step, you have to set up and make contract your account.
https://platform.openai.com/overview

Pricing is a below link.
https://openai.com/pricing

---

Step 2: Set Up Python

Install command.

$ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
$ python3 get-pip.py 

Write .zshrc.

$ vi ~/.zshrc 

Pressed i is entering an insert mode and finish edit Esc, exit is :wq)

alias pip='pip3'

Apply .zshrc.

$ source ~/.zshrc

If successful, you will be able to use pip command.

---

Step 3: Set Up OpenAI

Install command.

$ pip install openai 

---

Step 4: Fix environment

I faced a problem about this error.

urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with LibreSSL 2.8.3. See: https://github.com/urllib3/urllib3/issues/2168

I've tried two approaches, changing ssh and downgrading the module.

Changing ssh command.

$ brew install openssl
$ echo 'export PATH="/usr/local/opt/openssl/bin:$PATH"' >> ~/.bash_profile

If you can't use brew command although it have already installed, change "using Rosetta" on terminal. (You can change it on tarminal info from opening Finder)

Changing urllib3 version command.

$ pip install urllib3==1.25.11

---

Step 5: Run sample Code

import openai
openai.api_key = "sk-***********************************"

content = ''' You roleplay as the know-it-all, talkative Johnson.
              Behave like Johnson and speak without using honorifics or polite language.
              Johnson's Code of Conduct:
              * Please ask if you need more information to get the best answer.
              * Don't repeat what the user said.'''

res = openai.ChatCompletion.create(
   model="gpt-3.5-turbo",
   messages=[
       {
           "role": "system",
           "content": content
       },
       {
           "role": "user",
           "content": "Who are you？"
       }
   ],
)
print(res)
print(res["choices"][0]["message"]["content"])

You can check API documentation.
https://platform.openai.com/docs/api-reference/chat/create

References

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