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101 lines
2.5 KiB
Python
101 lines
2.5 KiB
Python
import openai
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from openai.types import completion, completion_choice
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from .model import RequestBase
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class CompletionRequest(RequestBase):
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"""调用Completion接口的请求类。
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调用方可以一直next completion直到finish_reason为stop。
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"""
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model: str
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prompt: str
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kwargs: dict
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stopped: bool = False
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def __init__(
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self,
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client: openai.Client,
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model: str,
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messages: list[dict[str, str]],
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**kwargs
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):
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self.client = client
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self.model = model
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self.prompt = ""
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for message in messages:
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self.prompt += message["role"] + ": " + message["content"] + "\n"
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self.prompt += "assistant: "
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self.kwargs = kwargs
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self.req_func = self.client.completions.create
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def __iter__(self):
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return self
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def __next__(self) -> dict:
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"""调用Completion接口，返回生成的文本
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{
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"id": "id",
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"choices": [
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{
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"index": 0,
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"message": {
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"role": "assistant",
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"type": "text",
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"content": "message"
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},
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"finish_reason": "reason"
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}
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],
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"usage": {
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"prompt_tokens": 10,
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"completion_tokens": 20,
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"total_tokens": 30
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}
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}
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"""
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if self.stopped:
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raise StopIteration()
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resp: completion.Completion = self._req(
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model=self.model,
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prompt=self.prompt,
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**self.kwargs
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)
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if resp.choices[0].finish_reason == "stop":
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self.stopped = True
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choice0: completion_choice.CompletionChoice = resp.choices[0]
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self.prompt += choice0.text
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return {
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"id": resp.id,
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"choices": [
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{
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"index": choice0.index,
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"message": {
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"role": "assistant",
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"type": "text",
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"content": choice0.text
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},
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"finish_reason": choice0.finish_reason
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}
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],
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"usage": {
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"prompt_tokens": resp.usage.prompt_tokens,
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"completion_tokens": resp.usage.completion_tokens,
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"total_tokens": resp.usage.total_tokens
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}
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}
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