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gpt.py
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"""Creates the Example and GPT classes for a user to interface with the OpenAI API."""
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import openai
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def set_openai_key(key):
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"""Sets OpenAI key."""
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openai.api_key = key
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class Example():
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"""Stores an input, output pair and formats it to prime the model."""
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def __init__(self, inp, out):
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self.input = inp
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self.output = out
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def get_input(self):
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"""Returns the input of the example."""
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return self.input
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def get_output(self):
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"""Returns the intended output of the example."""
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return self.output
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def format(self):
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"""Formats the input, output pair."""
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return f"input: {self.input}\noutput: {self.output}\n"
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class GPT:
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"""The main class for a user to interface with the OpenAI API.
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A user can add examples and set parameters of the API request."""
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def __init__(self, engine='davinci',
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temperature=0.5,
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max_tokens=100):
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self.examples = []
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self.engine = engine
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self.temperature = temperature
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self.max_tokens = max_tokens
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def add_example(self, ex):
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"""Adds an example to the object. Example must be an instance
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of the Example class."""
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assert isinstance(ex, Example), "Please create an Example object."
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self.examples.append(ex.format())
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def get_prime_text(self):
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"""Formats all examples to prime the model."""
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return '\n'.join(self.examples) + '\n'
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def get_engine(self):
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"""Returns the engine specified for the API."""
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return self.engine
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def get_temperature(self):
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"""Returns the temperature specified for the API."""
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return self.temperature
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def get_max_tokens(self):
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"""Returns the max tokens specified for the API."""
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return self.max_tokens
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def craft_query(self, prompt):
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"""Creates the query for the API request."""
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return self.get_prime_text() + "input: " + prompt + "\n"
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def submit_request(self, prompt):
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"""Calls the OpenAI API with the specified parameters."""
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response = openai.Completion.create(engine=self.get_engine(),
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prompt=self.craft_query(prompt),
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max_tokens=self.get_max_tokens(),
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temperature=self.get_temperature(),
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top_p=1,
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n=1,
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stream=False,
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stop="\ninput:")
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return response
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def get_top_reply(self, prompt):
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"""Obtains the best result as returned by the API."""
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response = self.submit_request(prompt)
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return response['choices'][0]['text']
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