hist-pred-extractor

hist-pred-extractor is a tiny Python package that extracts and structures historical predictions (foresights, prophecies, or prognostications) from free‑form text.
Given a passage about a historical figure or event, the tool uses a LLM to locate statements that contain a prediction, validates them against a strict regex pattern, and returns a clean, structured list of the extracted predictions together with their context.

The package is useful for historians, researchers, educators, and anyone who wants to systematically analyse historical foresights.

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Features

• One‑function API – just pass a string (and optionally a custom LLM or API key).
• LLM‑agnostic – defaults to ChatLLM7 (via langchain_llm7) but works with any LangChain chat model.
• Regex‑validated output – ensures extracted data follows the pattern defined in prompts.pattern.
• Zero‑configuration – works out of the box with the free tier of LLM7.

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Installation

pip install hist_pred_extractor

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Quick Start

from hist_pred_extractor import hist_pred_extractor

# Simple call – uses the default ChatLLM7 and the LLM7_API_KEY
text = """
In 1846, the astronomer John Herschel wrote: "In the next fifty years, the continents will drift apart,
forming the Atlantic as we know it today." This prediction was later confirmed by plate tectonics.
"""
predictions = hist_pred_extractor(user_input=text)

print(predictions)
# Example output:
# [
#   "In the next fifty years, the continents will drift apart, forming the Atlantic as we know it today."
# ]

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API Reference

hist_pred_extractor(user_input, llm=None, api_key=None) → List[str]

Parameter	Type	Description
user_input	str	The raw text containing historical statements to be analysed.
llm	Optional[BaseChatModel]	A LangChain chat model instance. If omitted, the function creates a ChatLLM7 instance automatically.
api_key	Optional[str]	API key for LLM7. If not supplied, the function reads the LLM7_API_KEY environment variable, falling back to the default free‑tier key.

Returns: List[str] – a list of extracted prediction strings that match the internal regex pattern.

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Using a Custom LLM

You can supply any LangChain‑compatible chat model, e.g. OpenAI, Anthropic, or Google Gemini.

OpenAI

from langchain_openai import ChatOpenAI
from hist_pred_extractor import hist_pred_extractor

llm = ChatOpenAI(model="gpt-4o-mini")
predictions = hist_pred_extractor(user_input="...", llm=llm)

Anthropic

from langchain_anthropic import ChatAnthropic
from hist_pred_extractor import hist_pred_extractor

llm = ChatAnthropic()
predictions = hist_pred_extractor(user_input="...", llm=llm)

Google Gemini

from langchain_google_genai import ChatGoogleGenerativeAI
from hist_pred_extractor import hist_pred_extractor

llm = ChatGoogleGenerativeAI(model="gemini-1.5-flash")
predictions = hist_pred_extractor(user_input="...", llm=llm)

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API Key & Rate Limits

• The default free tier of LLM7 provides enough calls for typical research tasks.
• For higher throughput, set your own key:

export LLM7_API_KEY="your_api_key_here"

or pass it directly:

predictions = hist_pred_extractor(user_input="...", api_key="your_api_key_here")

You can obtain a free API key by registering at https://token.llm7.io/.

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Contributing & Support

• Issue Tracker: https://github.com/chigwell/hist_pred_extractor/issues
• Feel free to open a GitHub issue for bugs, feature requests, or questions.

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License

This project is licensed under the MIT License.

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Author

Eugene Evstafev – hi@euegne.plus
GitHub: chigwell

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Acknowledgements

• ChatLLM7 from the langchain_llm7 package: https://pypi.org/project/langchain-llm7/
• LangChain framework for unified LLM access.