This release is a pre-release and may not be stable for production use.
Langfun
Installation | Getting started
What is Langfun
Langfun is a Python library that aims to make language models (LM) fun to work with. Its design enables a programming model that flows naturally, resembling the human thought process. It emphasizes the reuse and combination of language pieces to form prompts, thereby accelerating innovation. In contrast to other LM frameworks, which feed program-generated data into the LM, langfun takes a distinct approach: It starts with natural language, allowing for seamless interactions between language and program logic, and concludes with natural language and optional structured output. Consequently, langfun can aptly be described as Language as functions, capturing the core of its methodology.
Install
pip install langfun
Or install nightly build with:
pip install langfun --pre
Hello World
import langfun as lf
class NumericAnswerExtractor(lf.LangFunc):
"""Numeric answer extractor.
Here is my question:
{{question}}
Here is the response:
{{question()}}
Can you help me extract a number from the response as the answer to my
question? Your response should only contain a number in numeric form.
If the answer is not a number or you cannot extract it, respond with UNKNOWN.
"""
output_transform = lf.transforms.Match('\d+').to_int()
l = NumericAnswerExtractor()
with lf.context(lm=lf.llms.Gpt35(debug=True)):
r = l(question=lf.LangFunc('What is result of {{x}} plus {{y}}?'),
x='one',
y='two')
print('Result:', r.result)
Disclaimer: this is not an officially supported Google product.
1 maintainer
Metadata
1 maintainer
Release files for langfun 0.0.2.dev20240418
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