Skip to main content
Pre-release

This release is a pre-release and may not be stable for production use.

logo

Langfun

PyPI version codecov pytest

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.

Metadata

Release files for langfun 0.0.2.dev20240520

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for langfun 0.0.2.dev20240520
File Size Uploaded
langfun-0.0.2.dev20240520.tar.gz 163.1 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for langfun 0.0.2.dev20240520
File Interpreter ABI Platform
langfun-0.0.2.dev20240520-py3-none-any.whl Python 3 none any Details

Total release size: 408.7 kB

Release files / langfun-0.0.2.dev20240520.tar.gz

Download URL langfun-0.0.2.dev20240520.tar.gz
Size 163.1 kB
Tags Source
SHA-256 checksum
How to use checksums
00de860942491bcdb1345b572aa9d92f9393f2da7b7750444207135c21c1a0f4
BLAKE2b-256 checksum
How to use checksums
3c6c71908f3390d3a4e9652e4f537142c41748fd18c337a0f1401ec437de96ad
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via twine/5.1.0 CPython/3.12.3

Release files / langfun-0.0.2.dev20240520-py3-none-any.whl

Download URL langfun-0.0.2.dev20240520-py3-none-any.whl
Size 245.6 kB
Tags Python 3
SHA-256 checksum
How to use checksums
b1f08e68c7f2139ce1dedd7bb310ddeae21c0c76243c84f14c1da0beb16d0a84
BLAKE2b-256 checksum
How to use checksums
261bacc907e9925f71d19f1889c5bc1c1f1c20c4061f824045c67dee24df80bf
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via twine/5.1.0 CPython/3.12.3

Release history Release notifications | RSS feed

0.1.1

2 release files

0.1.0

2 release files

This release

0.0.1

2 release files

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page