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.dev20240302

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.dev20240302
File Size Uploaded
langfun-0.0.2.dev20240302.tar.gz 132.6 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for langfun 0.0.2.dev20240302
File Interpreter ABI Platform
langfun-0.0.2.dev20240302-py3-none-any.whl Python 3 none any Details

Total release size: 333.4 kB

Release files / langfun-0.0.2.dev20240302.tar.gz

Download URL langfun-0.0.2.dev20240302.tar.gz
Size 132.6 kB
Tags Source
SHA-256 checksum
How to use checksums
0d68d4cba93574309886979b496d83b4a83d611d1b30ab2a315bf1c208b43011
BLAKE2b-256 checksum
How to use checksums
6a60720ed04a42e415b640fe45d918e5ab82c706c454e4d0d1c15542f7f1ff33
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via twine/5.0.0 CPython/3.12.2

Release files / langfun-0.0.2.dev20240302-py3-none-any.whl

Download URL langfun-0.0.2.dev20240302-py3-none-any.whl
Size 200.8 kB
Tags Python 3
SHA-256 checksum
How to use checksums
f164381ea6f513995f2c21878cad3b5be7ad1ce0869b3b91587498f4786e348a
BLAKE2b-256 checksum
How to use checksums
a54f7fb5093a0691a1094f9be9106ac8606b2ab595f3dda4815a97d7f93108ea
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via twine/5.0.0 CPython/3.12.2

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