langflow-base

library0.10.0pypypiunverified

A Python package with a built-in web application for building AI-powered workflows. Current version 0.9.1, released March 2025. Active development with monthly releases.

llm-agents web-framework workflow ai-ml

pip install langflow-base

github ↗package ↗homepage ↗docs ↗

INSTALL

IMPORT

SIG · LANGFLOW-BASE

langflow-base

llm-agentspythonv0.10.0

Install

89.7s avg

Import

—

Disk

1229MB

Pass rate

1/ 10

Env Coverage1 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.10.0 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

glibc

py 3.10

✕ build_error

✓ 89.7s

py 3.11

✕ build_error

✕ timeout

py 3.12

✕ build_error

✕ timeout

py 3.13

✕ build_error

✕ timeout

py 3.9

✕ build_error

1229MB installed

● package 1229MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

langflow_base

✓ import langflow_base

✗ from langflow_base import *

Wildcard imports not recommended; use specific submodules.

load_flow

✓ from langflow_base import load_flow

✗ from langflow import load_flow

Incorrect package name; use langflow_base.

Loads a Langflow flow from a JSON file. For authentication, set LANGFLOW_API_KEY environment variable.

import os from langflow_base import load_flow # Load a flow from a JSON file flow = load_flow('path/to/flow.json') # optional: set API key via env var api_key = os.environ.get('LANGFLOW_API_KEY', '') print(f"Flow loaded: {flow}")

langflow --version

Debug

Known issues

breakinglangflow-base 0.9.x renamed several submodules (e.g., 'langflow_base.components' to 'langflow_base.components_v2'). Update imports accordingly.

fix

Use new submodule paths as documented in the official changelog.

affects: >=0.9.0

deprecatedThe function 'run_flow' is deprecated in 0.8.x and removed in 0.9.x. Use 'execute_flow' instead.

fix

Replace 'run_flow(...)' with 'execute_flow(...)'.

affects: >=0.9.0

gotchaThe package requires Python >=3.10 and <3.14. Older Python versions will fail to install.

fix

Ensure Python version is 3.10, 3.11, 3.12, or 3.13.

affects: all

gotchaWeb application dependencies (e.g., 'uvicorn', 'fastapi') are not automatically installed. Use 'langflow-base[web]' to include them.

fix

Run 'pip install langflow-base[web]' if you need the built-in web app.

affects: all

Upgrade

Version history

0.10.0latest on PyPI · released Jun 9, 2026

Audit

Dependencies

No dependency data recorded yet.

Agent activity

27 hits · last 30 days

node

Amazon

OpenAI (training)

Resources

githubhttps://github.com/langflow-ai/langflow ↗

packagehttps://pypi.org/project/langflow-base/ ↗

homepagehttps://www.langflow.org ↗

docshttps://docs.langflow.org ↗