# giampaolo/pyftpdlib

Extremely fast and scalable Python FTP server library

Repository: https://github.com/giampaolo/pyftpdlib
Canonical: https://ross.abutalabs.com/products/pyftpdlib
Language: Python
License: MIT
License Family: permissive
Topics: python, ftp, ftps, ftp-server, asynchronous
Last push: 2026-04-23T14:10:42+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 78, release rhythm 35, longevity 100
- inputs: {"age_days": 4480, "days_push": 132, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1819, forks 280 (observed 2026-08-28T04:05:40.780656+00:00)

## What it is
pyftpdlib is a pure-Python FTP server library providing a high-level, portable interface for writing fast, scalable, asynchronous FTP servers. It implements the complete RFC-959 FTP protocol plus FTPS, IPv6, and Unicode file names.

## Use cases
- embed an FTP server in a Python application
- serve files over FTP or FTPS from Python
- build a custom FTP daemon with custom authentication
- set up a quick local FTP server for file sharing
- test FTP clients against a programmable server
- add secure FTPS file transfer to a backend service

## When to choose
- you need an embeddable, scriptable FTP server in pure Python
- you need RFC-compliant FTP with FTPS/TLS support
- you want a lightweight async server without external dependencies
- you need custom user authentication or virtual filesystem behavior

## When to avoid
- you need SFTP/SSH file transfer instead of FTP
- you want a full-featured standalone FTP daemon with web admin UI
- your project is not Python-based

## Facets
- artifact type: library
- maturity: stable
- function: http-server, networking, security, concurrency
- domain: backend, networking, developer-tools, files
- platform: python, cross-platform, windows
- tags: ftp, ftps, ftp-server, async, sendfile, rfc959, linux, macos

## Member repositories
- giampaolo/pyftpdlib (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:40.780656+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:20:01.795078+00:00, confidence not recorded.
  - readme: https://github.com/giampaolo/pyftpdlib (fetched 2026-08-28T04:05:40.780656+00:00, sha 01bfc9986e7a)
  - registry_pypi: https://pypi.org/pypi/pyftpdlib/json (fetched 2026-08-29T10:59:17.199414+00:00, sha e3e892d76df2)
- Data as of 2026-08-30T08:39:29.467469+00:00.