---
id: ipy
version: "1.01"
license: BSD License
license_treatment: permissive
maintenance: dormant
---

# IPy — Class and tools for handling of IPv4 and IPv6 addresses and networks

License: permissive · Maintenance: dormant · Downloads: 1.6M/mo

## What it is and what it does

IPy is a lightweight Python library for working with IP addresses and networks. It provides an IP class that parses and represents IPv4 and IPv6 addresses in multiple formats—dotted decimal, hexadecimal, CIDR notation, and range notation—and converts between them. It also includes an IPSet class for aggregating, subtracting, and performing set operations on multiple address ranges.

The library is useful for network administration, firewall rule generation, DNS reverse-lookup generation, and any task requiring flexible IP address manipulation. It has no external runtime dependencies and works across operating systems. However, the package is dormant: the last release was 2020-12-01, and there is no active maintenance.

Use it for:

- Parse and normalize IP addresses in different formats (hex, CIDR, range) for consistent handling in network tools
- Generate reverse DNS names for IP ranges to populate DNS zone files or audit reverse zones
- Aggregate overlapping IP ranges into minimal CIDR blocks for firewall rules or routing tables
- Subtract IP ranges to identify available address space or gaps in network allocations
- Iterate over all addresses in a network block for scanning, validation, or inventory tasks

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

IPy provides Python classes for parsing, manipulating, and working with IPv4 and IPv6 addresses and networks in multiple formats, including CIDR notation, hex, and range notation.

Yes, with conditions. IPy is stable, permissively licensed, and has no dependencies, making it suitable for production use in network administration and scripting tasks. However, install it only if you need its specific IP manipulation features and can accept that the package is unmaintained—no updates or bug fixes are expected. Verify compatibility with your Python version before relying on it.

## Install

pip install ipy
uv add ipy
poetry add ipy

## Installing IPy

Before you install: High install friction due to source-only distribution. No runtime dependencies, but the package is dormant with last release on 2020-12-01.

License in practice: BSD License (permissive) means you can use, modify, and distribute IPy freely in commercial and open-source projects with minimal restrictions, provided you include the license notice.

Quickstart:

from IPy import IP
ip = IP('127.0.0.0/30')
for addr in ip:
    print(addr)
ip.reverseNames()

Verify before relying:

- Whether the package works reliably on Python versions beyond 3.7 (documentation states 2.6-3.7 support)
- Current maintenance status and whether the GitHub repository accepts contributions or bug reports

## Package facts

- License: BSD License (permissive)
- Python support: unspecified
- Install friction: high
- Maintenance: dormant
- Downloads: 1.6M/month (top 5,000 on PyPI)
- Known vulnerabilities: none known

## Tags

ipv4 ipv6 address parsing, network cidr notation handling, ip address manipulation python, netmask prefix length conversion, ip range aggregation, reverse dns lookup generation, network set operations, networking, ip-address, cidr

[View on SkillFed](https://skillfed.io/packages/ipy) · [View on PyPI](https://pypi.org/project/ipy/)