aggregate-prefixes
Fast IPv4 and IPv6 prefix aggregator written in Python.
Gets a list of unsorted IPv4 or IPv6 prefixes from argument or stdin and returns a sorted list of aggregates to stdout. Errors go to stderr.
CLI Syntax for executable
usage: aggregate-prefixes [-h] [--max-length [LENGTH]] [--verbose] [--version]
prefixes
Aggregates IPv4 or IPv6 prefixes from file or STDIN
positional arguments:
prefixes Unsorted list of IPv4 or IPv6 prefixes. Use '-' for
STDIN.
optional arguments:
-h, --help show this help message and exit
--max-length [LENGTH], -m [LENGTH]
Discard longer prefixes prior to processing
--verbose, -v Display verbose information about the optimisations
--version, -V show program's version number and exit
Usage as module
$ python
Python 3.7.3 (default, Mar 26 2019, 21:43:19)
[GCC 8.2.1 20181127] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
>>> from aggregate_prefixes import aggregate_prefixes
>>> list(aggregate_prefixes(['192.0.2.0/32', '192.0.2.1/32', '192.0.2.2/32']))
['192.0.2.0/31', '192.0.2.2/32']
>>>
Python compatibility
Tested with:
- Python 3.7.3
- PyPy3 7.1.1 (Python 3.6.1 compatibility level)