How to quickly find all group objects that may be associated with a specific IP address about ipaddress HOT 1 CLOSED

Allowing the range format can be problematic, since you can come up with some pathological cases like
0-255.0-255.0-255.1-255, which is 16 million disjoint address ranges. However, the example you gave, 1.2.0-255.0-255, is just a single range, and it is also equivalent to a single prefix block 1.2.0.0/16.

In general, for the range formats, since they are not always prefix blocks, you would need to use the SequentialBlockIterator to split up the disjoint ranges, and then use SpanWithPrefixBlocks to get the equivalent prefix blocks. The Partition class may already have code to do this. This would work fine with any address, but for prefix blocks and single addresses the result would just be the same block or address. For the range formats you would end up with many.

Seems fine overall. There is a wiki entry for doing lookups with tries.

There is no specific question or issue to address here, so closing.

from ipaddress.