Traceroute parser
Project description
trparse
Parses the output of a traceroute execution into an AST (Abstract Syntax Tree) built up from:
a Traceroute root
Hop inner nodes
Probe leaf nodes
Every node is printable and the entire tree is printable from the root.
Supports the following info. Parsed info in bold:
Header:
Destination Hostname
(Destination IP address)
Hop
Hop counter
[AS#]
Probe
Hostname
(IP address)
RTT
!Annotation
Usage
import trparse s = <some_output_from_traceroute> # Parse the traceroute output traceroute = trparse.loads(s) # You can print the result print traceroute # Save it as string tr_str = str(traceroute) # Or travel the tree hop = traceroute.hops[0] probe = hop.probes[0] # And print the IP address print probe.ip
Data structures
Traceroute
dest_name :: <str>
dest_ip :: <str>
hops :: <list<Hop>>
Hop
idx :: <int>
asn :: <int>
probes :: <list<Probe>>
Probe
name :: <str>
ip :: <str>
rtt :: <float>
anno :: <str>
Considerations
trparse is based on the output of the traceroute command in OSX and Linux. It parses the text based on regular expressions, so there are some tokens it expects to find in a specific format. For example:
Destination Hostname and (Destination IP Address) must be in the same line separated only by one or more space characters. They must be found in the header zone (typically the first two lines), before any hop result.
(Destination IP Address) must be surrounded by parenthesis
Hop counter must be the first token in its line. There can be lines starting with another token, but if there is a Hop counter in a line, it has to be the first token in that line. (can be preceded by space characters).
[AS#] must be surrounded by square brackets [] and start with AS.
Hostname Can be a hostname or its IP address without parenthesis
(IP address) must be in IPv4 format surrounded by parenthesis ().
RTT must be in integer (without commas or dots) or float format (with one (and only one) dot) separated from the ms literal by a least one space character.
!Annotation must start with a ! symbol followed by non-space charachters and there can’t be more than one per probe.
Windows’s tracert output do not meet these conditions so it won’t work in a Widows system. Maybe in a future release.
Project details
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.