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Editorial Team
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Asked: 2026-05-31T05:54:24+00:00

I have a string : mystring = Foo: Bar (Titi) Foo-age: 50 Airplanes: 12:1

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I have a string : 

mystring = "Foo: Bar (Titi) Foo-age: 50 Airplanes: 12:1 12:3 12:4 12:5 [...] Next Hop: LAX Origine ID: 49 Hop List 2 4 9 0 3 [...]"

Is there a way to split this string using a pattern, like:

pattern = {"Foo", "Foo-age", "Airplanes", "Next Hop", "Origine ID", "Hop List"}

and then

mylist = somefunction(mystring , pattern)
print mylist 
--> {"Foo":"Bar (Titi)","Foo-age" : 50, "Airplanes": ["12:1","12:3",...], ...}

Is that possible in python?

[EDIT]

Some sample data – a 5-col csv file w/ delimiter “,”

col-1,col-2,Path: 9876 (IGP) Local-Pref: 310000   MED: 0 Communities: 1234:6 1234:95 1234:101 1234:202 1234:500 1234:903 1234:3369 1234:8000 1234:8002 1234:16925 9876:19827 Next Hop: x.x.127.151   Originator ID: x.x.155.144 Cluster List: 0.0.29.99 0.0.29.97 0.0.26.245 0.0.2.179 ,col-4,col-5

col-1,col-2,Path: 9876 (IGP) Local-Pref: 310000   MED: 0 Communities: 1234:3 1234:95 1234:101 1234:202 1234:13705 9876:19941 Next Hop: x.x.127.61   Originator ID: x.x.137.37 Cluster List: 0.0.29.99 0.0.29.97 0.0.1.195 ,col-4,col-5

col-1,col-2,Path: 9876 (IGP) Local-Pref: 310000   MED: 0 Communities: 1234:2 1234:95 1234:101 Next Hop: x.x.127.149   Originator ID: x.x.137.29 Cluster List: 0.0.29.99 0.0.29.98 0.0.2.240 ,col-4,col-5

col-1,col-2,Path: 9876 (IGP) Local-Pref: 310000   MED: 0 Communities: 1234:6 1234:95 1234:101 1234:202 1234:500 1234:903 1234:3369 1234:8000 1234:8002 1234:16924 9876:19827 Next Hop: x.x.127.151   Originator ID: x.x.155.144 Cluster List: 0.0.29.99 0.0.29.97 0.0.26.245 0.0.2.179 ,col-4,col-5
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1 Answer

  1. Editorial Team

    I think this can be done in two steps. First, you look for something that looks like a field name (Foo-Bar:) and insert a “special” marker character (e.g. @) before each match. Second, you look for the pattern marker field-name : data and populate the data dictionary:

    text = """
col-1,col-2,Path: 9876 (IGP) Local-Pref: 310000   MED: 0 Communities: 1234:6 1234:95 1234:101 1234:202 1234:500 1234:903 1234:3369 1234:8000 1234:8002 1234:16925 9876:19827 Next Hop: x.x.127.151   Originator ID: x.x.155.144 Cluster List: 0.0.29.99 0.0.29.97 0.0.26.245 0.0.2.179 ,col-4,col-5
"""

import re

text = re.sub(r'([A-Z][A-Za-z -]+:)', r'@\1', text)
data = {}
for m in re.finditer(r'@(.+?):([^,@]+)', text):
    data[m.group(1)] = m.group(2).strip()

import pprint
pprint.pprint(data)

    Result:

     {'Cluster List': '0.0.29.99 0.0.29.97 0.0.26.245 0.0.2.179',
  'Communities': '1234:6 1234:95 1234:101 1234:202 1234:500 1234:903 1234:3369 1234:8000 1234:8002 1234:16925 9876:19827',
  'Local-Pref': '310000',
  'MED': '0',
  'Next Hop': 'x.x.127.151',
  'Originator ID': 'x.x.155.144',
  'Path': '9876 (IGP)'}
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