exclude a pattern using regex in python

Question

I want to extract Name and number from a given string and save it into two lists.

    str = 'Dhoni scored 100 runs and Kohli scored 150 runs.Rohit scored 50 runs and Dhawan scored 250 runs .'

I want to acheive :

    name = ['Dhoni','Kohli','Rohit','Dhawan']
    values = ['100','150','50','250']

I tried to use negative-look ahead but did not succeed. I am trying to use the approach as match a word then a number then again a word. May be I am wrong in this approach. How this can be acheived?

What I tried :

   pattern = r'^[A-Za-z]+\s(?!)[a-z]'
   print(re.findall(pattern,str))

The fourth bird · Accepted Answer · 2020-12-14 16:33:30Z

3

You might use 2 capturing groups instead:

\b([A-Z][a-z]+)\s+scored\s+(\d+)\b

regex demo

import re

pattern = r"\b([A-Z][a-z]+)\s+scored\s+(\d+)\b"
str = "Dhoni scored 100 runs and Kohli scored 150 runs.Rohit scored 50 runs and Dhawan scored 250 runs ."

matches = re.finditer(pattern, str)
name = []
values = []
for matchNum, match in enumerate(matches, start=1):
    name.append(match.group(1))
    values.append(match.group(2))

print(name)
print(values)

Output

['Dhoni', 'Kohli', 'Rohit', 'Dhawan']
['100', '150', '50', '250']

answered Dec 14, 2020 at 16:33

The fourth bird

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4 Comments

Havishaa Sharma Over a year ago

How can I use a generic word pattern instead of "score" like \w+ or [A-Za-z]?

The fourth bird Over a year ago

@HavishaaSharma like this \b([A-Z][a-z]+)\s+\w+\s+(\d+)\b regex101.com/r/aMeMux/1

Havishaa Sharma Over a year ago

Do, we use () for grouping? I mean, How it grouped and created a list?

The fourth bird Over a year ago

Yes the () are used for grouping. Then finditer takes the group 1 and 2 values and adds them to both lists.

abc · Accepted Answer · 2020-12-14 16:34:11Z

0

The pattern seems to be name scored value.

>>> res = re.findall(r'(\w+)\s*scored\s*(\d+)', s)
>>> names, values = zip(*res)
>>> names
('Dhoni', 'Kohli', 'Rohit', 'Dhawan')
>>> values
('100', '150', '50', '250')

answered Dec 14, 2020 at 16:34

abc

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Comments

DRC my way · Accepted Answer · 2021-06-21 12:54:18Z

0

This code basically give extract of **Name** and **Number** from a given string and save it into two lists and then store in dictionary in a form of key value pair.

import re

x = 'Dhoni scored 100 runs and Kohli scored 150 runs.Rohit scored 50 runs and Dhawan scored 250 runs.'

names=re.findall(r'[A-Z][a-z]*',x)
values=re.findall(r'[0-9]+',x)
dicts={}
for i in range(len(names)):
    dicts[names[i]]=values[i]
    print(dicts)

#Input: Dhoni scored 100 runs and Kohli scored 150 runs.Rohit scored 50 runs and Dhawan scored 250 runs.
#Output: {'Dhoni': '100', 'Kohli': '150', 'Rohit': '50', 'Dhawan': '250'}

#Input: A has 5000 rupees and B has 15000 rupees.C has 85000 rupees and D has 50000 rupees .
#Output: {'A': '5000', 'B': '15000', 'C': '85000', 'D': '50000'}

edited Jun 21, 2021 at 12:54

answered Jun 21, 2021 at 12:18

DRC my way

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1 Comment

Andy A. Over a year ago

Welcome at SO! Please give a short description, whar your code is doing.

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