Change language

Python | Remove all digits from a list of strings

| |

Examples :

  Input:  [’alice1’,’ bob2’, ’cara3’]  Output:  [’alice’,’ bob’, ’cara’]  Input:  [’ 4geeks’, ’3for’,’ 4geeks’]  Output:  [’geeks’,’ for’, ’geeks’] 

Method # 1: Python Regex

The Python regex pattern can also be used to find if each line is digit or not, and converting them to "".

# Python program to remove all
# numbers from the string list

import re

 

def remove ( list ):

pattern = ’[0-9]’

list = [re.sub (pattern, ’’, i) for i in list ]

return list

 
# Driver code

 

list = [ ’4geeks’ , ’3for’ , ’ 4geeks’ ]

 print (remove ( list ))

Exit:

 [’geeks’,’ for’, ’ geeks’] 

Method # 2: Using str.maketrans()
Method maketrans () returns a translation table that maps each character in the intabst string to the character at the same position in the outtab string. In this particular task, we translate each digit into "" using a for loop.

# Python program to remove all
# numbers from the list of strings

from string import digits

 

def remove ( list ) :

remove_digits = str . maketrans (’ ’, ’ ’, digits)

list = [i.translate (remove_digits) for i in list ]

return list

  
# Driver code

  

list = [ ’4geeks’ , ’ 3for’ , ’4geeks’ ]

print (remove ( list ))

Exit:

 [’geeks ’,’ for’, ’geeks’] 

Method # 3: Using str.isalpha()
In this approach, we use two for loops and check if the string character is an alphabet or not. If yes, join it to the list, otherwise leave it.

# Python program to remove all
# numbers from the list of strings

from string import digits

 

def remove ( list ):

list = [’’ .join (x for x in i if x.isalpha ()) for i in list ]

 

return list

 
# Driver code

 

list = [ ’4geeks’ , ’ 3for’ , ’4geeks’ ]

print (remove ( list ))

Exit :

 [’geeks’,’ for’, ’geeks’] 

Shop

Learn programming in R: courses

$

Best Python online courses for 2022

$

Best laptop for Fortnite

$

Best laptop for Excel

$

Best laptop for Solidworks

$

Best laptop for Roblox

$

Best computer for crypto mining

$

Best laptop for Sims 4

$

Latest questions

NUMPYNUMPY

Common xlabel/ylabel for matplotlib subplots

12 answers

NUMPYNUMPY

How to specify multiple return types using type-hints

12 answers

NUMPYNUMPY

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

12 answers

NUMPYNUMPY

Flake8: Ignore specific warning for entire file

12 answers

NUMPYNUMPY

glob exclude pattern

12 answers

NUMPYNUMPY

How to avoid HTTP error 429 (Too Many Requests) python

12 answers

NUMPYNUMPY

Python CSV error: line contains NULL byte

12 answers

NUMPYNUMPY

csv.Error: iterator should return strings, not bytes

12 answers

News


Wiki

Python | How to copy data from one Excel sheet to another

Common xlabel/ylabel for matplotlib subplots

Check if one list is a subset of another in Python

sin

How to specify multiple return types using type-hints

exp

Printing words vertically in Python

exp

Python Extract words from a given string

Cyclic redundancy check in Python

Finding mean, median, mode in Python without libraries

cos

Python add suffix / add prefix to strings in a list

Why do I get "Pickle - EOFError: Ran out of input" reading an empty file?

Python - Move item to the end of the list

Python - Print list vertically