Change language

Python | Extract length of longest string in a list

|

Method # 1: Using max () + generator expression
A combination of the above functions can be used to accomplish this task. In this, we extract all the lengths of the list using a generator expression and return the maximum of them using max ().

# Python3 code to demonstrate how it works
# Extract the length of the longest line in a list
# using max () + generator expression

 
# initialize the list

test_list = [ ’ gfg’ , ’is’ , ’ best ’ ]

  
# print original list

prin t ( "The original list:" + str (test_list))

 
# Extract the length of the longest line in a list
# using max () + generator expression

res = max ( len (ele) for ele in test_list)

 
# print result

print ( " Length of maximum string is: " + < code class = "functions"> str (res))

Output:

 The original list: [’gfg’,’ is’, ’best’] Length of maximum string is: 4 

Method # 2: Using len () + key argument + max ()
A combination of the above functions can be used to accomplish this task. In this, we extract the maximum length using len () and max (). This is faster than the above method because it does more inline tasks rather than generator expression overhead.

# Python3 code to demonstrate how it works
# Extract the length of the longest line in the list
# using len () + the keyword argument + max ()

 
# initialize the list

test_list = [ ’gfg’ , ’is’ , ’ best’ ]

 
# print original list

print ( "The original list:" + str (test_list))

 
# Extract the length of the longest line in the list
# using len ( ) + key argument + max ()

res = len ( max (test_list, key = len ))

 
# print result

print ( "Length of maximum string is:" + str (res))

Output:

 The original list: [’gfg’,’ is’, ’best’] Length of maximum string is: 4 

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