Python | Concatenate values ​​of a list of strings of a tuple with a string



Method # 1: Using List Comprehension + join()
A combination of the above functionality can be used to achieve the above task. In this we get a list of characters using a list comprehension and the conversion task is done by join () .

# Python3 code to demonstrate how it works
# Merge Tuple String List of values ​​in string
# using list comprehension + join ()

 
# initialize the list

test_list = [([ `g` , `f` , ` g` ], 1 ), ([ `i` , ` s`  ], 2 ), ([ `b` , ` e` , `s` , ` t` ], 3 )]

 
# print the original list

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

 
# Merge Tuple String List of values ​​in string
# using list comprehension + join ()

res =   [`` .join (i) for i, j in test_list]

 
# print result

print ( "The joined character list tuple element to string is:" + str (res))

Output:

The original list: [([`g`, `f`, `g`], 1), ([`i`, `s`], 2), ([` b `,` e `,` s`, `t`], 3)]
The joined character list tuple element to string is: [`gfg`, `is`,` best `]

Method # 2: Using map () + join () + lambda
The task accomplished by comprehending the list in the above method can be done with map (), and lamb yes function can be used to build logic to achieve this task.

# Python3 code to demonstrate how it works
# Merge Tuple String List of values ​​into a string
# using map () + join () + lambda

 
# initialize the list

test_list = [([ `g` , `f` , ` g` ], 1 ), ([ ` i` , `s` ],   2 ), ([ `b` , ` e` , `s` , `t` ], 3 )]

 
# print original list

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

 
# Merge Tuple String List of values ​​in a string
# using map () + join () + lambda

res = list ( map ( lambda sub: "" .join (sub [ 0 ]), test_list ))

 
# print result

print ( "The joined character list tuple element to string is:" + str (res))

Output:

The original list: [([`g` , `f`, `g`], 1), ([`i`, `s`], 2), ([`b`, `e`, ​​`s`, `t`], 3)]
The joined character list tuple element to string is: [`gfg`, `is`, `best`]