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Python | Selective corpus to String

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Method # 1: Using enumerate () + loop + upper ()
This problem can be solved using many of the above functions. This is a crude method for accomplishing this task, in which we iterate over each item in the line and change it to uppercase if it is in the changelog.

# Python3 code for demonstrations
# Selective corpus in String
# using loop + upper () + enumerate ()

 
# initialize string

test_str = ’gfg is best’

 
# print the original line

print ( "The original string:" + str (test_str))

 
# initialize changelog

chg_list = [ ’g’ , ’ f’ , ’s’ ]

  
# Selective corpus in String
# using loop + upper () + enumerate ()

res = list (test_str)

for idx, char in enumerate (res):

  if char in chg_list :

res [idx] = char.upper ()

 
# print result

print ( "String after Selective casing:" + str (’’. join (res)))

Exit:

 The original string: gfg is best String after Selective casing: GFG iS beSt 

& amp; Nsbp;

Method # 2: Using comprehension list + upper () + join ()
This is a shorthand version of this problem can be solved. In this we accomplish a task similar to the one described above, but one line using a list comprehension.

# Python3 code to demonstrate how it works
# Selective body in String
# using comprehension list + upper () + join ()

 
# initialize string

test_str = ’gfg is best’

  
# print the original line

print ( "The original string:" + str (test_str))

< code class = "undefined spaces">  
# initialize changelog

chg_list = [ ’g’ , ’f’ , ’ s’ ]

 
# Selective body in String
# use comprehension list + upper () + join ()

res = ’’ .join ([char.upper () if char in chg_list

else char for char in test_str])

 
# print result

print ( "String after Selective casing:" + str (’’ .join (res)))

Output:

 The original string: gfg is best String after Selective casing: GFG iS beSt 

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