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Python – Merge consecutive empty Strings

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  • Last Updated : 06 Mar, 2020
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Sometimes, while working with python lists we can have a problem in which we need to perform a merge operation on string of lists. This merge is consecutive to convert multiple spaces to one. Lets discuss certain way in which this can be performed.

Method #1 : Using loop
This is brute way in which this task can be performed. In this we find for empty strings using loop and ignore the consecutive strings in making of new list.




# Python3 code to demonstrate 
# Merge consecutive empty Strings
# using loop
  
# Initializing list
test_list = ['Gfg', '', '', '', 'is', '', '', 'best', '']
  
# printing original list
print("The original list is : " + str(test_list))
  
# Merge consecutive empty Strings
# using loop
count = 0
res = []
for ele in test_list:
    if ele =='':
        count += 1
        if (count % 2)== 0:
            res.append('')
            count = 0
    else:
        res.append(ele)
  
# printing result 
print ("List after removal of consecutive empty strings : " + str(res))

Output :

The original list is : ['Gfg', '', '', '', 'is', '', '', 'best', '']
List after removal of consecutive empty strings : ['Gfg', '', 'is', '', 'best', '']

 

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