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Python | Remove tuple from list of tuples if not containing any character
  • Last Updated : 26 Nov, 2019

Given a list of tuples, the task is to remove all those tuples which do not contain any character value.

Example:

Input: [(', ', 12), ('...', 55),
        ('-Geek', 115), ('Geeksfor', 115),]

Output: [('-Geek', 115), ('Geeksfor', 115)]

Method #1 : Using list comprehension




# Python code to remove all those 
# elements from list of tuple
# which does not contains any alphabet.
  
# List initialization
List = [(', ', 12), ('Paras', 5),
        ('jain.', 11), ('...', 55),
        ('-Geek', 115), ('Geeksfor', 115),
        (':', 63), ('Data', 3), ('-', 15),
        ('Structure', 32), ('Algo', 80),]
  
# Using list comprehension 
out = [(a, b) for a, b in List 
       if any(c.isalpha() for c in a)]
  
# Printing output
print(out)
Output:

[(‘Paras’, 5), (‘jain.’, 11), (‘-Geek’, 115), (‘Geeksfor’, 115), (‘Data’, 3), (‘Structure’, 32), (‘Algo’, 80)]



Method #2 : Using Regex




# Python code to remove all those 
# elements from list of tuple
# which does not contains any alphabet.
  
# List initialization
List = [(', ', 12), ('Paras', 5),
        ('jain.', 11), ('...', 55),
        ('-Geek', 115), ('Geeksfor', 115),
        (':', 63), ('Data', 3), ('-', 15),
        ('Structure', 32), ('Algo', 80),]
  
# Importing
import re
  
# Using regex
out = [t for t in List if re.search(r'\w', t[0])]
  
# Printing output
print(out)
Output:

[(‘Paras’, 5), (‘jain.’, 11), (‘-Geek’, 115), (‘Geeksfor’, 115), (‘Data’, 3), (‘Structure’, 32), (‘Algo’, 80)]


Method 3 : Using Filter and lambda




# Python code to remove all those 
# elements from list of tuple
# which does not contains any alphabet.
  
# List initialization
List = [(', ', 12), ('Paras', 5),
        ('jain.', 11), ('...', 55),
        ('-Geek', 115), ('Geeksfor', 115),
        (':', 63), ('Data', 3), ('-', 15),
        ('Structure', 32), ('Algo', 80),]
  
# Using filter
out = filter(lambda x:any(c.isalpha()
                for c in x[0]), List)
  
# Converting in list
out = list(out)
  
# Printing output
print(out)
Output:

[(‘Paras’, 5), (‘jain.’, 11), (‘-Geek’, 115), (‘Geeksfor’, 115), (‘Data’, 3), (‘Structure’, 32), (‘Algo’, 80)]

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