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Python | Remove tuples from list of tuples if greater than n
  • Last Updated : 28 Feb, 2019

Given a list of a tuple, the task is to remove all the tuples from list, if it’s greater than n (say 100). Let’s discuss a few methods for the same.

Method #1: Using lambda

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# Python code to demonstrate
# to remove the tuples
# if certain criteria met
  
# initialising _list
ini_tuple = [('b', 100), ('c', 200), ('c', 45),
                         ('d', 876), ('e', 75)]
  
# printing iniial_tuplelist
print("intial_list", str(ini_tuple))
  
# removing tuples for condition met
result = [i for i in ini_tuple if i[1] <= 100]
  
# printing resultant tuple list
print ("Resultant tuple list: ", str(result))
             

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Output:

intial_list [(‘b’, 100), (‘c’, 200), (‘c’, 45), (‘d’, 876), (‘e’, 75)]
Resultant tuple list: [(‘b’, 100), (‘c’, 45), (‘e’, 75)]

 
Method #2: Using filter + lambda



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# Python code to demonstrate
# to remove the tuples
# if certain criteria met
  
# initialising _list
ini_tuple = [('b', 100), ('c', 200), ('c', 45),
                         ('d', 876), ('e', 75)]
  
# printing iniial_tuplelist
print("intial_list", str(ini_tuple))
  
# removing tuples for condition met
result = list(filter(lambda x: x[1] <= 100, ini_tuple))
  
# printing resultant tuple list
print ("Resultant tuple list: ", str(result))

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Output:

intial_list [(‘b’, 100), (‘c’, 200), (‘c’, 45), (‘d’, 876), (‘e’, 75)]
Resultant tuple list: [(‘b’, 100), (‘c’, 45), (‘e’, 75)]

 
Method #3: Using Naive Method

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# Python code to demonstrate
# to remove the tuples
# if certain criteria met
  
# initialising _list
ini_tuple = [('b', 100), ('c', 200), ('c', 45), 
                         ('d', 876), ('e', 75)]
  
# printing iniial_tuplelist
print("intial_list", str(ini_tuple))
  
# removing tuples for condition met
result = []
for i in ini_tuple:
    if i[1] <= 100:
        result.append(i)
  
# printing resultant tuple list
print ("Resultant tuple list: ", str(result))
            

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Output:

intial_list [(‘b’, 100), (‘c’, 200), (‘c’, 45), (‘d’, 876), (‘e’, 75)]
Resultant tuple list: [(‘b’, 100), (‘c’, 45), (‘e’, 75)]

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