Python program to Convert a elements in a list of Tuples to Float
Given a Tuple list, convert all possible convertible elements to float.
Input : test_list = [(“3”, “Gfg”), (“1”, “26.45”)]
Output : [(3.0, ‘Gfg’), (1.0, 26.45)]
Explanation : Numerical strings converted to floats.Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.
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Input : test_list = [(“3”, “Gfg”)]
Output : [(3.0, ‘Gfg’)]
Explanation : Numerical strings converted to floats.
Method #1 : Using loop + isalpha() + float()
In this, we use a loop to iterate for all the tuples, check for alphabets using isalpha(), which cannot be converted to float, and for the rest of the elements float() is used to convert.
Python3
# Python3 code to demonstrate working of # Convert Tuple List elements to Float# Using loop + isalpha() + float # initializing listtest_list = [("3", "Gfg"), ("1", "26.45"), ("7.32", "8"), ("Gfg", "8")] # printing original listprint("The original list is : " + str(test_list)) res = []for tup in test_list: temp = [] for ele in tup: # check for string if ele.isalpha(): temp.append(ele) else: # convert to float temp.append(float(ele)) res.append((temp[0],temp[1])) # printing result print("The converted list : " + str(res)) |
Output:
The original list is : [(‘3’, ‘Gfg’), (‘1’, ‘26.45’), (‘7.32’, ‘8’), (‘Gfg’, ‘8’)]
The converted list : [(3.0, ‘Gfg’), (1.0, 26.45), (7.32, 8.0), (‘Gfg’, 8.0)]
Method #2 : Using loop + isalpha() + float() + list comprehension
In this, we perform the task of iterating through inner tuples using list comprehension.
Python3
# Python3 code to demonstrate working of # Convert Tuple List elements to Float# Using loop + isalpha() + float # initializing listtest_list = [("3", "Gfg"), ("1", "26.45"), ("7.32", "8"), ("Gfg", "8")] # printing original listprint("The original list is : " + str(test_list)) res = []for tup in test_list: # list comprehension to check for each case temp = [ele if ele.isalpha() else float(ele) for ele in tup] res.append((temp[0],temp[1])) # printing result print("The converted list : " + str(res)) |
Output:
The original list is : [(‘3’, ‘Gfg’), (‘1’, ‘26.45’), (‘7.32’, ‘8’), (‘Gfg’, ‘8’)]
The converted list : [(3.0, ‘Gfg’), (1.0, 26.45), (7.32, 8.0), (‘Gfg’, 8.0)]
