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Python – Sort Strings by Case difference
When it is required to sort strings based on case difference, a method is defined that takes a string as a parameter. This method uses list comprehension and ‘isupper’ and ‘islower’ methods along with list comprehension to get case difference. Their difference gives the sorted values.
Example
Below is a demonstration of the same
def get_diff(my_string):
lower_count = len([ele for ele in my_string if ele.islower()])
upper_count = len([ele for ele in my_string if ele.isupper()])
return abs(lower_count - upper_count)
my_list = ["Abc", "Python", "best", "hello", "coders"]
print("The list is :")
print(my_list)
my_list.sort(key=get_diff)
print("Sorted Strings by case difference :")
print(my_list)Output
The list is : ['Abc', 'Python', 'best', ‘hello’, 'coders'] Sorted Strings by case difference : ['Abc', 'Python', 'best', 'coders', ‘hello’]
Explanation
A method named ‘get_diff’ is defined that takes a list of strings as a parameter.
List comprehension and ‘islower’ and ‘isupper’ methods are used to check if the strings are upper or lower case.
These values are stored in two different variables.
The absolute difference between these two variables is returned as output.
Outside the method, a list is defined and is displayed on the console.
The list is sorted based on the previously defined method.
This is the output that is displayed on the console.
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