Question

How to convert a list lowercase characters to uppercase and uppercase to lowercase with Python

Answer 1

def flip_characters(l) : 
    length = len(l) 

    for i in range(length) : 
        if (ord(l[i]) >= 65 and ord(l[i]) <= 90) : 
            l[i] = chr(ord(l[i]) + 32)
        else :
            if (ord(l[i]) >= 97 and ord(l[i]) <= 122) : 
                l[i] = chr(ord(l[i]) - 32)
    return l
 
 
 
l = list("pyThon PROGrAMMINg")
       
l = flip_characters(l);

print(l) 
 
 
 
'''
run:
 
['P', 'Y', 't', 'H', 'O', 'N', ' ', 'p', 'r', 'o', 'g', 'R', 'a', 'm', 'm', 'i', 'n', 'G']
 
'''

 

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