Python program to count total number of uppercase and lowercase characters in file

Program to read data from files and count uppercase and lowercase character

# Program to count total number of 
# uppercase and lowercase characters in file

# Start of try block
try:
    #Counter for characters...
    upperCount = 0
    lowerCount = 0

    F=open("file.dat","r")
    while(True):
        data=F.read(1)
        if(data==""):
            break
        if (data.isupper()): 
                upperCount = upperCount + 1
        elif (data.islower()): 
                lowerCount = lowerCount + 1
                
    print(data,end='')
        
    print("Total Upper Case:",upperCount)
    print("Total lower Case:",lowerCount)
except FileNotFoundError as e:
    print(e)
finally:
    F.close()

File : File.dat

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Output:

Total Upper Case: 5
Total lower Case: 24