Please explain this code clearly.

Question

def count_char(text, char):
count = 0
for c in text:
if c == char:
count += 1
return count

filename = input("Enter a filename: ")
with open(filename) as f:
text = f.read()

for char in "abcdefghijklmnopqrstuvwxyz":
perc = 100 * count_char(text, char) / len(text)
print("{0} - {1}%".format(char, round(perc, 2)))

Answer 1

text variable contains all the file data

count_char function takes that whole data as text and an alphabet ("abcdefgh...") And returns a count of the number of times it appeared in that text

for loop iterates over the string sequence of alphabets assigning each character in that string to char variable ,so the loop runs 26 times for each alphabet

Now perc calculate the percentage for each alphabet that appeared in the text like if "a" appeared 40 times then (40/length of text)*100

Answer 2

thanks