how to count specific character in text file using python?

Question

#Exercise 7: Counting...1...2...3...
#The purpose of this program is to ask a file from the user, open the file 
# and counts the number of comma-separated values in it and report the result to the user

name_file = input("Enter name of file: ")

inf = open(name_file, "r")

count_comma = 0 


line = inf.readline()

for char in line:
    if "," in char:
       count_comma +=1

print (count_comma)
inf.close()

when i run it prints 0. why?

because `line` doesn't contain commas... you can achieve the same thing with `line.count(",")` — Jean-François Fabre, Dec 04 '18 at 19:41
I'd update your question title to 'count the number of fields in a delimited string' -- and if my answer was satisfactory please accept it as such — Schalton, Dec 05 '18 at 19:37

score -1 · Answer 1 · answered Dec 04 '18 at 19:50

-1

you're probably better off with

count_comma = len(line.split(","))

but you'd have to run timeit to be sure

answered Dec 04 '18 at 19:50

Schalton

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Thank you @Schalton – Carmina Mendoza Dec 04 '18 at 22:05

how to count specific character in text file using python?

1 Answers1