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Book titles

How do i complete that practice called book titles, and i am stuck at that part to print first char and num of chars including spaces

10/17/2020 11:41:19 AM

JFMINEBOY João Felipe

15 Answers

New Answer

+4

Post the code you have tried. You have to: - open the file - give it a name - use readlines() to make a list of titles - print the first letter of each title and its length - for all the titles except the last one, shorten the length by 1 so as not to count the "\n" at the end. - close the file

+4

Very easy way to beat this challenge by cheating (se liga nessa João kkkkk不不不): file = open("/usercode/files/books.txt", "r") print('H12') print('T16') print('P19') print('G18') file.close()

+3

probably by using title(). But the only way anyone can help for sure is by posting your code, with a description of where you're stuck JFMINEBOY João Felipe post your code so we can see where the problem might be

+3

JFMINEBOY João Felipe

+3

A simpler way with 5 lines of code. A simple explanation, loop through all lines, and if a line has trailing/ending "\n" remove it from the count of the length. https://code.sololearn.com/cdaPdMWWeN3W/?ref=app

+2

So far so good. Now that you have a list of the titles, loop through it and print the first character and length of each title.

+2

I finished the task but I wonder why \n counts as one character instead of two ("\" and "n")

+2

Rami Muleys line[] is cyclic. line[0] is the first character. If you have 10 characters, line[9] is the last character. Due to cyclic, line[-1] is the also last character. And this is more dynamic and it works all for numbers of character length.

+1

How using readlines? I am trying titles = file.readlines()

+1

But i get invalid syntax on a line that do not exists?!

+1

JFMINEBOY João Felipe I suspect you may have copied and pasted a nonprinting character. I suggest starting over with a new code and type it in from scratch.

+1

thank you Lam

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- open the file - give it a name - use readlines() to make a list of titles - print the first letter of each title and its length - for all the titles except the last one, shorten the length by 1 so as not to count the "\n" at the end. - close the file file = open("/usercode/files/books.txt", "r") #your code goes here lines = file.readlines() for line in lines: letter = line[0] if line[-1] == "\n": number = len(line)-1 else: number = len(line) print (str(letter) + str(number)) file.close()

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\n here is a new line tag so it is counted as one

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ould you please explain why line[-1] is considered as the end of the string?