Question

Intro to python:

Billy is writing a small script to save names he enters in to a file using a specified separator. He reads in names until the user enters an exclamation point indicating the end of the list of names at which point it writes the list to a file. Billy, however, is getting a strange error and isn't sure about how to fix the issue. Describe what is the error and how can you fix it?

def write_list_to_file(file_path, lst, sep='\n'):
   assert(isinstance(file_path, str)), "The file_path parameter must be a string."
   assert(isinstance(lst, list)), "The lst parameter must be a list."
   assert(isinstance(sep, str)), "The sep parameter must be a string."
file_h = open(file_path, "a")
file_h.write(sep.join(lst))
if sep != '\n':
file_h.write('\n')
file_h.close()

list_of_names = []

output_file = input("Output File: ")

separator = input("Separator: ")
if separator == "newline":
separator = '\n'
elif separator == "tab":
separator = '\t'
  
while True:
name = input("Name: ")
if name == '!':
break
else:
list_of_names.append(name)

write_list_to_file(output_file, list_of_names, separator)

Answer 1

Solution

Please find the snippet of code below..

def write_list_to_file(file_path, lst, sep='\n'):

assert(isinstance(file_path, str)), "The file_path parameter must be a string."

assert(isinstance(lst, list)), "The lst parameter must be a list."

assert(isinstance(sep, str)), "The sep parameter must be a string."

file_h = open(file_path, "a")

file_h.write(sep.join(lst))

if sep != '\n':

file_h.write('\n')

file_h.close()

list_of_names = []

output_file = input("Output File: ")

separator = input("Separator: ")

if separator == "newline":

separator = '\n'

elif separator == "tab":

separator = '\t'

while True:

name = input("Name: ")

if name == '!':

break

else:

list_of_names.append(name)

write_list_to_file(output_file, list_of_names, separator)

OUTPUT

Alright Dude, If that worked for you... don't forget to give THUMBS UP.(that will work for me!)