Question

In python Complete the function get_Astring(filename) to read the file contents from filename (note that the test will use the file data.txt and data2.txt provided in the second and third tabs), strip off the newline character at the end of each line and return the contents as a single string.

Answer 1

Program code to copy:-

#This function to reads the contents from file passed as parameter and
#strip off the newline character at the end of each line and
#returns the contents as a single string.
def get_Astring(filename):

    #Opening the file for reading
    fin = open(filename, "r")

    #Declaring a variable to hold the final string after strip off new linw
    string = ""

    #for loop read the content of file line by line and
    #store each line into variable 'line' till end of input file
    for line in fin:
        loc = 0;
        #while loop will check every character of line read from file and
        #add the character to 'string' variable which is not a newline
        while loc < len(line):
            if(line[loc] != '\n'):
                string = string + line[loc]   

            loc = loc + 1

    #closing file
    fin.close()
    #returns string without newline character
    return string    

#Code to test get_Astring() function by calling it in main() function
def main():
    #Prompt and reads filename from user
    filename = input('Enter the file name: ')

    #Calling function to get string without newlinw character
    string = get_Astring(filename)
    #Displaying the value of string returned from function
    print(string)    

#Calling main() function
main()

Screenshot of program code to understand the indentation:-

Screenshot of output:-

Origional content of file(data2.txt) used to test the program:-

Python is a general purpose, interpreted,
platform independent, dynamically typed,
object-oriented programming language.
It has a large collection of in-built library functions.