What is the most effective method for updating a string that is already present in a file?
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- You can loop directly through the lines of a file using a for loop. True False You can pickle a complex piece of data, like a list or dictionary, and save it in its entirety to a text file. True FalseWrite code that opens an output file with the filename number_list.txt, but does not erase the file’s contents if it already exists.In Python Write a program that reads the contents of a text file and inserts the line numbers at the beginning of each line, then rewrites the file contents
- The method used to write an entire list to a file is known asa. writelinesb. writelinec. writelistsd. writelistWrite a program that asks the user for a file name and a string to search for. The program should search the file for every occurrence of a specified string. When the string is found, the line that contains it should be displayed. After all the occurrences have been located, the program should report the number of times the string appeared in the file.How do you read the contents of a text file that contains whitespace characters as part of its data?
- B9 Write a program that reads a file and find out the total uppercase, lowercase, whitespaces and digits occurred in the file.Write one line of code that reads a full line from a file with file handle fp into a string defined aschar line[256]. Do this using both fscanf and fgets.Why is it important to check whether a file exists or not before trying to open it for input?