
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Show how example code of how to find the repeated lines of code within a file using loops. No functions can be used to complete this.
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- Debug the following phython code. """This function reads in data from the file specified by filename. This data is read line by line and unpacked into a single variable called data. argumentsfilename - the name of the file to be read returnsdata - a list of data, each element is a list that corresponds to the set of entries separated by commas in the original file. To access the first entry use data[0]. If x = data[0], then x[0], through x[3] will correspond to entries in the file that are read in. """ def read_file(filename):fin = open(filename,'r')line = fin.readline()data = []while line:data.append(parse_line(line))line = fin.readline()return dataarrow_forwardpls code in pythonplagiarism: This Boolean function takes two filenames. If any line occurs in both files, return True.If not, return False. I suggest using nested loops. With nested loops, we call the loop that is in thebody of the other loop, the "inner loop". The loop that contains the inner loop is the "outer loop". Openthe second file inside the outer loop:for line1 in file1:file2 = open(fname2)for line2 in file2:Python only lets you read the file once per open, so you need this order of instructions. Make sure yourreturn False is outside of both loops. Otherwise, you will only compare the first two lines of thefiles. Make sure you close the file that gets read repeatedly after the inner loop but still inside the outerloop.Here is some (more complete) pseudocode to get you started:open file 1for line1 in file 1open file 2for line2 in file 2:if line1 == line2:return Trueclose file 2return Falsearrow_forwardI need help on my python assignment.arrow_forward
- write a python function that will read data from a file, store it in a matrix, and return itarrow_forwardWrite a Python function ‘AVGCSV’ that reads a .csv file that includes ‘n’ rows and ‘m’ columns, it calculates the average of each row and writes it at the end of the row, and it calculates the average of each column and writes it at the end of the column. The function should modify the .csv file and save it after adding all the averages.arrow_forwardPlease I want a python program for this using CSV write a function that takes a list of strings as inputs, and returns a single string created by joining all the input strings together, with a comma separating them. Now write another function that takes a list of lists of strings, applies the operation from question 1 to each list, and writes the result as a row of an output file. The function should return the path to the file where the strings were written. 3. Now, write the reverse of question 2: write a function that takes in a filename (which we will assume is a CSV), and returns a list of lists of strings, where one row in the file corresponds to one list in the output list (and each value between the commas in the file row is one element in the list).arrow_forward
- PYTHON cannot use numpy, opencv, array, readline( ), or enumerate. can only use open, read, write, and close methods for files. please utilize split and append functionsarrow_forwardExample problem. You have over 500 lines of code within a file that represent people. Some people(lines) are repeated within the file. Show an example program for how to ignore the repeated people(lines) using loops. The output from your program should read, "A total of # people are in the data file ."No functions can be used to complete this, includes file.readlines.arrow_forward9b_act2. Please help me answer this in python programming.arrow_forward
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