(6) Write a python program that asks the user for two filenames and calls your function copy_even_lines() from (5) using those two filenames. If one or more files do not exist, your program must handle the exception by repeating the prompts until valid filenames are entered.
(6) Write a python program that asks the user for two filenames and calls your function copy_even_lines() from (5) using those two filenames. If one or more files do not exist, your program must handle the exception by repeating the prompts until valid filenames are entered.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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The programe code is (5) thats being reffered.
(6) Write a python program that asks the user for two filenames and calls your function copy_even_lines() from (5) using those two filenames. If one or more files do not exist, your program must handle the exception by repeating the prompts until valid filenames are entered.
Transcribed Image Text:(6) Write a python program that asks the user for two filenames and calls your function
copy_even_lines() from (5) using those two filenames. If one or more files do not
exist, your program must handle the exception by repeating the prompts until valid
filenames are entered.
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prac5.py - Workshop - Visual Studio Code
ệ practiceeee.py
ệ prac2.py
e PP T2Q3.py
ệ prac4.py
ệ prac5.py
E Test.txt
E file_name.txt
EXPLORER
...
v WORKSHOP
C: > Users > usama > OneDrive > Desktop > Programming > Uni > Tutorials > 101205034_T7 > ở prac5.py > ..
E file_name.txt
1
def copy_even_lines(string1, string2):
E Test.txt
2
# to clear the content of file2
with open(string2, 'r+') as f2:
f2.truncate(0)
3
4
# find the even line data from file1 and write it into file2
7
with open(string1, 'r') as f1:
8
count = 0
for line in f1:
10
count+=1
11
if count % 2 == 0:
A
with open(string2, 'a') as f2:
f2.write(line)
f2.close()
12
13
14
15
# 1st argument file1 from you want to copy the data
# 2nd argument file2 in which you want to write the copied data
copy_even_lines("Test.txt","file_name.txt")
16
17
18
OUTLINE
Python 3.9.7 64-bit
O 0 A 0
Ln 18, Col 44 Spaces: 4
UTF-8
Python O
CRLF
ENG
4:12 AM
US
2021-11-18
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