Replace the target string with the replacement string

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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So i have this code right here but for some reason it takes my outfile and deletes it completely instead of changing every occurrence of the word mask with hat.
 
I CANT USE THE REPLACE METHOD,COUNT METHOD, RANGE(), LISTS, or SPLIT METHOD and have been struggling for a week now on this. Ive used the replace method by accident and don't know another way to do this.
 
 
 
 
 
#Get input file name

fileOne = input("Enter the input file name :")

#Get output file name

fileTwo = input("Enter the output file name :")

'''Get a string that will be searched in the source file

to locate all occurrences of the string'''

targetString = input("Enter the target string :")

'''Get a string that will replace each occurrence of the target

string in the source file'''

replacementString = input("Enter the replacement string :")

#Open the input file in read mode

f1 = open(fileOne,"r+")

#Read the content of input file

content=f1.read()

#Replace the target string with the replacement string

contentToWrite=content.replace(targetString, replacementString)

#Open the output file in write mode

f1 = open(fileTwo,"w")

'''Write the content after all of the occurrences of the target

string have been found and replaced by the replacement string'''

f1.write(contentToWrite)
main.py
inFile.py
outfile.py
Overview
wear masks with two or more layers to stop the spread of COVID-19
wear the mask over your nose and mouth and secure it under your chin
masks should be worn by people two years and older
masks should NOT be worn by children younger than two, people who have trouble
breathing, or people who cannot remove the mask without assistance
do NOT wear masks intended for healthcare workers, for example, N95 respirators
CDC does not recommend the use of face shields alone. Evaluation of face shields
is ongoing but effectiveness is unknown at this time.
evaluation of mask and gaiter materials and structure is ongoing.
Transcribed Image Text:main.py inFile.py outfile.py Overview wear masks with two or more layers to stop the spread of COVID-19 wear the mask over your nose and mouth and secure it under your chin masks should be worn by people two years and older masks should NOT be worn by children younger than two, people who have trouble breathing, or people who cannot remove the mask without assistance do NOT wear masks intended for healthcare workers, for example, N95 respirators CDC does not recommend the use of face shields alone. Evaluation of face shields is ongoing but effectiveness is unknown at this time. evaluation of mask and gaiter materials and structure is ongoing.
Enter the input file name: inFile.txt
Enter the output file name: outFile.txt
Enter target string: mask
Enter the replacement string: hat
inFile.txt for this example contains:
overview
wear masks with two or more layers to stop the spread of COVID-19
wear the mask over your nose and mouth and secure it under your chin
masks should be worn by people two years and older
- masks should NOT be worn by children younger than two, people who have
- do NOT wear masks intended for healthcare workers, for example, N95 re
- CDC does not recommend the use of face shields alone. Evaluation of få
- evaluation of mask and gaiter materials and structure is ongoing.
outFile.txt, after replacing each occurrence of the string 'mask' with 'hat' looks like this:
Overview
- wear hats with two or more layers to stop the spread of COVID-19
- wear the hat over your nose and mouth and secure it under your chin
hats should be worn by people two years and older
hats should NOT be worn by children younger than two, people who have
do NOT wear hats intended for healthcare workers, for example, N95 res
- CDC does not recommend the use of face shields alone. Evaluation of fa
- evaluation of hat and gaiter materials and structure is ongoing.
All strings are case-sensitive. That is, 'the' will NOT match 'The' in the source string.
Transcribed Image Text:Enter the input file name: inFile.txt Enter the output file name: outFile.txt Enter target string: mask Enter the replacement string: hat inFile.txt for this example contains: overview wear masks with two or more layers to stop the spread of COVID-19 wear the mask over your nose and mouth and secure it under your chin masks should be worn by people two years and older - masks should NOT be worn by children younger than two, people who have - do NOT wear masks intended for healthcare workers, for example, N95 re - CDC does not recommend the use of face shields alone. Evaluation of få - evaluation of mask and gaiter materials and structure is ongoing. outFile.txt, after replacing each occurrence of the string 'mask' with 'hat' looks like this: Overview - wear hats with two or more layers to stop the spread of COVID-19 - wear the hat over your nose and mouth and secure it under your chin hats should be worn by people two years and older hats should NOT be worn by children younger than two, people who have do NOT wear hats intended for healthcare workers, for example, N95 res - CDC does not recommend the use of face shields alone. Evaluation of fa - evaluation of hat and gaiter materials and structure is ongoing. All strings are case-sensitive. That is, 'the' will NOT match 'The' in the source string.
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