Question

in python in the simplest way

I have a file “a.txt” under the directory /temp/, the file contains some company names, the format is like that:

IBM

APPLE

cisco

Microsoft ……

Each line contains only one company name. Among these company names, some are capitalized such as IBM, APPLE, some are not, such as cisco. Write a program to read this file a.txt and convert all names to uppercase and save them to the file name “b.txt” in the same directory, and make sure they are SORTED in alphabetical order. For the example of companies above, the result file b.txt should look like:

APPLE

CISCO

IBM

MICROSOFT

Answer 1

Code:

#opening a.txt in read mode
f = open("temp/a.txt", "r")
#opening b.txt in write mode
fp = open("temp/b.txt","w")
#reading lines and storing in an list
list1 = f.read().split("\n")
list2 = []
#changing list items to uppercase using .upper()
for i in list1:
   list2.append(i.upper())
#writing the items in list to b.txt as one company per line
#in alphabetical order
for j in sorted(list2):
   fp.write(j)
   fp.write("\n")
#closing the opened files
fp.close()
f.close()
#opening the file b.txt to read its contents
fp = open("temp/b.txt","r")
print(fp.read())

fp.cloae()

Screenshots

file a.txt

file b.txt

after compiling the outputs in the compiler and the b.txt are

OUTPUT

updated file

b.txt

Any queries comment please

Thank you:)