writing a program to copy source file to target file and remove empty lines then output total empty-CodePudding

I am trying to write a python program where;

user enters the source file to read and the target file to write.
Copy contents from the source file to the target file.
Remove empty extra lines.
output the number of empty lines that were removed.

I currently have written code to perform this but cant work out how to output the total number of empty lines that were removed. Could someone please explain what I am doing wrong?

f1 = open(input("Source file name: "))
f2 = open(input("Target file name: "), mode = 'w')
for line in f1:
    if not line.strip(): continue
    f2.write(line)

f1.close()
f2.close()
print("lines removed:")

output should be as followed

source file name : string.txt
target file name: string_empty.txt
lines removed : 15

CodePudding user response：

You can introduce a counter variable into your for loop, so that each time you do not copy a line it increases by 1:

count = 0 #counter variable
for line in f1:
    if not line.strip():
        count  = 1
        continue
    f2.write(line)

f1.close()
f2.close()
print("lines removed:", count)