python comparing text file - if else printing

I have 4 text files in the following formats

keycountry.txt

UK USA Germany

country.txt

Brexit - UK
USA UK Relations
France win world cup

keylink.txt

www.abc.com
www.ddd.com
www.eee.com

link.txt

www.abc.com
www.eee.com

The code:

import re

keycountryfile = "keycountry.txt"
countryfile = "country.txt"

links = open('links.txt', 'r')
links_data = links.read()
links.close()

keys = open('keylink.txt', 'r')
keys_data = keys.read()
keys.close()

keys_split = keys_data.splitlines()

print('LINKS')
for url in keys_split:
    if url in links_data:
        print(url)
        print("matching")
else:
    print("Not matching")   

keys = set(key.lower() for key in 
    re.findall(r'\w+', open(keycountryfile , "r").readline()))

print("COUNTRY")
with open(countryfile) as f:
    for line in f:
        words = set(word.lower() for word in re.findall(r'\w+', line))
        if keys & words:
            print(line, end='')
            print("matching")
    else:
        print("Not matching")

In the code print("matching") is repeating multiple times. I know since it's inside the loop it will repeat, print("Not matching") is not displaying when there are no matches. I tried putting the print statements inside and outside the loop but I just wasn't able to rectify the problem.

The output, if it matches, should be like:

LINKS
www.abc.com
www.eee.com
matching

COUNTRY
Brexit-UK
USA UK Relations
matching

The output, if it doesn't match, should be like:

LINKS
Not matching
COUNTRY
Not matching

How to go about this?