import re
regex = r"\"\w+\/\w+(?: \w+\/\w+)*\""
test_str = ("\"a/b b/c\"\n"
"\"a/b python/Java\"")
matches = re.findall(regex, test_str, re.MULTILINE)
for match in matches:
res = map(lambda s: s.replace("/", "") if len(s) == 3 else s, match.strip("\"").split())
print('"{0}"'.format(" ".join(res)))
aW1wb3J0IHJlCiAKcmVnZXggPSByIlwiXHcrXC9cdysoPzogXHcrXC9cdyspKlwiIgp0ZXN0X3N0ciA9ICgiXCJhL2IgYi9jXCJcbiIKCSJcImEvYiBweXRob24vSmF2YVwiIikKbWF0Y2hlcyA9IHJlLmZpbmRhbGwocmVnZXgsIHRlc3Rfc3RyLCByZS5NVUxUSUxJTkUpCiAKZm9yIG1hdGNoIGluIG1hdGNoZXM6CglyZXMgPSBtYXAobGFtYmRhIHM6IHMucmVwbGFjZSgiLyIsICIiKSBpZiBsZW4ocykgPT0gMyBlbHNlIHMsIG1hdGNoLnN0cmlwKCJcIiIpLnNwbGl0KCkpCglwcmludCgnInswfSInLmZvcm1hdCgiICIuam9pbihyZXMpKSkK