import re
regex = re.compile(r"^(?:00?|\+)330?|(?!\n)\W", flags=re.MULTILINE)
test_str = ("+331234567\n"
"+3301234567\n"
"00331234567\n"
"003301234567\n"
"0331234567\n"
"033-123-456-7\n"
"0033.1234567")
subst = ""
result = regex.sub(subst, test_str)
if result:
print(result)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html