# coding=utf8
# the above tag defines encoding for this document and is for Python 2.x compatibility
import re
regex = r"."
test_str = "Quisque et pharetra sapien. Aenean nunc leo, volutpat vel odio id, facilisis scelerisque lorem. Vivamus mollis vitae diam quis consequat. Vestibulum ut pulvinar risus. Nulla blandit nec velit at efficitur. Fusce convallis vehicula tellus et tempus. Aenean ac mattis felis, ac volutpat odio. Aenean faucibus tellus eget sodales gravida. Nulla nec malesuada sapien. Nullam sollicitudin lacus a sem congue, quis molestie dui mollis. Phasellus ornare iaculis diam sit amet posuere."
matches = re.finditer(regex, test_str, re.MULTILINE)
for matchNum, match in enumerate(matches, start=1):
print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group()))
for groupNum in range(0, len(match.groups())):
groupNum = groupNum + 1
print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum)))
# Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.
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