import re
regex = re.compile(r"(?:<\d+>)+", flags=re.MULTILINE)
test_str = "<0><1><2><3><4><5><6><7><8><9><10><11><12><13><14><15><16><17><18>The next 11 keys can change the SWING from OFF (50%) to <19><20><21><22><23><24><25>80<26><27><28><29><30><31><32>% during arpeggiator or sequencer operation.<33><34>"
matches = regex.finditer(test_str)
for match_num, match in enumerate(matches, start=1):
print(f"Match {match_num} was found at {match.start()}-{match.end()}: {match.group()}")
for group_num, group in enumerate(match.groups(), start=1):
print(f"Group {group_num} found at {match.start(group_num)}-{match.end(group_num)}: {group}")
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