import re
s = 'xyx 234 aa,44XY.aaAyyy984a ABCax@#$Yxx3yYa x aa.'
pattern = r'\w+' # sequence of alphanumeric characters
for match in re.findall(pattern, s):
print('Found: {!r}'.format(match))
'''
run:
Found: 'xyx'
Found: '234'
Found: 'aa'
Found: '44XY'
Found: 'aaAyyy984a'
Found: 'ABCax'
Found: 'Yxx3yYa'
Found: 'x'
Found: 'aa'
'''