import re

​

txt = """There

aint much

rain in 

Spain"""

​

#Search for the sequence "ain", at the beginning of a line:

print(re.findall("^ain", txt, re.MULTILINE))

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#This example would return no matches without the re.MULTILINE flag, because the ^ character without re.MULTILINE only get a match at the very beginning of the text:

print(re.findall("^ain", txt))

​

​

#Same result with the shorthand re.M flag:

print(re.findall("^ain", txt, re.M))

​

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