Extracting Date from String with Regular Expressions for Python

Can anyone tell me why the following isn't working:

I am reading lines from a file, some lines have a date at the beginning and some lines do not. I wanted to use regex to detect if a line I am reading in from the file has a date at the beginning, if it does then I want to do some further parsing. If it does not, I just want to ignore it. The following is a sample line:

" JAN 01 19 BALANCE FORWARD: 32 CHQ PLAN 33 222.13 "

When I use the re.findall, it appears my regular expression is incorrect as I am hoping to extract the date "JAN 01 19" but instead all I get returned is "JAN":

line = " JAN 01 19 BALANCE FORWARD: 32 CHQ PLAN 33                        222.13        "
print(re.findall(r"(JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC) \d{2} \d{2}", line))

Output:

['JAN']

What I am hoping to see is:

['JAN 01 19']

From what I understand of regex, the (JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC) part should be checking for one of these months in the string, I then have a space and then I am looking for a 2 digit number with \d{2}, then another space and then another 2 digit number with \d{2}.

I tried testing this out on https://regex101.com/ and I seem to get a match of 'JAN 01 19' so I am really unsure why the regular expression is not working when I move this to Python.

regex101.com Output

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