return regex variable without knowing variable names

Question

I have this line of code:

hdfs_regex = re.compile(r'\s+(?P<unmatched>\d+)\s+\/\s+(?P<total>\d+)')

I run through a file and use:

results = re.search(hdfs_regex, line)

to look for the portion in the line that matches my regex. Upon match, is there a way to return each found matched regex variable?

Is there away to return ever found group without knowing the regex variable name?

Pseudocode would might look something like this

grouped_val = [i for i in results.grouped()]

where results.grouped() is an iterable that I can use to retrieve the found value without knowing the variable name

Kasravnd · Accepted Answer · 2015-03-04 16:16:55Z

2

You can use groups() that return a tuple containing all the subgroups of the matched patterns :

>>> m = re.search(r"(\d+)\.?(\d+)?", "24.13244")
>>> m.groups()
('24', '13244')

groups([default]) Return a tuple containing all the subgroups of the match, from 1 up to however many groups are in the pattern. The default argument is used for groups that did not participate in the match; it defaults to None. (Incompatibility note: in the original Python 1.5 release, if the tuple was one element long, a string would be returned instead. In later versions (from 1.5.1 on), a singleton tuple is returned in such cases.)

answered Mar 4, 2015 at 16:16

Kasravnd

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1 Comment

Liondancer Over a year ago

Just what I needed thanks! will accept when allowed!

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