Can I use re2 library with pandas?

Question

I'm using re2 library with Python 3 using this library: https://github.com/andreasvc/pyre2

I want to use this library inside pandas in this example:

pandas_series.str.contains(regex, case=False)

It's possible to use pandas and re2 library together in this example?

Answer 1

Since Pandas regex methods use re, you can only use apply and pass a custom method using RE2 regex.

You may use

import pandas as pd
import re2
df = pd.DataFrame({'test': [ 'abc' , 'def' , '123' ]})
def re2_contains(s, rx):
    return bool(rx.search(s))

rex = re2.compile(r'^[a-z]+$')
>>> df['test'].apply(lambda x: re2_contains(x, rex))
0     True
1     True
2    False
Name: test, dtype: bool