Keep numbers only in python using Lambda

Question

I am trying the following lines to keep only the digits

>>> s = "H3ll0 P30P13"
>>> filter(lambda x: x.isdigit(), s)
'303013'

But what I got is not '303013' but I got <filter at 0x1888b671408>. I am using Spyder IDE

`filter` method in python returns `iterator` that is filtered from the input. we can get the vaue by converting to list and join with space `"".join(list(filter(lambda x: x.isdigit(), s)))`. Hope this helps — Kumar KS, Nov 01 '20 at 18:38

Franco Piccolo · Accepted Answer · 2020-11-01T18:41:53.410

3

Try:

''.join(filter(lambda x: x.isdigit(), s))

edited Nov 01 '20 at 18:41

answered Nov 01 '20 at 18:35

Franco Piccolo

Thanks @MichaelSzczesny just updated the simplified answer. – Franco Piccolo Nov 01 '20 at 18:42

1 Answers1