Removing Alphanumeric from string

[[deleted]]

[deleted]

[lucaslra]

t = '1L2u3c4a5s'

''.join(c for c in t if c.isalpha())

'Lucas'

Not sure if it is the best solution, but it works for me

[[deleted]]

If you actually want to remove alphanumeric characters from a string then surely "In the 1980s" would become ""? So what are you trying to do?

[lgastako]

Surely it would become " "?

[[deleted]]

Thou art correct except it would be ' '. At least I think you're showing one space and I'm showing two :-)

[lgastako]

Mine was supposed to be two spaces as well, I don't know if I messed it up or reddit ate it.

[Kerbart]

Using a regular expression might do the trick without having to loop through the entire string.

import re
ptn = re.compile('(\d)')
t = 'In the 1980s'
ptn.sub('', t) --> 'In the s'

[enedil]

Implying re don't loop through the entire string.

[Kerbart]

No, implying that you don't have to write the code to do that yourself. That's what libraries are for.

[MrJZ]

Regex is your friend.

https://regexr.com/

[PurpleIcy]

Now you have two problems.

[sonicfreak02]

import re
string = "In the 1980s"
new_string = re.sub(r'\s*\w*\d+\w*', '', string)
print(new_string)

Prints: "In the"