Removing text after comma

[MelissaDrake]

I have a field contains owners name

Doe, John and Jane

I am trying to remove everything so just the last name shows
Doe

I have tried several codes but nothing is working so far. I have Desktop 10.4

Could anyone give me some help please?

[HåkonDreyer]

Guessing you are using the field calculator, add a little Pre-Logic code:

def justname(txt):
   return txt[0: txt.find(',')]

[MelissaDrake]

Thank you! It worked

[DanPatterson_Retired · Accepted solution]

python parser in the field calculator, no need for a codeblock if it is a text field

!YourFieldName!.split(",")[0] ‍

[MelissaDrake]

Thank you! I really appreciated the help.