Learning Python- Needing help with If/Then Field Calculator Script

Gtech301

Hello! I am very very new to Python and am needing help creating a script for Field Calculator and am having trouble finding an online resource- hoping someone here could help me! I created a script that populates a new field based off of existing attributes in an existing field but am needing to add a caveat that if another case is true, then this other condition supersedes all other conditions.

ie I currently have something along the lines of: 

def Reclass(field1):

if (field 1=='x'):

return "1"

if (field 1 =='y'):

return "2"

else:

return "3"

But I want to add something that says that no matter what is in field 1, if field 2 == y, return 4: a condition to supersede all the other conditions. 

Thanks in advance!

abaldenweck@blm.gov_BLM_EGIS

Should be straightforward.

Try something like this:

def reclass(field1, field2):
    # Check field2 and then immediately exit if it works.
    if field2 == "y":
        return 4
    # Start checking field1.
    if field1 == "x":
        return "1" 
    elif field1 == "y":
        return "2" 
    else:
        return "3"