python - How to delete last part of a string starting from the 1st non numeric character?

I'm looking for a Python or VB statement to remove the last part of a string, starting where the 1st non Numeric character appears, using the Field Calculator in ArcMap 10. Here's an example of what I'm looking for:

Is it possible?

Answer

Here's a go at it. Use Python as the parser and check show Codeblock.

Enter this in the top Pre-Logic Script Code box:

def getints(field):


    integers = []
    for char in field:
        try:        
            value = int(char)
            integers.append(str(value))
        except ValueError:
            break

    return "".join(integers)

And put this in the bottom box:

getints(!YOURFIELD!)