get filename

how can i get the filename from this string?

string1 = "attachement; filename=test1234.mov"

filename = string1.parse(.......)

result:
filename = test1234.mov

if the equal sign will always be present then you split the string at it and get the second part:


string1 = "attachement; filename=test1234.mov"
filename = string1.split('=')[1]