Need print out lines before and after the match

[tester_V]

Greeting!
I’m trying to print 4 lines before and after a “match” found in a line.
I do not understand how to do it with my current knowledge of Python but I found 2 snippets,
One finds lines Before the match and one After the match. Need help putting them together.
Thank you.

from itertools import islice

with open(myfile, "r") as f:
    lines = f.readlines() 
    for index, line in enumerate(lines):  
        if "FIND" in line:  
#            print(line.rstrip())  
            print("".join(lines[max(0,index-4):index]))  # print 4 lines preceeding it

with open(myfile, "r") as f:
    for line in f:
        #print (line)
        if "FIND" in line:
            #print (line)
            #print("".join(line))
            print ("".join(islice(f,4)))   ### 4 Lines after match  ###