In Ruby, instead of repeating the \"require\" (the \"import\" in Python) word lots of times, I do
%w{lib1 lib2 lib3 lib4 lib5}.each { |x| require x }
For known module, just separate them by commas:
import lib1, lib2, lib3, lib4, lib5
If you really need to programmatically import based on dynamic variables, a literal translation of your ruby would be:
modnames = "lib1 lib2 lib3 lib4 lib5".split()
for lib in modnames:
globals()[lib] = __import__(lib)
Though there's no need for this in your example.