String parsing

Question

How do I return true if all letters, in order, even though it is capital or not are in a string?

Answer 1

def checkstring(mystring):
if list(mystring.replace(' ', '').lower()) == sorted(mystring.replace(' ', '').lower()):
return True
else:
return False
mystring = 'Abc eFG'

print(checkstring(mystring))