L1 = ['Hello', 'World', 18, 'Apple', None] L2 = [mystr.lower() for mystr in L1 if isinstance(mystr,str)] print(L1) print(L2)
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SunSapphire
L1 = ['Hello', 'World', 18, 'Apple', None] L2 = [mystr.lower() for mystr in L1 if isinstance(mystr,str)] print(L1) print(L2)