vogais = 'aeiou'
palavra = input('Digite uma palavra: ')
for letra in palavra:
if letra in vogais:
print(letra.upper())
else:
print(letra)
#https://pt.stackoverflow.com/q/356136/101
dm9nYWlzID0gJ2FlaW91JwpwYWxhdnJhID0gaW5wdXQoJ0RpZ2l0ZSB1bWEgcGFsYXZyYTogJykKZm9yIGxldHJhIGluIHBhbGF2cmE6CiAgICBpZiBsZXRyYSBpbiB2b2dhaXM6CiAgICAJcHJpbnQobGV0cmEudXBwZXIoKSkKICAgIGVsc2U6CiAgICAJcHJpbnQobGV0cmEpCgojaHR0cHM6Ly9wdC5zdGFja292ZXJmbG93LmNvbS9xLzM1NjEzNi8xMDE=