02_crud_set.py

set_countries = { 'col', 'mex', 'bol' }

size = len(set_countries)
print(size)

print('col' in set_countries)
print('pe' in set_countries)

# add
set_countries.add('pe')
print(set_countries)

set_countries.add('pe')
print(set_countries)

# update
set_countries.update({'ar', 'ecua', 'pe'})
print(set_countries)

# remove

set_countries.remove('col')
print(set_countries)

# set_countries.remove('arg') error
set_countries.discard('arg')
print(set_countries)

set_countries.clear()
print(set_countries)
print(len(set_countries))