# test handling of failed heap allocation with set

import micropython

# create set
x = 1
micropython.heap_lock()
try:
    {x,}
except MemoryError:
    print('MemoryError: set create')
micropython.heap_unlock()

# set copy
s = {1, 2}
micropython.heap_lock()
try:
    s.copy()
except MemoryError:
    print('MemoryError: set copy')
micropython.heap_unlock()

# test handling of failed heap allocation with set

import micropython

# create set
x = 1
micropython.heap_lock()
try:
    {x}
except MemoryError:
    print('MemoryError: set create')
micropython.heap_unlock()

# set copy
s = {1, 2}
micropython.heap_lock()
try:
    s.copy()
except MemoryError:
    print('MemoryError: set copy')
micropython.heap_unlock()

Remove extra trailing comma.