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heapalloc_fail_list.py

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# test handling of failed heap allocation with list

import micropython

class GetSlice:

def __getitem__(self, idx):

return idx

sl = GetSlice()[:]

# create slice in VM

l = [1, 2, 3]

micropython.heap_lock()

try:

print(l[0:1])

except MemoryError:

print("MemoryError: list index")

micropython.heap_unlock()

# get from list using slice

micropython.heap_lock()

try:

l[sl]

except MemoryError:

print("MemoryError: list get slice")

micropython.heap_unlock()

# extend list using slice subscr

l = [1, 2]

l2 = [3, 4, 5, 6, 7, 8, 9, 10]

micropython.heap_lock()

try:

l[sl] = l2

except MemoryError:

print("MemoryError: list extend slice")

micropython.heap_unlock()

print(l)