FilesExpand file tree

 encoding

/

heapalloc_traceback.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

40 lines (35 loc) · 887 Bytes

 encoding

/

heapalloc_traceback.py

Copy path

Top

File metadata and controls

• Code
• Blame

40 lines (35 loc) · 887 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

# test that we can generate a traceback without allocating

import micropython

import sys

try:

import uio

except ImportError:

print("SKIP")

raise SystemExit

# preallocate exception instance with some room for a traceback

global_exc = StopIteration()

try:

raise global_exc

except:

pass

def test():

micropython.heap_lock()

global global_exc

global_exc.__traceback__ = None

try:

raise global_exc

except StopIteration:

print('StopIteration')

micropython.heap_unlock()

# call test() with heap allocation disabled

test()

# print the exception that was raised

buf = uio.StringIO()

sys.print_exception(global_exc, buf)

for l in buf.getvalue().split("\n"):

# uPy on pyboard prints <stdin> as file, so remove filename.

if l.startswith(" File "):

l = l.split('"')

print(l[0], l[2])

else:

print(l)