FilesExpand file tree

 main

/

asyncio_basic.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

60 lines (45 loc) · 1.07 KB

 main

/

asyncio_basic.py

Copy path

Top

File metadata and controls

• Code
• Blame

60 lines (45 loc) · 1.07 KB

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

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

try:

import asyncio

except ImportError:

print("SKIP")

raise SystemExit

# CIRCUITPY-CHANGE: CircuitPython provides __await__()

async def foo():

return 42

try:

fooc = foo()

fooc.__await__

# Avoid "coroutine was never awaited" warning

asyncio.run(fooc)

except AttributeError:

print("SKIP")

raise SystemExit

import time

if hasattr(time, "ticks_ms"):

ticks = time.ticks_ms

ticks_diff = time.ticks_diff

else:

ticks = lambda: int(time.time() * 1000)

ticks_diff = lambda t1, t0: t1 - t0

async def delay_print(t, s):

await asyncio.sleep(t)

print(s)

async def main():

print("start")

await asyncio.sleep(0.001)

print("after sleep")

t0 = ticks()

await delay_print(0.2, "short")

t1 = ticks()

await delay_print(0.4, "long")

t2 = ticks()

await delay_print(-1, "negative")

t3 = ticks()

print(

"took {} {} {}".format(

round(ticks_diff(t1, t0), -2),

round(ticks_diff(t2, t1), -2),

round(ticks_diff(t3, t2), -2),

)

)

asyncio.run(main())