PythonExtra/tests/thread/thread_lock2.py
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00

27 lines
467 B
Python

# test _thread lock objects with multiple threads
#
# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
try:
import utime as time
except ImportError:
import time
import _thread
lock = _thread.allocate_lock()
def thread_entry():
lock.acquire()
print("have it")
lock.release()
# spawn the threads
for i in range(4):
_thread.start_new_thread(thread_entry, ())
# wait for threads to finish
time.sleep(1)
print("done")