Simple threaded counters

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examples/threads/simple_counter.py

import threading
import sys

class ThreadedCount(threading.Thread):
    def run(self):
        thread = threading.current_thread()
        print('{} - start'.format(thread.name))
        for c in range(10):
            print('{} - count {}'.format(thread.name, c))
        print('{} - end'.format(thread.name))
        return

a = ThreadedCount()
b = ThreadedCount()
c = ThreadedCount()
a.start()
b.start()
c.start()

print('main - running {} threads'.format(threading.active_count()))

a.join()
b.join()
c.join()
print("main - thread is done")

Thread-1 - start
Thread-1 - count 0
Thread-1 - count 1
Thread-2 - start
Thread-1 - count 2
Thread-2 - count 0
Thread-1 - count 3
Thread-3 - start
main - running 4 threads
Thread-2 - count 1
Thread-1 - count 4
Thread-2 - count 2
Thread-1 - count 5
Thread-2 - count 3
Thread-1 - count 6
Thread-2 - count 4
Thread-1 - count 7
Thread-2 - count 5
Thread-1 - count 8
Thread-2 - count 6
Thread-1 - count 9
Thread-2 - count 7
Thread-1 - end
Thread-2 - count 8
Thread-2 - count 9
Thread-2 - end
Thread-3 - count 0
Thread-3 - count 1
Thread-3 - count 2
Thread-3 - count 3
Thread-3 - count 4
Thread-3 - count 5
Thread-3 - count 6
Thread-3 - count 7
Thread-3 - count 8
Thread-3 - count 9
Thread-3 - end
main - thread is done