week 09 updates

Author: jsheedy

Examples/week-07-profiling/integrate/pycallgraph.png

@@ -0,0 +1,20 @@
+import random
+import sys
+import threading
+import time
+
+lock = threading.Lock()
+
+def write():
+    lock.acquire()
+    sys.stdout.write( "%s writing.." % threading.current_thread().name)
+    time.sleep(random.random())
+    sys.stdout.write( "..done\n")
+    lock.release()
+
+
+while True:
+    thread = threading.Thread(target=write)
+    thread.start()
+    time.sleep(.1)
+