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)
+

Examples/week-07-threading-and-multiprocessing/lock/stdout_writer_solution.py

@@ -6,7 +6,7 @@
 # from meliae import scanner
 # scanner.dump_all_objects("meliae.dump") # you can pass a file-handle if you prefer
 
-NUMBER_OF_SPHERES = 150
+NUMBER_OF_SPHERES = 2
 
 size = width, height = 800, 600
 pygame.init()
@@ -18,8 +18,8 @@ def __init__(self):
         self.ball = pygame.image.load("ball.gif")
         self.x = random.random() * width
         self.y = random.random() * height
-        vx = 150*(random.random() - .5)
-        vy = 150*(random.random() - .5)
+        vx = 250*(random.random() - .5)
+        vy = 250*(random.random() - .5)
         self.v = [vx, vy]
 
     def update_v(self, other ):

Examples/week-07-profiling/data_aggregation/agg.py renamed to Examples/week-09-profiling/data_aggregation/agg.py

@@ -1,5 +1,7 @@
+from timer import timer
 
-@profile
+# @profile
+@timer
 def slow():
     s = ""
     with open('/usr/share/dict/words') as f:
@@ -9,7 +11,8 @@ def slow():
 
         return words
 
-@profile
+# @profile
+@timer
 def fast():
     with open('/usr/share/dict/words') as f:
         words = [w.upper() for w in f ]

Examples/week-07-profiling/data_aggregation/containers.py renamed to Examples/week-09-profiling/data_aggregation/containers.py

@@ -0,0 +1,3 @@
+�c_line_profiler
+LineStats
+q
)�q}q(UunitqG>������Utimingsq}ub.