cleaned up session 09 and added ipython log.

Author: PythonCHB

.gitignore

@@ -1,5 +1,6 @@
 slides_sources/build
 
+.DS_Store
 #ignore compiled files, sublime workspace and project files
 *.pyc
 *.sublime*

Examples/Session09/decorators.py

@@ -9,9 +9,9 @@ def new_function(*args, **kwargs):
 
 
 def add(a, b):
-    print "Function 'add' called with args: %r" % locals()
+#    print "Function 'add' called with args: %r" % locals()
     result = a + b
-    print "\tResult --> %r" % result
+#    print "\tResult --> %r" % result
     return result
 
 
@@ -32,7 +32,7 @@ def simple_add(a, b):
     return a + b
 
 
-class Memoize:
+class Memoize(object):
     """
     memoize decorator from avinash.vora
     http://avinashv.net/2008/04/python-decorators-syntactic-sugar/
@@ -49,9 +49,13 @@ def __call__(self, *args):  # runs when memoize instance is called
             return self.memoized[args]
 
 
-@Memoize
+#@Memoize
 def sum2x(n):
     return sum(2 * i for i in xrange(n))
+sum2x = Memoize(sum2x)
+
+
+
 
 import time
 
@@ -69,3 +73,5 @@ def timed(*args, **kwargs):
 @Memoize
 def sum2x(n):
     return sum(2 * i for i in xrange(n))
+
+

Examples/Session09/ipythonlog.txt

@@ -0,0 +1,180 @@
+# IPython log file
+
+
+get_ipython().magic(u'run decorators.py')
+add
+add(2,3)
+get_ipython().magic(u'run decorators.py')
+add(2,3)
+new_add = substitute(add)
+new_add(2,3)
+@substitute
+def fun(1,2,3)
+@substitute
+def fun(1,2,3):
+    print "in fun"
+    
+@substitute
+def fun(a,b):
+    print "in fun"
+    
+fun()
+@logged_func
+def fun(a,b):
+    print "in fun"
+    
+fun(2,3)
+fun(2,3,fred=4)
+get_ipython().magic(u'run decorators.py')
+get_ipython().magic(u'timeit sum2x(10)')
+get_ipython().magic(u'run decorators.py')
+get_ipython().magic(u'timeit sum2x(10)')
+sum2x(100000000)
+sum2x(100000000)
+sum2x(10000000)
+sum2x(10000000)
+type(sum2x)
+sum2x.function
+sum2x.function(10)
+sum2x.memoized
+@Memoize
+def other_fun():
+def other_fun(x):
+    
+@Memoize
+def fun2(x):
+    return x**100
+
+fun2(4)
+fun2(4)
+fun2.memoized
+@Memoize
+def fun2asdf(x):
+    return x**100
+
+get_ipython().magic(u'run decorators.py')
+sum2x(1e6)
+sum2x(1000000)
+get_ipython().magic(u'run decorators.py')
+sum2x(1000000)
+sum2x(1000000)
+sum2x(10000000)
+sum2x(10000000)
+get_ipython().magic(u'paste')
+@Memoize
+@timed_func
+def sum2x(n):
+    return sum(2 * i for i in xrange(n))
+sum2x(1000000)
+sum2x(1000000)
+get_ipython().magic(u'run context_managers.py')
+with Context(False):
+    print something
+    
+with Context(False):
+    print "something"
+    
+get_ipython().magic(u'paste')
+with Context(True) as foo:
+    print 'This is in the context'
+    raise RuntimeError('this is the error message')
+with Context(False):
+    raise RuntimeError('this is the error message')
+
+with context(False):
+    raise RuntimeError('this is the error message')
+
+with context(True):
+    raise RuntimeError('this is the error message')
+
+get_ipython().magic(u'run timer_context.py')
+with Timer as t:
+    [x^2 for x in range(100000000)]
+    
+get_ipython().magic(u'run timer_context.py')
+with Timer as t:
+    [x^2 for x in range(100000000)]
+    
+with Timer as t:
+    [x^2 for x in range(100000000)]
+    
+get_ipython().magic(u'run timer_context.py')
+with Timer as t:
+    [x^2 for x in range(100000000)]
+    
+with Timer() as t:
+    [x^2 for x in range(100000000)]
+    
+with Timer() as t:
+    [x^2 for x in range(1000000)]
+    
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(1000000)]
+    
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(1000000)]
+    
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(1000000)]
+    
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    
+t
+t.elapsed
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+get_ipython().magic(u'pinfo isinstance')
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+get_ipython().magic(u'run timer_context.py')
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+print "after Exception"
+
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise RuntimeError("this is an error")
+    print "after Exception"
+
+with Timer() as t:
+    [x^2 for x in range(10000000)]
+    raise ValueError("this is an error")
+    print "after Exception"
+

slides_sources/source/session09.rst

@@ -1251,7 +1251,7 @@ Next Week
 
 We'll be talking about Unicode. Read:
 
-rst-class:: medium centered
+.. rst-class:: medium centered
 
   The Absolute Minimum Every Software Developer Absolutely, Positively
   Must Know About Unicode and Character Sets (No Excuses!)