# Differences

This shows you the differences between two versions of the page.

python:pycon2013 [2013/03/16 23:49]
dblume
python:pycon2013 [2013/03/17 21:36] (current)
dblume
Line 2: Line 2:

@pydanny: #pycon pro-tip: Show up to @raymondh or @jacobian or @roguelynn's talks early! @pydanny: #pycon pro-tip: Show up to @raymondh or @jacobian or @roguelynn's talks early!
+
+**Speaker Decks**: [[https://speakerdeck.com/pyconslides|PyCon Slides]]
+
+===== Books for Kids =====
+
+  * [[http://www.amazon.com/Python-Kids-Playful-Introduction-Programming/dp/1593274076/|Python for Kids]]
+  * [[http://www.amazon.com/Hello-World-Computer-Programming-Beginners/dp/1933988495/|Hello World! Computer Programming for Kids and Other Beginners]]
+
+===== swiftstack Challenge =====
+
+> Given an ASCII string X, take the len(X) most significant bits of the md5 hash digest of that string. Treat those bits as an unsigned int, and append its base16 representation to "http://swiftstack.com/". Do it for "pycon2013."
+
+Hmm, something like this works:
+
+<code>
+>>> s = "pycon2013"
+>>> hex( int( bin( int( hashlib.md5( s ).hexdigest(), 16 ) )[2:len(s)+2], 2 ) )[2:]
+</code>
+
+===== TODO: contextual.io Challenge  =====
+
+[[http://www.contextual.io/pycon2013/122111021012022020120210111]]
+
+
+References:
+  * http://wordaligned.org/articles/steganography
+  * https://github.com/psibi/Rizzy/blob/master/stepic.py
+

===== Disney - Optimizing ===== ===== Disney - Optimizing =====
Line 7: Line 35:
[[http://davidschachter.com/|David Schachter]] presented a talk on program optimization. [[http://davidschachter.com/|David Schachter]] presented a talk on program optimization.
[[http://davidschachter.com/ds/PyCon_slides_public.pdf|His slides]] are available, too. [[http://davidschachter.com/ds/PyCon_slides_public.pdf|His slides]] are available, too.
+
+There's an interesting slide where he forces a miss on the L1 cache to unblock threads when he's filling up an array, by not accessing sequential addresses.
+
+<code>
+x[1] = ...
+x[5] = ...
+x[10] = ...
+x[2] = ...
+x[6] = ...
+x[11] = ...
+...
+</code>

===== New Relic - Managing Python App Performance ===== ===== New Relic - Managing Python App Performance =====
Line 32: Line 72:

-2. Discovery +2.  [[http://goo.gl/cyY1U|Google Developers: Discovery API]]
- +===== Lightning Talks =====
-[[http://goo.gl/cyY1U]] +
- +
-====== Lightning Talks ======+

**PyCharm** **PyCharm**
Line 111: Line 148:

Check out itty Check out itty
+<code>
from itty import get, post, run_itty from itty import get, post, run_itty

Line 116: Line 154:
def xxx(): def xxx():
xxxxx     xxxxx
+</code>

+<code>
with ignore(OSError): with ignore(OSError):
os.remove(someFile)     os.remove(someFile)
+</code>
+
+===== Keynote 1 =====
+
+Over 2500 attendees
+PyCon is more than 20% Women
+Python got to keep the name in the EU.
+
+[[http://preview.python.org/|Preview of the new python.org]]
+
+===== Guido's Keynote =====
+
+Async IO.  Issue came up in PythonIdeas mail list.
+
+People often solve this problem with threads.
+
+===== Raspberry Pi Quick Notes =====
+
+<code>
+User: pi