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2011 August

• 💬 Reply to 'I'll be your python slave. Looking a py project to work at to become better.' on /r/Python:

  Earlier today i was thinking of writing a python script to detect duplicate mp3s, you might want to try that. There are existing programs to do it, but they all seem terrible!

  Sat, Aug. 27, 2011, 8 a.m. / Roy Tang / notes / #python #replies / Syndicated: reddit

2010 October

• How to invoke a function on an object dynamically by name?

  In Python, say I have a string that contains the name of a class function that I know a particular object will have, how can I invoke it?

  That is:

  obj = MyClass() # this class has a method doStuff()
  func = "doStuff"
  # how to call obj.doStuff() using the func variable?
  

  Sun, Oct. 17, 2010, 11:01 a.m. / Roy Tang / notes / #python #questions #stackoverflow #software-development / Syndicated: stackexchange / 💬 4
• 💬 Reply to 'Python execution speed: laptop vs desktop' on stackoverflow:

  Split your processing into multiple threads. Your particular i7 should be able to support up to 8 threads in parallel.

  Fri, Oct. 15, 2010, 2:27 p.m. / Roy Tang / notes / #python #performance #intel #replies #max / Syndicated: stackexchange

2010 June

• jquery-like HTML parsing in Python?

  Is there any Python library that allows me to parse an HTML document similar to what jQuery does?

  i.e. I'd like to be able to use CSS selector syntax to grab an arbitrary set of nodes from the document, read their content/attributes, etc.

  The only Python HTML parsing lib I've used before was BeautifulSoup, and even though it's fine I keep thinking it would be faster to do my parsing if I had jQuery syntax available. :D

  Wed, June 16, 2010, 3:12 p.m. / Roy Tang / notes / #jquery #python #questions #stackoverflow #software-development / Syndicated: stackexchange / 💬 3

2010 January

• 💬 Reply to 'ValueError in Django' on stackoverflow:

  urlpatterns = patterns('',
  (r'^salaries/employee/$', list_detail.object_list, 'employee_info'), )

  The third item in the tuple needs to be a dictionary, not a string. Try removing the single quotes around employee_info:

  urlpatterns = patterns('',     
      (r'^salaries/employee/$', list_detail.object_list, employee_info),
  )
  

  Sat, Jan. 9, 2010, 12:47 p.m. / Roy Tang / notes / #python #django #replies #wally / Syndicated: stackexchange

2009 December

• 💬 Reply to 'How to create a .py file for Google App Engine?' on stackoverflow:

  You will need a better editor than Notepad. With Notepad, use Save As..., and type "helloworld.py" in the dialog, including quotes so that the file extension is .py instead of .txt

  Tue, Dec. 8, 2009, 6:52 p.m. / Roy Tang / notes / #python #google-app-engine #file #makefile #replies #brilliant / Syndicated: stackexchange
• 💬 Reply to 'Is there a tuple data structure in Python' on stackoverflow:

  You can have an array of 3-item tuples.

  arr = [ (1,2,3), (4,5,6), (7,8,9)]
  for (k, v, x) in arr:
    # do stuff
  

  Wed, Dec. 2, 2009, 3:37 p.m. / Roy Tang / notes / #python #tuples #replies #priyank-bolia / Syndicated: stackexchange