The Big Programming Thread - Page 699

	def test_home_page_returns_correct_html(self):
		request = HttpRequest()
		request.method = 'POST'
		request.POST['item_text'] = 'A new list item'
		
		response = home_page(request)
		
		self.assertIn('A new list item', response.content.decode())
		expected_html = render_to_string(
			'home.html',
			{'new_item_text': 'A new list item'}
		)
		print(expected_html)
		print(response.content.decode())
		self.assertEqual(response.content.decode(), expected_html)

class C:
   def meth(self, arg):
      self.val = arg
      return self.val

# Define an empty class:
class C:
   pass

# Define a global function:
def meth(myself, arg):
   myself.val = arg
   return myself.val

# Poke the method into the class:
C.meth = meth

# Decorator that prints all arguments passed to the wrapped function
def printer(f):
  def wrapper(*args, **kwargs):
    print(args, kwargs)
    return f(*args, **kwargs)
  return wrapper


class A:
  @printer
  def method(self, x):
    self.y = x

@printer
def function(x, y):
  return x + y

>>> a = A()
>>> a.method(1)
(<__main__.A object at 0x769d3dd0>, 1) {}
>>> function(1, 2)
(1, 2) {}
3

var self = this;

On January 07 2016 04:07 darkness wrote:
Has anyone used matlab? I'm currently translating some code from matlab and I find it very hard to understand what is what because data types aren't declared. That, and the language is new to me. I'm used to C style syntax. Any advice?

A couple pointers:
- matrices are (row, column), there is no 0 index
- Try to make the most use of the indexing A(:,:) (all rows and columns of A), or A(2:end, 3:end-1), ect.
- Try to replace loops with indexing, much faster and easier, loops should be the last option imo, built in functions or index are the way to go
- You can concatenate matrices B = [A(:,[1,2]), C(:,:)], (assuming similar dimensions of A and C)
     - concatenate by row B = [A([1,2],:) ; C]
- "push-back": a = [a, b]
- make use of google to find out functions, there are a ton of them