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Benjamin Bandt-Horn

4. More Control Flow Tools - Python v2.7.6 documentation - 0 views

docs.python.org/...controlflow.html

python flow control documentation kwargs args

shared by Benjamin Bandt-Horn on 20 Dec 13 - No Cached
  • *name must occur before **name.
  • keys = sorted(keywords.keys()) for kw in keys: print kw, ":", keywords[kw]
  • Note that the list of keyword argument names is created by sorting the result of the keywords dictionary’s keys() method before printing its contents; if this is not done, the order in which the arguments are printed is undefined
  • ...11 more annotations...
  • They are syntactically restricted to a single expression
  • Like nested function definitions, lambda functions can reference variables from the containing scope
  • Coding Style
  • CamelCase for classes
  • lower_case_with_underscores for functions and methods
  • Always use self as the name for the first method argument
  • comments
  • docstrings
  • separate
  • 79 characters
  • 4-space indentation, and no tabs
  • Benjamin Bandt-Horn on 20 Dec 13
     
    keys = sorted(keywords.keys()) for kw in keys: print kw, ":", keywords[kw]
Benjamin Bandt-Horn

operators - What is the name of ** in python? - Programmers Stack Exchange - 0 views

programmers.stackexchange.com/...what-is-the-name-of-in-python

args kwargs python keyword argument unpacking syntax

shared by Benjamin Bandt-Horn on 20 Dec 13 - No Cached
  • It's not an operator as such, so it doesn't really have a name, but it is defined as a "syntactic rule". So it should be called: "the keyword argument unpacking syntax"
  • # usually a tuple, always an iterable*
  • # usually a dict, always a mapping*
  • ...4 more annotations...
  • kwargs
  • args =
  • *: Iterables are objects that implement the __iter__() method and mappings are objects that implement __iter__() and __getitem__()
  • If you are unsure what to call a particular operator or if it is unnamed, you can always resort to Waka Waka Bang Splat as a reference to help you figure out what to call it. In this case for ** I would call it double-splat, though there are some alternate names for symbols.
  • Benjamin Bandt-Horn on 20 Dec 13
     
    It's not an operator as such, so it doesn't really have a name, but it is defined as a "syntactic rule". So it should be called: "the keyword argument unpacking syntax"
Benjamin Bandt-Horn

Function overloading in Python: Missing - Stack Overflow - 0 views

stackoverflow.com/...-overloading-in-python-missing

function overloading python

shared by Benjamin Bandt-Horn on 29 Dec 13 - No Cached
  • keyword arguments with default values can go a long way.
  • In Python, I think it's more accepted to use duck typing -- asking what an object can do, rather than what it is
  • it goes against the spirit of Python to worry a lot about what types are passed into methods
  • Benjamin Bandt-Horn on 29 Dec 13
     
    keyword arguments with default values can go a long way.
Benjamin Bandt-Horn

Binary Search Tree library in Python | Laurent Luce's Blog - 0 views

www.laurentluce.com/...-search-tree-library-in-python

binary tree python

shared by Benjamin Bandt-Horn on 27 Dec 13 - No Cached
  • This article is about a Python library I created to manage binary search trees. I will go over the following: Node class Insert method Lookup method Delete method Print method Comparing 2 trees Generator returning the tree elements one by one
  • https://laurentluce@github.com/laurentluce/python-algorithms.git
  • binary search tree
  • ...5 more annotations...
  • Delete method
  • There are 3 possibilities to handle: 1- The node to remove has no child. 2- The node to remove has 1 child. 3- The node to remove has 2 children.
  • look for its successor by going right then left until we reach a leaf
  • if node is None:
  • ‘A’ < ‘B’ is True in Python.
  • Benjamin Bandt-Horn on 27 Dec 13
     
    This article is about a Python library I created to manage binary search trees. I will go over the following: Node class Insert method Lookup method Delete method Print method Comparing 2 trees Generator returning the tree elements one by one
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