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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

Chapter 1. python 2.0 - 1.55.0 - 0 views

www.boost.org/...index.html

python embedding Boost

shared by Benjamin Bandt-Horn on 14 Jan 14 - No Cached
  • The Boost Python Library is a framework for interfacing Python and C++. It allows you to quickly and seamlessly expose C++ classes functions and objects to Python, and vice-versa, using no special tools -- just your C++ compiler. It is designed to wrap C++ interfaces non-intrusively, so that you should not have to change the C++ code at all in order to wrap it, making Boost.Python ideal for exposing 3rd-party libraries to Python. The library's use of advanced metaprogramming techniques simplifies its syntax for users, so that wrapping code takes on the look of a kind of declarative interface definition language (IDL).
  • Benjamin Bandt-Horn on 14 Jan 14
     
    The Boost Python Library is a framework for interfacing Python and C++. It allows you to quickly and seamlessly expose C++ classes functions and objects to Python, and vice-versa, using no special tools -- just your C++ compiler. It is designed to wrap C++ interfaces non-intrusively, so that you should not have to change the C++ code at all in order to wrap it, making Boost.Python ideal for exposing 3rd-party libraries to Python. The library's use of advanced metaprogramming techniques simplifies its syntax for users, so that wrapping code takes on the look of a kind of declarative interface definition language (IDL).
Benjamin Bandt-Horn

Ternary conditional operator in Python - Stack Overflow - 0 views

stackoverflow.com/...conditional-operator-in-python

ternary conditional operator python

shared by Benjamin Bandt-Horn on 15 Dec 13 - No Cached
  • Benjamin Bandt-Horn on 15 Dec 13
     
    Yes, it was added in version 2.5. It's frowned upon by some pythonistas, so keep that in mind. The syntax is: a if test else b First test is evaluated, then either a or b is returned based on the Boolean value of test; if test evaluates to True a is returned, else b is returned. For example: >>> 'true' if True else 'false' 'true' >>> 'true' if False else 'false' 'false'
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