Popular recipes tagged "default_arguments"http://code.activestate.com/recipes/tags/default_arguments/2011-08-12T23:08:30-07:00ActiveState Code RecipesSmarter Default Arguments (Python)
2011-08-12T23:06:57-07:00Eric Snowhttp://code.activestate.com/recipes/users/4177816/http://code.activestate.com/recipes/577786-smarter-default-arguments/
<p style="color: grey">
Python
recipe 577786
by <a href="/recipes/users/4177816/">Eric Snow</a>
(<a href="/recipes/tags/default_arguments/">default_arguments</a>, <a href="/recipes/tags/deferred/">deferred</a>, <a href="/recipes/tags/function/">function</a>, <a href="/recipes/tags/functions/">functions</a>).
Revision 3.
</p>
<p>Improved handling of mutable and deferred default arguments. After the recipe you'll find an explanation of what that means.</p>
<p>Works for 2.7 with minor tweaks (getfullargspec --> getargspec).</p>
An Introduction to Deferred Default Arguments (Python)
2011-08-12T23:08:30-07:00Eric Snowhttp://code.activestate.com/recipes/users/4177816/http://code.activestate.com/recipes/577789-an-introduction-to-deferred-default-arguments/
<p style="color: grey">
Python
recipe 577789
by <a href="/recipes/users/4177816/">Eric Snow</a>
(<a href="/recipes/tags/default_arguments/">default_arguments</a>, <a href="/recipes/tags/deferred/">deferred</a>).
Revision 2.
</p>
<p>If you have a function that calls another, passing through an argument, you likely want the default argument of your function to match that of the called function.</p>
<p>Deferred default arguments is what I call the technique of using a sentinel for the default argument of your function and having the called function translate the sentinel into its own default argument.</p>
<p>You'll find a more thorough treatment after the recipe.</p>
Default arg special action (Python)
2010-04-14T19:52:33-07:00Ed Blakehttp://code.activestate.com/recipes/users/4173678/http://code.activestate.com/recipes/577194-default-arg-special-action/
<p style="color: grey">
Python
recipe 577194
by <a href="/recipes/users/4173678/">Ed Blake</a>
(<a href="/recipes/tags/default_arguments/">default_arguments</a>, <a href="/recipes/tags/identity/">identity</a>, <a href="/recipes/tags/oop/">oop</a>).
</p>
<p>A way to allow functions with 0, 1, and -1 arguments! For those times you want to differentiate a no value argument from a non-value argument.</p>