On 4/6/2015 12:42 PM, Dave Angel wrote:
On 04/06/2015 03:20 PM, Emile van Sebille wrote:
<snip>
Python 2.7.6 (default, Mar 22 2014, 22:59:56)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> d = {'a':'123'}
>>> def func(s=d['a']):
... print s
...
>>> func()
123
Only if you know that nobody is going to be changing d.
Clearly my example avoids the pitfalls of a changing d. :)
>>> d = {"a":"123"}
>>> def func(s=d["a"]):
... print s
...
>>> d["a"] = "new value"
>>> func()
123
Good point -- I forgot about setting default parameters at compile time.
>>> d={'a':'123'}
>>> def func(s=d):print s['a']
...
>>> func()
123
>>>
>>> d['a']='456'
>>> func()
456
>>>
_______________________________________________
Tutor maillist - [email protected]
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor
