Diez B. Roggisch wrote:
John wrote:
I'm okay with init, but it seems to me that enter is redundant since it
appears that anything you want to execute in enter can be done in init.
About what are you talking?
Diez
Presumably, the 'with' statement. http://www.python.org/dev/peps/pep-0343/
*__enter__*(self)
Enter the runtime context related to this object. The *with*
<http://effbot.org/pyref/with.htm> statement will bind this method's
return value to the target(s) specified in the *as*
<http://effbot.org/pyref/as.htm> clause of the statement, if any.
Unlike __init__, __enter__ can return a value, which is assigned to the
variable (or tuple) following the 'as' keyword:
with EXPR as VAR:
BLOCK
Also, the object used in a with statement can be constructed prior to
the with statement. The __init__ method is called when the object is
initialized, but the __enter__ method is called when the context is
entered (i.e. when the 'with' statement is invoked).
Ken
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