Re: [Zope-CMF] Implicit and Acquirer
George Lee wrote at 2006-3-12 00:05 -0500: ... Other than understanding how Python wraps C classes -- is there anyway of seeing where the classes are defined, understanding the methods + method definitions, in a Python-looking way? The DocFinder (or DocFinderTab) shows you the modules classes are defined in. If they are defined in Python, you can directly switch to the code. This does not work for C implemented classes. -- Dieter ___ Zope-CMF maillist - Zope-CMF@lists.zope.org http://mail.zope.org/mailman/listinfo/zope-cmf See http://collector.zope.org/CMF for bug reports and feature requests
Re: [Zope-CMF] Implicit and Acquirer
George Lee wrote at 2006-3-11 00:41 -0500: ... What is the difference between Implicit and Acquirer? Between Explicit and Acquirer? An acquirer is an object with two components aq_self and aq_parent. If asked for an attribute, any acquirer passes the request on to aq_self and returns the result if aq_self can deliver the attribute. The difference between an ImplicitAcquirer and an ExplicitAcquirer comes only into play when aq_self cannot deliver the asked for attribute. In this case, an ImplicitAcquirer automatically passed the request on aq_parent while an ExplicitAcquirer fails (with an AttributeError). Including, what methods do Implicit and Explicit *add* or *override*? Both have the same methods (and attribute). For instance, does Explicit add an aq_acquire method? No. But aq_acquire is more important for an ExplicitAcquirer than for an ImplicitAcquirer: aq_acquire supports precise control over the lookup behaviour of all kinds of acquirers. With an ExplicitAcquirer, you (usually) must use aq_acquire to look the attribute up in aq_parent; an ImplicitAcquirer would do this automatically (if necessary). What else? Nothing. I tried sifting through the C code and the epydoc files but still couldn't make sense of it all -- it seems that Implicit and Acquirer are really the same, for instance. Answers or references would be very appreciated, thanks. Apparently, you have a reason to use the strange Implicit and Acquirer... In fact, there are two kinds of Acquirers: ImplicitAcquirer and ExplicitAcquirer. There is nothing like Implicit and Acquirer. -- Dieter ___ Zope-CMF maillist - Zope-CMF@lists.zope.org http://mail.zope.org/mailman/listinfo/zope-cmf See http://collector.zope.org/CMF for bug reports and feature requests
Re: [Zope-CMF] Implicit and Acquirer
Thanks much. It was confusing because the code says certain classes inherit Implicit, but epydoc shows the class Acquirer. Other than understanding how Python wraps C classes -- is there anyway of seeing where the classes are defined, understanding the methods + method definitions, in a Python-looking way? Peace, George On 3/11/06, Dieter Maurer [EMAIL PROTECTED] wrote: George Lee wrote at 2006-3-11 00:41 -0500: ... What is the difference between Implicit and Acquirer? Between Explicit and Acquirer? An acquirer is an object with two components aq_self and aq_parent. If asked for an attribute, any acquirer passes the request on to aq_self and returns the result if aq_self can deliver the attribute. The difference between an ImplicitAcquirer and an ExplicitAcquirer comes only into play when aq_self cannot deliver the asked for attribute. In this case, an ImplicitAcquirer automatically passed the request on aq_parent while an ExplicitAcquirer fails (with an AttributeError). Including, what methods do Implicit and Explicit *add* or *override*? Both have the same methods (and attribute). For instance, does Explicit add an aq_acquire method? No. But aq_acquire is more important for an ExplicitAcquirer than for an ImplicitAcquirer: aq_acquire supports precise control over the lookup behaviour of all kinds of acquirers. With an ExplicitAcquirer, you (usually) must use aq_acquire to look the attribute up in aq_parent; an ImplicitAcquirer would do this automatically (if necessary). What else? Nothing. I tried sifting through the C code and the epydoc files but still couldn't make sense of it all -- it seems that Implicit and Acquirer are really the same, for instance. Answers or references would be very appreciated, thanks. Apparently, you have a reason to use the strange Implicit and Acquirer... In fact, there are two kinds of Acquirers: ImplicitAcquirer and ExplicitAcquirer. There is nothing like Implicit and Acquirer. -- Dieter ___ Zope-CMF maillist - Zope-CMF@lists.zope.org http://mail.zope.org/mailman/listinfo/zope-cmf See http://collector.zope.org/CMF for bug reports and feature requests
[Zope-CMF] Implicit and Acquirer
Hi, What is the difference between Implicit and Acquirer? Between Explicit and Acquirer? Including, what methods do Implicit and Explicit *add* or *override*? For instance, does Explicit add an aq_acquire method? What else? I tried sifting through the C code and the epydoc files but still couldn't make sense of it all -- it seems that Implicit and Acquirer are really the same, for instance. Answers or references would be very appreciated, thanks. Peace, George ___ Zope-CMF maillist - Zope-CMF@lists.zope.org http://mail.zope.org/mailman/listinfo/zope-cmf See http://collector.zope.org/CMF for bug reports and feature requests
