python - How can i change the __cmp__ function of an instance (not in class)? -


How can I change the __cmp__ function of an example (not in the class)?

Ex: 

  class foo: def __init __ (self, num): self.num = num def cmp (self, others): return self.num - other Class work foo in the .num # class __cmp__ function as the example __cmp__ = cmp a = foo (1) b = foo (1) # Return correct == b # Change __cmp__ function def cmp2 (self, other) Works: Return 1a__ cmp__ = cmp2 b. __cmp__ = cmp2 # Error picking a == b # Taxback (most recent call final): # file "", line 1, & lt; Module & gt; #TypeError: cmp2 () takes exactly 2 arguments (1 given)

no Do this

This will make your code smaller and difficult to maintain. The reason for this is difficult because correct is a sub-code to do this foo : 

  class FunkyCmpFoo (foo): def __cmp__ (manually , Other): Return -1

& amp; C., & Amp; C. In this way, you know that all foo compare equally, and compare all funkikkampu s similarly. If you do not, then you will eventually compare a modified foo with an original foo , and you will be punished for raising yourself deeply.

I'm not sure that I should say this, but, by making my own: 

  funcType = type (foo.cd_c__) # Optionally: import New cmp2 = new.instancemethod (fenc, a, foo) a .__ cmp__ = funcType (cmp2, ​​a, foo) b .__ cmp__ = funcType (cmp2, ​​b, foo)

I can think of a good reason, and this is that if your arcanemy has to debug the code. In fact, I can think of some very interesting things in mind (you can think of sys at least all numbers too .maxint Like how to compare?). Besides, this is a nightmare.


-

Comments

Post a Comment

Popular posts from this blog

Eclipse CDT variable colors in editor -

I hope this is a good question to ask here. This programming is related, so I thought it would be better than the superuser, so I am using the CDT C ++ Eclipse plugin. I know how the editor changes colors for some things But is there a way to do that all the variables are different colors? For example in KDEValue, it sets the local variables and square variables in different colors and bold square squares. Can I copy it to CDT? Eclips provides some level of color customization for text editor syntax You can see it on the following: There are many elements, including the Window> Preferences> C / C ++> Editor> Syntax color code that can be changed, assembly, Comments, Preprocessor and Doxian Under the code, it is possible to change the color of some variable types, such as global variables, local variable announcements, local variable references, and parameter variables. But I do not think the code is capable of changing the color of each variable declared....
Read more

AJAX doesn't send POST query -

$ (दस्तावेज़) .ready (function () {function ajaxselectrss (rssurlvar) {var ajaxRequest; // वेरिएबल जो अजाक्स को संभव बनाता है! कोशिश करें कि {// ओपेरा 8.0+, फ़ायरफ़ॉक्स, सफारी अजाक्स अनुरोध} = नया एक्सएमएलएचटीपीआरइवेस्ट ();} कैच (ई) {// इंटरनेट एक्सप्लोरर ब्राउज़र्स {ajaxRequest = new ActiveXObject ("Msxml2.XMLHTTP");} पकड़ो (ई) {try {ajaxRequest = new ActiveXObject ("Microsoft.XMLHTTP");} कैच (ई) {// कुछ गलत चेतावनी ("आपका ब्राउज़र तोड़ दिया!"); वापसी झूठी;}}} // एक बनाएं फ़ंक्शन जो सर्वर से भेजे गए डेटा प्राप्त करेंगे ajaxRequest.onreadystatechange = function () {if (ajaxRequest.readyState == 4) {var ajaxDisplay = document.getElementById ('news'); ajaxDisplay.innerHTML = ajaxRequest.responseText;}} / / Var rssurlvar = $ (this) .attr ("title"); var queryString = "rurl =" + rssurlvar; var urltofile = "rssget.php"; ajaxRequest.open ("पोस्ट", urltofile, सच); ajaxRequ Est.setRequestHeader ("सामग्री-प्र...
Read more

wpf - Custom Message Box Advice -

Well, I'm using a custom window box that comes with some custom control boxes that accompany the text The producers who are displayed are called. I have a defined event, which has been subscribed through the original class, it gets burnt when clicking on the button. However, I can not see how to use it effectively, I would like to return one yes, whether yes or not, but obviously my code will continue to execute, so this Below is some example code to clarify the problem that the method has subscibed by clicking on the button. Message box window Public partial class custom message box: window {public representative message messagebox object sender, event events e); Public event messagebox handler messagebox document; Public Customs Box () {Initial group (); } Public Customsbox (String Message) {InitializeComponent (); This.txtdescription.Text = Message; } Public Customsbox (String Message, String Title, String First BTNtext) {Initialization (); This.lbltitle.Content =...
Read more