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How to override the copy/deepcopy operations for a Python object?
...lex Martelli's answer and Rob Young's comment you get the following code:
from copy import copy, deepcopy
class A(object):
def __init__(self):
print 'init'
self.v = 10
self.z = [2,3,4]
def __copy__(self):
cls = self.__class__
result = cls.__new__(cl...
Does JSON syntax allow duplicate keys in an object?
...
From the standard (p. ii):
It is expected that other standards will refer to this one, strictly adhering to the JSON text format, while
imposing restrictions on various encoding details. Such standards may require spec...
How can you set class attributes from variable arguments (kwargs) in python
... self.B = True
# get a list of all predefined values directly from __dict__
allowed_keys = list(self.__dict__.keys())
# Update __dict__ but only for keys that have been predefined
# (silently ignore others)
self.__dict__.update((key, value) for key, val...
MVC Razor dynamic model, 'object' does not contain definition for 'PropertyName'
...ving internal properties
It is perfectly possible to pass anonymous types from a view to a partial view
I encountered the same problem today and it was nothing (directly) to do with the problem of passing anonymous types and their inherent internal properties.
As such, in relation to the OPs ques...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...k requests. You don't want just anyone being able to read your hard drive from your web browser. You can create a fully functioning web page using Notepad++ that will run Javascript, and frameworks like jQuery and angularJs; and test everything just by using the Notepad++ menu item, RUN, LAUNCH IN...
Which is better, return value or out parameter?
If we want to get a value from a method, we can use either return value, like this:
17 Answers
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Grouping functions (tapply, by, aggregate) and the *apply family
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@grautur I was actively pruning things from this answer to avoid it being (a) too long and (b) a re-write of the documentation. I decided that while aggregate, by, etc. are based on *apply functions, the way you approach using them is different enough from a users...
Argparse optional positional arguments?
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@ant From the above, you can see that dir is optional (that it appears in square brackets in argparse output indicates this).
– Vinay Sajip
Sep 15 '14 at 22:00
...
How to remove remote origin from Git repo
... This is the actual answer to the question "how to remove remote origin from git repo".
– baash05
Sep 10 '14 at 12:32
...
Redirect to an external URL from controller action in Spring MVC
...
You can use the RedirectView. Copied from the JavaDoc:
View that redirects to an absolute, context relative, or current request relative URL
Example:
@RequestMapping("/to-be-redirected")
public RedirectView localRedirect() {
RedirectView redirectView ...