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How to combine two or more querysets in a Django view?
...sets into a list is the simplest approach. If the database will be hit for all querysets anyway (e.g. because the result needs to be sorted), this won't add further cost.
from itertools import chain
result_list = list(chain(page_list, article_list, post_list))
Using itertools.chain is faster than...
Class with Object as a parameter
... Table to be a new-style class (as opposed to "classic" class).
In Python3 all classes are new-style classes, so this is no longer necessary.
New style classes have a few special attributes that classic classes lack.
class Classic: pass
class NewStyle(object): pass
print(dir(Classic))
# ['__doc__...
Amazon products API - Looking for basic overview and information
...etplace Web Service (MWS) should now be used: developer.amazonservices.com/index.html
– Dan Gravell
Apr 27 '12 at 11:06
5
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Using Version Control for Home Development?
...g you need to know to get started:
http://svnbook.red-bean.com/nightly/en/index.html
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In Android EditText, how to force writing uppercase?
...
This caused and index out of bounds exception when every I typed.
– Zapnologica
Nov 24 '16 at 11:03
2
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What does functools.wraps do?
... def with_logging(*args, **kwargs):
print(func.__name__ + " was called")
return func(*args, **kwargs)
return with_logging
then when you say
@logged
def f(x):
"""does some math"""
return x + x * x
it's exactly the same as saying
def f(x):
"""does some math"""
...
What does it mean to hydrate an object?
... you probably don't need to deal with hydration explicitly. You would typically use deserialization instead so you can write less code. Some data access APIs don't give you this option, and in those cases you'd also have to explicitly call the hydration step yourself.
For a bit more detail on the c...
How to get instance variables in Python?
Is there a built-in method in Python to get an array of all a class' instance variables? For example, if I have this code:
...
Get selected text from a drop-down list (select box) using jQuery
...s like whether you put an ID on your control, and if not then based on the index of where they occur in the current level of the tree, etc)
– freefaller
Mar 9 '17 at 14:03
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Using gradle to find dependency tree
...eport
Report can normally be found in build/reports/project/dependencies/index.html
It looks like this:
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