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Iterate over model instance field names and values in template
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You can use Django's to-python queryset serializer.
Just put the following code in your view:
from django.core import serializers
data = serializers.serialize( "python", SomeModel.objects.all() )
And then in the template:
{% for instance in dat...
How do I set the value property in AngularJS' ng-options?
...easiest or beautiful syntax. This syntax is kind of an extended version of Python's list comprehensions and knowing that helps me to remember the syntax very easily. It's something like this:
Python code:
my_list = [x**2 for x in [1, 2, 3, 4, 5]]
> [1, 4, 9, 16, 25]
# Let people to be a list o...
How can I map True/False to 1/0 in a Pandas DataFrame?
I have a column in python pandas DataFrame that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that?
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Go Unpacking Array As Arguments
So in Python and Ruby there is the splat operator (*) for unpacking an array as arguments. In Javascript there is the .apply() function. Is there a way of unpacking an array/slice as function arguments in Go? Any resources for this would be great as well!
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Why does `True == False is False` evaluate to False? [duplicate]
...ntation:
5.9. Comparisons
Unlike C, all comparison operations in Python have the same priority, which is lower than that of any arithmetic, shifting or bitwise operation. Also unlike C, expressions like a < b < c have the interpretation that is conventional in mathematics:
comparis...
java.net.URLEncoder.encode(String) is deprecated, what should I use instead?
...thods. It would take the same amount of effort to type either. If you like Python, why are you programming in Java? Is it because more people use Java than Python and you got a Java job instead of Python job?
– stepanian
Feb 27 '12 at 9:07
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How does functools partial do what it does?
...or keyword argument 'a'
another use case: writing distributed code using python's multiprocessing library. A pool of processes is created using the Pool method:
>>> import multiprocessing as MP
>>> # create a process pool:
>>> ppool = MP.Pool()
Pool has a map method,...
what is reverse() in Django
...yers where URLs are needed: In templates: Using the url
template tag. In Python code: Using the reverse() function. In higher
level code related to handling of URLs of Django model instances: The
get_absolute_url() method.
Eg. in templates (url tag)
<a href="{% url 'news-year-archive' 20...
Why can't I call read() twice on an open file?
...olution for this exercise (code.google.com/intl/de-DE/edu/languages/google-python-class/…). But somehow I didn't thought of storing the string in a variable. D'oh!
– helpermethod
Oct 11 '10 at 17:33
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Numpy: Divide each row by a vector element
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Pythonic way to do this is ...
np.divide(data.T,vector).T
This takes care of reshaping and also the results are in floating point format.
In other answers results are in rounded integer format.
#NOTE: No of columns in bot...