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How to prevent blank xmlns attributes in output from .NET's XmlDocument?
When generating XML from XmlDocument in .NET, a blank xmlns attribute appears the first time an element without an associated namespace is inserted; how can this be prevented?
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How can a Java variable be different from itself?
...m.out.println("Not ok");
}
Not ok
You can do the same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in accordance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but th...
Project structure for Google App Engine
...ion.
Here I'll post a slightly modified version of the layout/structure from that page. I pretty much follow this pattern myself. You also mentioned you had trouble with packages. Just make sure each of your sub folders has an __init__.py file. It's ok if its empty.
Boilerplate files
These har...
Is there a better way to iterate over two lists, getting one element from each list for each iterati
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in case your Latitude and Longitude lists are large and lazily loaded:
from itertools import izip
for lat, lon in izip(latitudes, longitudes):
process(lat, lon)
or if you want to avoid the for-loop
from itertools import izip, imap
out = imap(process, izip(latitudes, longitudes))
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Remove a fixed prefix/suffix from a string in Bash
... I have a string and its prefix/suffix. I need to remove the prefix/suffix from the original string.
9 Answers
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Asynchronous method call in Python?
...nchronously with:
apply_async(func[, args[, kwds[, callback]]])
E.g.:
from multiprocessing import Pool
def f(x):
return x*x
if __name__ == '__main__':
pool = Pool(processes=1) # Start a worker processes.
result = pool.apply_async(f, [10], callback) # Evaluate "f(10)" ...
Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
I am sending email from my Rails application. It works well on development environment, but fails on staging. I get the following error:
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Python - Get path of root project structure
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You can do this how Django does it: define a variable to the Project Root from a file that is in the top-level of the project. For example, if this is what your project structure looks like:
project/
configuration.conf
definitions.py
main.py
utils.py
In definitions.py you can def...
How are msys, msys2, and msysgit related to each other?
... software - the stated goal of MSYS - we ported the Pacman package manager from Arch Linux. Pacman is more than just about managing binary packages (though it does that very well). It has a software building infrastructure called makepkg that allows the creation of recipes (PKGBUILD and patch files)...
How to move a model between two Django apps (Django 1.7)
...s below this post refer to my old answer.
First migration to remove model from 1st app.
$ python manage.py makemigrations old_app --empty
Edit migration file to include these operations.
class Migration(migrations.Migration):
database_operations = [migrations.AlterModelTable('TheModel', 'n...