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Using global variables in a function
... each function that assigns a value to it:
globvar = 0
def set_globvar_to_one():
global globvar # Needed to modify global copy of globvar
globvar = 1
def print_globvar():
print(globvar) # No need for global declaration to read value of globvar
set_globvar_to_one()
print_globvar...
setuptools vs. distutils: why is distutils still a thing?
... imported in your code to locate data files installed with a distribution. One of its gotchas is that it monkey-patches the distutils Python package. It should work well with pip. The latest version was released in July 2013.
So, as you can see setuptools should be preferred to distutils, and I se...
Volatile vs Static in Java
Is it correct to say that static means one copy of the value for all objects and volatile means one copy of the value for all threads?
...
How to dynamically compose an OR query filter in Django?
...into list of Q objects
queries = [Q(pk=value) for value in values]
# Take one Q object from the list
query = queries.pop()
# Or the Q object with the ones remaining in the list
for item in queries:
query |= item
# Query the model
Article.objects.filter(query)
...
Why XML-Serializable class need a parameterless constructor
...
The accessibility tip is a good one, but your explanation makes no sense for serialization. An object needs to be created only for de-serialization. I'd hazard a guess that the type-check code is built into the XmlSerializer constructor because a single in...
Making the Android emulator run faster
...is a bit sluggish. For some devices, like the Motorola Droid and the Nexus One, the app runs faster in the actual device than the emulator. This is a problem when testing games and visual effects.
...
Pass Method as Parameter using C#
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It's very userfully. With this way, can use one or many parameters. I guess, the most updated answer is this.
– bafsar
Jan 23 '15 at 16:53
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NOT using repository pattern, use the ORM as is (EF)
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I've gone down many paths and created many implementations of repositories on different projects and... I've thrown the towel in and given up on it, here's why.
Coding for the exception
Do you code for the 1% chance your databas...
How to change Rails 3 server default port in develoment?
...le - you are monkey-patching the server runner - so it will influence just one project.
UPDATE: Yes, I know that the there is simpler solution with bash script containing:
#!/bin/bash
rails server -p 10524
but this solution has a serious drawback - it is boring as hell.
...
Alternative to itoa() for converting integer to string C++? [duplicate]
....
Despite the fact some functions are not in the standard, as rightly mentioned by "onebyone" in one of his comments, most compiler will offer you an alternative (e.g. Visual C++ has its own _snprintf you can typedef to snprintf if you need it).
The C++ way.
Use the C++ streams (in the current case ...