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In a django model custom save() method, how should you identify a new object?
...ble, but named that way to avoid conflicts, checking self._state.adding is now the preferable way to check.
self.pk is None:
returns True within a new Model object, unless the object has a UUIDField as its primary_key.
The corner case you might have to worry about is whether there are uniquene...
Multiprocessing vs Threading Python [duplicate]
...ing to understand the advantages of multiprocessing over threading . I know that multiprocessing gets around the Global Interpreter Lock, but what other advantages are there, and can threading not do the same thing?
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MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
Now mongo also should do fine.
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Efficient evaluation of a function at every cell of a NumPy array
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@Peter: Ah, now I see that you have mentioned assigning the result back to the former array in your original question. I'm sorry I missed that when first reading it. Yeah, in that case the double loop must be faster. But have you also tr...
How to avoid circular imports in Python? [duplicate]
I know the issue of circular imports in python has come up many times before and I have read these discussions. The comment that is made repeatedly in these discussions is that a circular import is a sign of a bad design and the code should be reorganised to avoid the circular import.
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What are the correct version numbers for C#?
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C# language version history:
These are the versions of C# known about at the time of this writing:
C# 1.0 released with .NET 1.0 and VS2002 (January 2002)
C# 1.2 (bizarrely enough); released with .NET 1.1 and VS2003 (April 2003). First version to call Dispose on IEnumerators which ...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
...e been using that "less efficient" method without realizing it for a while now.
– J Bryan Price
Jan 14 '13 at 22:20
5
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How to capture stdout output from a Python function call?
...sage:
with Capturing() as output:
do_something(my_object)
output is now a list containing the lines printed by the function call.
Advanced usage:
What may not be obvious is that this can be done more than once and the results concatenated:
with Capturing() as output:
print('hello world...
Google Chrome Extensions - Can't load local images with CSS
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@ariera's link is here now: developer.chrome.com/extensions/manifest/…
– Ben
Jan 11 '17 at 15:08
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Specify JDK for Maven to use
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Seems that maven now gives a solution here : Compiling Sources Using A Different JDK
Let's say your JAVA_HOME points to JDK7 (which will run maven processes)
Your pom.xml could be :
<build>
<plugins>
<!-- we wan...