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String formatting in Python 3
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Python 3.6 now supports shorthand literal string interpolation with PEP 498. For your use case, the new syntax is simply:
f"({self.goals} goals, ${self.penalties})"
This is similar to the previous .format standard, but lets one easil...
Javascript trick for 'paste as plain text` in execCommand
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Seems now that the problem I had was due to calling your script from a file which was itself loaded by a script. I can't paste into neither textarea nor input in your fiddle in FF 47.0.1 (can do it in chrome), but can paste into di...
How to get the currently logged in user's user id in Django?
...d sessions
sessions = Session.objects.filter(expire_date__gte=timezone.now())
user_id_list = []
# build list of user ids from query
for session in sessions:
data = session.get_decoded()
# if the user is authenticated
if data.get('_auth_user_id'):
u...
Compiling Java 7 code via Maven
...ead of CurrentJDK). Not an elegant fix but I just hardcoded the export and now it works (PS: maven on OSX is at /usr/share/maven/bin/mvn)
– Raekye
Aug 4 '13 at 6:55
6
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C# 4.0 optional out/ref arguments
...I: Included on the new features for C# 7.0 enumerated here, "discards" is now allowed as out parameters in the form of a _, to let you ignore out parameters you don’t care about:
p.GetCoordinates(out var x, out _); // I only care about x
P.S. if you're also confused with the part "out var x", r...
What is a bus error?
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Bus errors are rare nowadays on x86 and occur when your processor cannot even attempt the memory access requested, typically:
using a processor instruction with an address that does not satisfy its alignment requirements.
Segmentation faults...
Django: “projects” vs “apps”
.... Simple as that. All this "project"/"app" stuff is just python packages.
Now, how are you supposed to do it? Or rather, how might I do it? Well, if you create a significant piece of reusable functionality, like say a markup editor, that's when you create a "top level app" which might contain widge...
When is -XAllowAmbiguousTypes appropriate?
...ins why sugarSym doesn't require the AllowAmbiguousTypes extension.
Let's now look at sugar. The first thing I notice is that the compiler is not complaining about an ambiguous type, but rather, about overlapping instances:
Overlapping instances for SyntacticN b fi
arising from the ambiguity che...
Find intersection of two nested lists?
I know how to get an intersection of two flat lists:
20 Answers
20
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How do I catch a numpy warning like it's an exception (not just for testing)?
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To add a little to @Bakuriu's answer:
If you already know where the warning is likely to occur then it's often cleaner to use the numpy.errstate context manager, rather than numpy.seterr which treats all subsequent warnings of the same type the same regardless of where they occ...