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What's the purpose of META-INF?
In Java, you often see a META-INF folder containing some meta files. What is the purpose of this folder and what can I put there?
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How do I do an OR filter in a Django query?
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There is Q objects that allow to complex lookups. Example:
from django.db.models import Q
Item.objects.filter(Q(creator=owner) | Q(moderated=False))
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When I catch an exception, how do I get the type, file, and line number?
...o error")
except Exception as e:
exc_type, exc_obj, exc_tb = sys.exc_info()
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
print(exc_type, fname, exc_tb.tb_lineno)
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Limiting floats to two decimal points
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You are running into the old problem with floating point numbers that not all numbers can be represented exactly. The command line is just showing you the full floating point form from memory.
With floating point representation, your rounded version is the same numb...
Heroku NodeJS http to https ssl forced redirect
I have an application up and running on heroku with express on node with https,. How do I identify the protocol to force a redirect to https with nodejs on heroku?
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OS X Bash, 'watch' command
I'm looking for the best way to duplicate the Linux 'watch' command on Mac OS X. I'd like to run a command every few seconds to pattern match on the contents of an output file using 'tail' and 'sed'.
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How to swap keys and values in a hash
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Ruby has a helper method for Hash that lets you treat a Hash as if it was inverted (in essence, by letting you access keys through values):
{a: 1, b: 2, c: 3}.key(1)
=> :a
If you want to keep the inverted hash, then Hash#invert should work for ...
How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
In Windows you can zip some files by
17 Answers
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Can I set an opacity only to the background image of a div?
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8 Answers
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How to call Stored Procedure in Entity Framework 6 (Code-First)?
I am very new to Entity Framework 6 and I want to implement stored procedures in my project. I have a stored procedure as follows:
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