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Django: How to manage development and production settings?
... use a bootstrap script or a process manager to load the correct settings (by setting the environment), or just run it from your shell before starting Django: export DJANGO_SETTINGS_MODULE=myapp.production_settings.
Note that you can run this export at any time from a shell — it does not need to ...
How to place div side by side
...all day to find a solution and this answer solved it! I have 4 panels side by side with the 3rd and 4th panels sometimes not having anything in them. They all live in a containing div with a border around them. The whole float:left on the first div situation left me with a div going past the border ...
Android accelerometer accuracy (Inertial navigation)
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You get position by integrating the linear acceleration twice but the error is horrible. It is useless in practice.
Here is an explanation why (Google Tech Talk) at 23:20. I highly recommend this video.
It is not the accelerometer noise tha...
Iterate over the lines of a string
...ike splitlines are implemented in very fast ways; putting strings together by programming at a very low level (esp. by loops of += of very small pieces) can be quite slow.
Edit: added @Jacob's proposal, slightly modified to give the same results as the others (trailing blanks on a line are kept), i...
Java Delegates?
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Not really, no.
You may be able to achieve the same effect by using reflection to get Method objects you can then invoke, and the other way is to create an interface with a single 'invoke' or 'execute' method, and then instantiate them to call the method your interested in (i.e. usin...
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is no
...e or running. When the problem occurs you can identify any blocked process by the process state. If you right-click on the process and select details it'll show you the last query executed by the process.
The second issue will cause the database to use a sub-optimal query plan. It can be resolved b...
Sorting multiple keys with Unix sort
I have potentially large files that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
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How can I get the count of milliseconds since midnight for the current?
... @MarkusMikkolainen: Nope, System.currentTimeMillis() isn't affected by time zones.
– Jon Skeet
Aug 2 '12 at 20:47
1
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java.net.SocketException: Connection reset
...but it is not unknown for commercial software.
More commonly, it is caused by writing to a connection that the other end has already closed normally. In other words an application protocol error.
It can also be caused by closing a socket when there is unread data in the socket receive buffer.
In Win...
Are delphi variables initialized with a value by default?
... tests to see what object variables and stack variables are initialized to by default:
10 Answers
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