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Checking a Python module version at runtime
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I'd stay away from hashing. The version of libxslt being used might contain some type of patch that doesn't effect your use of it.
As an alternative, I'd like to suggest that you don't check at run time (don't know if that's a hard req...
Rails migration for change column
... @QPaysTaxes up should contain what you want to change your column from and to, and down should contain how to reverse that change.
– DaveStephens
Jan 24 '16 at 14:02
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Android: open activity without save into the stack
...artActivity(i);
The FLAG_ACTIVITY_NO_HISTORY flag keeps the new Activity from being added to the history stack.
NB: As @Sam points out, you can use i.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY); instead. There is no functional difference.
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List Git aliases
...builds upon the answer by johnny. It applies if you're not using git-alias from git-extras.
On Linux, run once:
git config --global alias.alias "! git config --get-regexp ^alias\. | sed -e s/^alias\.// -e s/\ /\ =\ /"
This will create a permanent git alias named alias which gets stored in your ~...
Nginx 403 forbidden for all files
...g their own FPM sockets so I was able to fix that one by changing the user from nginx to root in /var/nginx/nginx.conf - perhaps that will help someone else who comes across this issue. S/O to DataPsyche for the second part.
– Winter
Nov 3 '14 at 19:54
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When to use an assertion and when to use an exception
...t the harddrive suddenly disappears.
An assertion would stop the program from running, but an exception would let the program continue running.
Note that if(group != null) is not an assertion, that is just a conditional.
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How to generate an openSSL key using a passphrase from the command line?
...ects the encrypted private key on standard input - you can instead read it from a file using -in <file>).
Example of creating a 3072-bit private and public key pair in files, with the private key pair encrypted with password foobar:
openssl genrsa -aes128 -passout pass:foobar -out privkey....
Using async-await on .net 4
I'm currently starting to create an application that would profit a lot from C# 5's async-await feature. But I'm not sure which version of VS and of the async runtime to use.
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ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
... module via web platform installer.
I recommend to check all dependencies from web.config and install them.
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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...e datatypes you have - namely, int and Integer. You're getting an Integer from valueOf on the right hand side, of course.
After the conversion, you're comparing two primitive int values. Comparison happens just as you would expect it to with respect to primitives, so you wind up comparing 128 and ...