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Upgrade python in a virtualenv

...you will need to see your virtualenv version). If your virtualenv is installed with the same python version of the old one and upgrading your virtualenv package is not an option, you may want to read this in order to install a virtualenv with the python version you want. EDIT I've tested this ap...
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How do I find and view a TFS changeset by comment text?

... With the Power Tools installed: tf history $/ -r | ? { $_.comment -like '*findme*' } share | improve this answer | follow ...
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iOS Detect 3G or WiFi

... Shouldn't you call [reachability stopNotifier] after you have the status? – zekel Nov 9 '11 at 18:41 3 ...
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How does Rails keep track of which migrations have run for a database?

... Rails creates a table in your database called schema_migrations to keep track of which migrations have run. The table contains a single column, version. When Rails runs a migration, it takes the leading digits in the migration's file name and inserts a row for that "version",...
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Can you call Directory.GetFiles() with multiple filters?

...er, var files = Directory.EnumerateFiles("C:\\path", "*.*", SearchOption.AllDirectories) .Where(s => s.EndsWith(".mp3") || s.EndsWith(".jpg")); For earlier versions of .NET, var files = Directory.GetFiles("C:\\path", "*.*", SearchOption.AllDirectories) .Where(s => ...
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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the

... hash of last commit. Checkout the branch you wish to be at, and git merge _hash_ – Daniel May 31 '12 at 13:31 BE REAL...
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How do I programmatically click a link with javascript?

... Actually, so far it worked in all browsers I tried, including IE, Safari, Chrome, Firefox and Opera. – arik Jan 29 '12 at 17:17 ...
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When should I choose Vector in Scala?

It seems that Vector was late to the Scala collections party, and all the influential blog posts had already left. 6 Answ...
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Get the IP address of the machine

...hould be the same below. I've done a quick example below which will print all of the machine's IPv4 address, (you should also check the getifaddrs was successful ie returns 0). I've updated it show IPv6 addresses too. #include <stdio.h> #include <sys/types.h> #include <ifaddr...
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Pip freeze vs. pip list

...you are using a virtualenv, you can specify a requirements.txt file to install all the dependencies. A typical usage: $ pip install -r requirements.txt The packages need to be in a specific format for pip to understand, which is feedparser==5.1.3 wsgiref==0.1.2 django==1.4.2 ... That is the ...