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Find which version of package is installed with pip
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As of pip 1.3, there is a pip show command.
$ pip show Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe
In older versions, pip freeze and grep should do the job nicely.
$ pip freeze | grep Ji...
Equivalent of String.format in jQuery
...r ASP.NET AJAX is available for your reference, so you can pick through it and include the parts you want to continue using into a separate JS file. Or, you can port them to jQuery.
Here is the format function...
String.format = function() {
var s = arguments[0];
for (var i = 0; i < argume...
How do I escape a single quote in SQL Server?
...you're using an ORM it will do it for you. If you're building your SQL commands manually you'll want to use the language's "prepared statements" functionality. If you're doing it in Management Studio then you'll have to do the replace.
– Cᴏʀʏ
Feb 15 '14 at ...
How do I use the conditional operator (? :) in Ruby?
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It is the ternary operator, and it works like in C (the parenthesis are not required). It's an expression that works like:
if_this_is_a_true_value ? then_the_result_is_this : else_it_is_this
However, in Ruby, if is also an expression so: if a then b ...
Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4
...nts to parse the given positional argument as the keyword argument kwargs, and since a string is an iterable, an atypical code path begins to unfold. Always use name= on your urls!
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How do I use shell variables in an awk script?
...ss external shell variables to an awk script, but I'm confused about ' and " .
7 Answers
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How to get Sinatra to auto-reload the file after each change?
...load on changes?"
First off, in-process code reloading in Ruby is hard and having a
solution that works for every scenario is technically impossible.
Which is why we recommend you to do out-of-process reloading.
First you need to install rerun if you haven’t already:
$ gem instal...
Can I change the height of an image in CSS :before/:after pseudo-elements?
...djusting the background-size is permitted. You still need to specify width and height of the block, however.
.pdflink:after {
background-image: url('/images/pdf.png');
background-size: 10px 20px;
display: inline-block;
width: 10px;
height: 20px;
content:"";
}
See the full...
Gdb print to file instead of stdout
I am running gdb and want to examine one of those unfortunate god objects. It takes many pages (and I have a 24" monitor turned sideways!) to see the whole thing. For ease of use, I'd like gdb to print the object to a file instead of the screen so that I can open it in vi and move around with ease...
How do I enable standard copy paste for a TextView in Android?
I want to enable standard copy paste for a TextView (the same as for EditText). How can I do it?
9 Answers
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