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libxml install error using pip
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** make sure the development packages of libxml2 and libxslt are installed **
From the lxml documentation, assuming you are running a Debian-based distribution :
sudo apt-get install libxml2-dev libxslt-dev python-dev
For Debian based systems, it should be enough to in...
Python List vs. Array - when to use?
...y, you can implement it as a List, or else use the 'array' module in the standard library. I have always used Lists for 1d arrays.
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How can I view a git log of just one user's commits?
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This works for both git log and gitk - the 2 most common ways of viewing history.
You don't need to use the whole name:
git log --author="Jon"
will match a commit made by "Jonathan Smith"
git log --author=Jon
and
git log --author=Smith
would also wor...
How to call an async method from a getter or setter?
...int (2) wouldn't work in that case. Just implement INotifyPropertyChanged, and then decide whether you want the old value returned or default(T) while the asynchronous update is in flight.
– Stephen Cleary
Nov 19 '13 at 11:57
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How can I change the thickness of my tag
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For consistency remove any borders and use the height for the <hr> thickness. Adding a background color will style your <hr> with the height and color specified.
In your stylesheet:
hr {
border: none;
height: 1px;
/* Set the hr color ...
tag vs tag
... behaviour is not defined anywhere. While you can in theory leave it
out and assume it will be interpreted as JavaScript, it's invalid
HTML, so why not add it.
In HTML 5, the type attribute is optional and defaults to
text/javascript
Use <script type="text/javascript"> or simply &...
What is JavaScript garbage collection?
...Script garbage collection? What's important for a web programmer to understand about JavaScript garbage collection, in order to write better code?
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How to find all occurrences of a substring?
Python has string.find() and string.rfind() to get the index of a substring in a string.
20 Answers
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How to get a specific version of a file in Mercurial?
I am new to Mercurial. Just cannot find the right command. Tried update/checkout with no luck. I am using local repository. Thanks
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How can I get the actual stored procedure line number from an error message?
When I use SQL Server and there's an error, the error message gives a line number that has no correlation to the line numbers in the stored procedure. I assume that the difference is due to white space and comments, but is it really?
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