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Difference between len() and .__len__()?
Is there any difference between calling len([1,2,3]) or [1,2,3].__len__() ?
4 Answers
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Sticky sidebar: stick to bottom when scrolling down, top when scrolling up
I have been looking for some time now for a solution to my sticky sidebar problem. I have a specific idea of how I would like it to act; effectively, I would like it to stick to the bottom as you scroll down, and then as soon as you scroll back up I would like it to stick to the top, in a fluid moti...
SyntaxError: Non-ASCII character '\xa3' in file when function returns '£'
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I'd recommend reading that PEP the error gives you. The problem is that your code is trying to use the ASCII encoding, but the pound symbol is not an ASCII character. Try using UTF-8 encoding. You can start by putting # -*- coding: utf-8 -*- at the top of your .py file. To get mor...
GDB corrupted stack frame - How to debug?
I have the following stack trace. Is it possible to make out anything useful from this for debugging?
5 Answers
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How can prepared statements protect from SQL injection attacks?
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The idea is very simple - the query and the data are sent to the database server separately.
That's all.
The root of the SQL injection problem is in the mixing of the code and the data.
In fact, our SQL query is a legitimate program.
And we are creating such a program dynamically, adding...
Is the 'override' keyword just a check for a overridden virtual method?
...word in C++11 is nothing more than a check to make sure that the function being implemented is the override ing of a virtual function in the base class.
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How can I have grep not print out 'No such file or directory' errors?
I'm grepping through a large pile of code managed by git, and whenever I do a grep, I see piles and piles of messages of the form:
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When should I use the new keyword in C++?
I've been using C++ for a short while, and I've been wondering about the new keyword. Simply, should I be using it, or not?
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Is there a Subversion command to reset the working copy?
Is there a single Subversion command that would “reset” a working copy exactly to the state that’s stored in the repository? Something like git reset --hard or (ha, hard Git reset does not remove unversioned files either!) rm -rf wc && svn co <url> wc .
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How to know which version of Symfony I have?
I know that I have downloaded a Symfony2 project and started with but I have updated my vendor several times and I want to know which version of symfony I have
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