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How can I add the sqlite3 module to Python?
...stall sqlite3 module. It is included in the standard library (since Python 2.5).
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What is the difference between `sorted(list)` vs `list.sort()`?
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sorted() returns a new sorted list, leaving the original list unaffected. list.sort() sorts the...
How to do a batch insert in MySQL
...nd separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
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How to take screenshot of a div with JavaScript?
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102
No, I don't know of a way to 'screenshot' an element, but what you could do, is draw the quiz re...
How can I upgrade specific packages using pip and a requirements file?
...exactly your problem, but in my case, I wasn't able to upgrade Django to 1.2.4 - I was always finishing with 1.2.3 version, so I uninstalled Django with:
<virtualenv>/bin/pip uninstall Django
Then I removed <virtualenv>/build/Django directory and finally I installed the proper version w...
Updating MySQL primary key
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235
Next time, use a single "alter table" statement to update the primary key.
alter table xx dro...
How to search by key=>value in a multidimensional array in PHP
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Code:
function search($array, $key, $value)
{
$results = array();
if (is_array($arra...
How to create a MySQL hierarchical recursive query
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For MySQL 8+: use the recursive with syntax.
For MySQL 5.x: use inline variables, path IDs, or ...
How to find Unused Amazon EC2 Security groups
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Note: this only considers security use in EC2, not other services like RDS. You'll need to do more work to include security groups used outside EC2. The good thing is you can't easily (might not even be possible) to delete active security groups if you miss one asso...
Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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No. pip will not install system-level dependencies. This means pip will not install RPM(s) (Re...