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Which is faster in Python: x**.5 or math.sqrt(x)?
...or some time. As the title say, which is faster, the actual function or simply raising to the half power?
14 Answers
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Batch file include external file for variables
...ternal file containing some variables (say configuration variables). Is it possible?
8 Answers
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Detecting iOS / Android Operating system
I've done some research, and this question has come up, but not in the way I intend. I'm building a page for a client that is a QR code landing, which is a place to download an application. So he doesn't have to print out 2 QR codes on a page, I'd like to detect the current operating system (Apple...
How to change MySQL data directory?
Is it possible to change my default MySQL data directory to another path? Will I be able to access the databases from the old location?
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Fastest way to implode an associative array with keys
I'm looking for a fast way to turn an associative array in to a string. Typical structure would be like a URL query string but with customizable separators so I can use ' & ' for xhtml links or ' & ' otherwise.
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How do I compute derivative using Numpy?
How do I calculate the derivative of a function, for example
8 Answers
8
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What Vim command(s) can be used to quote/unquote words?
...nge quoting (e.g. from ' to " ) in Vim? I know about the surround.vim plugin, but I would like to use just Vim.
16 An...
How to pause a YouTube player when hiding the iframe?
...licks on a link, this div becomes visible, the user should then be able to play the video.
14 Answers
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Can Android do peer-to-peer ad-hoc networking?
Is it possible to set up Android in ad-hoc peer-to-peer wifi mode? For example, I would like to have one phone broadcast a message, and have all peers in the network receive the broadcast, without having a server. I would like to use wifi since bluetooth range is more limited.
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How to query as GROUP BY in django?
... you can use the aggregation features of the ORM:
from django.db.models import Count
Members.objects.values('designation').annotate(dcount=Count('designation'))
This results in a query similar to
SELECT designation, COUNT(designation) AS dcount
FROM members GROUP BY designation
and the output ...