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Wrapping a C library in Python: C, Cython or ctypes?
...ith as you're still writing Python!
I recently wrapped an FTDI driver for communicating with a USB chip using ctypes and it was great. I had it all done and working in less than one work day. (I only implemented the functions we needed, about 15 functions).
We were previously using a third-party ...
How can I handle time zones in my webapp?
...s ambiguously used. This looks like a reference: en.wikipedia.org/wiki/Tz_database From what I can tell a "timezone" is "Area/Location", e.g. "America/New_York". That appears to be geographic which is great because for instance America/Los_Angeles means BOTH PST and PDT depending on whether the ...
Paging with Oracle
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I wondered why two WHERE couldn't be combined with AND, and then found this: orafaq.com/wiki/ROWNUM
– Mengdi Gao
Dec 17 '12 at 6:09
1
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StringBuilder vs String concatenation in toString() in Java
...tes that this is optional. In fact, I just did a simple test with JRE 1.6.0_15 and I didn't see any compiler optimization in the decompiled class.
– bruno conde
Oct 7 '09 at 16:07
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Changing default encoding of Python?
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Best explanation for languages without null
Every so often when programmers are complaining about null errors/exceptions someone asks what we do without null.
11 Answe...
Parsing a string into a boolean value in PHP
...;
} else {
return false;
}
}
The documentation explains that: http://php.net/manual/en/language.types.boolean.php :
When converting to boolean, the following values are considered FALSE:
the boolean FALSE itself
the integer 0 (zero)
the float 0.0 (zero)
the empty string, and the strin...
Proper SCSS Asset Structure in Rails
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I view an older version of an SVN file?
... is to use a program/app that makes it easy for you. I like to use trac : http://trac.edgewall.org/wiki/TracSubversion
It provides a great svn browser and makes it really easy to go back through your revisions.
It may be a little overkill to set this up for one specific revision you want to check...
Which is the fastest algorithm to find prime numbers?
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If it has to be really fast you can include a list of primes:
http://www.bigprimes.net/archive/prime/
If you just have to know if a certain number is a prime number, there are various prime tests listed on wikipedia. They are probably the fastest method to determine if large numbers ar...