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Python syntax for “if a or b or c but not all of them”

I have a python script that can receive either zero or three command line arguments. (Either it runs on default behavior or needs all three values specified.) ...
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Calendar Recurring/Repeating Events - Best Storage Method

I am building a custom events system, and if you have a repeating event that looks like this: 12 Answers ...
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Why not use Double or Float to represent currency?

...lways been told never to represent money with double or float types, and this time I pose the question to you: why? ...
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?

Is it guaranteed that False == 0 and True == 1 , in Python (assuming that they are not reassigned by the user)? For instance, is it in any way guaranteed that the following code will always produce the same results, whatever the version of Python (both existing and, likely, future ones)? ...
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Difference between “andand && in Ruby?

What is the difference between the && and and operators in Ruby? 7 Answers ...
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Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools

Did anybody have similar problem with this, I import android project and I get errors like 12 Answers ...
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In the shell, what does “ 2>&1 ” mean?

In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command: ...
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SQL injection that gets around mysql_real_escape_string()

..._escape_string - this makes no sense. It doesn't differ from (int) at all. And they will produce the same result for every input – zerkms Jul 24 '12 at 22:40 ...
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Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?

... When it comes to database queries, always try and use prepared parameterised queries. The mysqli and PDO libraries support this. This is infinitely safer than using escaping functions such as mysql_real_escape_string. Yes, mysql_real_escape_string is effectively just a ...
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Undefined behavior and sequence points

... C++98 and C++03 This answer is for the older versions of the C++ standard. The C++11 and C++14 versions of the standard do not formally contain 'sequence points'; operations are 'sequenced before' or 'unsequenced' or 'indetermina...