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TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...ementError when trying to save a Django User model instance and in its post_save signal, I'm saving some models that have the user as the foreign key.
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Running a Haskell program on the Android OS
... small inf style file which describes the platform (word size, c-compiler, etc) I've done this with the Wii homebrew dev kit and it was quite easy. However jhc still has some stability issues with complex code such as using a monad transformer stack with IO but jhc has been improving a lot over the ...
String comparison using '==' vs. 'strcmp()'
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@onur güngör Actually, this does answers the op's question, which is So is there any reason to use strcmp() ?, while Postfuturist's answer doesn't. Oh, hell... no one answer seemed to compile at once the use of strcmp(), the performance of =...
How to find out the MySQL root password
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Nice instruction flow especially: then run mysql in a new terminal
– Mohammed Subhi Sheikh Quroush
Mar 27 '15 at 7:49
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Easiest way to convert int to string in C++
...icking up a discussion with @v.oddou a couple of years later, C++17 has finally delivered a way to do the originally macro-based type-agnostic solution (preserved below) without going through macro uglyness.
// variadic template
template < typename... Args >
std::string sstr( Args &&....
How do I delete everything in Redis?
...(); // your JedisCluster instance
for (JedisPool pool : jedisCluster.getClusterNodes().values()) {
try (Jedis jedis = pool.getResource()) {
jedis.flushAll();
}
catch (Exception ex){
System.out.println(ex.getMessage());
}
}
}
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How do I include negative decimal numbers in this regular expression?
...itive values, but I want it to also allow negative values e.g. -10, -125.5 etc.
14 Answers
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Python set to list
...k that you didn't overwrite list by accident:
>>> assert list == __builtins__.list
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How to make an app's background image repeat
I have set a background image in my app, but the background image is small and I want it to be repeated and fill in the whole screen. What should I do?
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How to avoid using Select in Excel VBA
...ions. However, I am not sure how to refer to things (like the ActiveCell etc.) if not using Select .
15 Answers
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