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How to import a module given its name as string?
...st']
>>> modules = map(__import__, moduleNames)
Ripped straight from Dive Into Python.
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Creation timestamp and last update timestamp with Hibernate and MySQL
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Im my case removing nullable=false from @Column(name = "create_date" , nullable=false) worked
– Shantaram Tupe
Nov 22 '17 at 10:14
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Difference between 'new operator' and 'operator new'?
...hat allocates raw memory -- at least conceptually, it's not much different from malloc(). Though it's fairly unusual unless you're writing something like your own container, you can call operator new directly, like:
char *x = static_cast<char *>(operator new(100));
It's also possible to ove...
curl : (1) Protocol https not supported or disabled in libcurl
... application/json" --data-binary "{ \"name\":\"Curler\", \"text\": \"Hello from the command line\" }" instead of curl "http://localhost:3030/messages/" -H "Content-Type: application/json" --data-binary '{ "name":"Curler", "text": "Hello from the command line" }'... take note of the single and unesca...
ViewPager and fragments — what's the right way to store fragment's state?
...r.instantiateItem(View, int) and save a reference to the fragment returned from the super call before returning it (it has the logic to find the fragment, if already present).
For a fuller picture, have a look at some of the source of FragmentPagerAdapter (short) and ViewPager (long).
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Bulk insert with SQLAlchemy ORM
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Compared to inserting the same data from CSV with \copy with psql (from the same client to the same server), I see a huge difference in performance on the server side resulting in about 10x more inserts/s. Apparently is bulk-loading using \copy (or COPY on the ...
Getting the location from an IP address [duplicate]
...ant to retrieve information like the city, state, and country of a visitor from their IP address, so that I can customize my web page according to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and M...
Python name mangling
...e, you will get annoyed by Python programmers telling you to remove the __ from your code when you ask a question in Stack Overflow :)
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What is the difference between a weak reference and an unowned reference?
...bject (a.k.a. they don't increase the retain count in order to prevent ARC from deallocating the referred object).
But why two keywords? This distinction has to do with the fact that Optional types are built-in the Swift language. Long story short about them: optional types offer memory safety (this...
How to get distinct values from an array of objects in JavaScript?
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for typescript you have to use new Set wrapped in Array.from()... i will provide that answer below. @AngJobs
– Christian Matthew
Aug 25 '17 at 16:24
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