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ImportError: numpy.core.multiarray failed to import
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I was getting the same error and was able to solve it by updating my numpy installation to 1.8.0:
pip install -U numpy
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Deep cloning objects
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Whilst the standard practice is to implement the ICloneable interface (described here, so I won't regurgitate), here's a nice deep clone object copier I found on The Code Project a while ago and incorporated it in our stuff.
As mentioned ...
How to swap two variables in JavaScript
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Here's a one-liner to swap the values of two variables.
Given variables a and b:
b = [a, a = b][0];
Demonstration below:
var a=1,
b=2,
output=document.getElementById('output');
output.innerHTML="<p>Original: "+a+", "+b+"</p>";
b = [a, a = b][0];
output.innerHT...
How do I connect to this localhost from another computer on the same network?
I'm currently working on a project and I would like to test it out on two laptops at home where one laptop connects to the localhost on the other. I am using XAMPP. How do I do this?
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Get OS-level system information
... run on many different platforms, but primarily variants of Solaris, Linux and Windows.
16 Answers
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HttpClient.GetAsync(…) never returns when using await/async
... misusing the API.
Here's the situation: in ASP.NET, only one thread can handle a request at a time. You can do some parallel processing if necessary (borrowing additional threads from the thread pool), but only one thread would have the request context (the additional threads do not have the reque...
size_t vs. uintptr_t
The C standard guarantees that size_t is a type that can hold any array index. This means that, logically, size_t should be able to hold any pointer type. I've read on some sites that I found on the Googles that this is legal and/or should always work:
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Python: How to ignore an exception and proceed? [duplicate]
I have a try...except block in my code and When an exception is throw. I really just want to continue with the code because in that case, everything is still able to run just fine. The problem is if you leave the except: block empty or with a #do nothing, it gives you a syntax error. I can't use con...
创建自定义 TinyWebDB 服务 · App Inventor 2 中文网
...ar phone, TinyWebDB can be used to facilitate communication between phones and apps (e.g., multi-player games).
By default, the TinyWebDB component stores data on a test service provided by App Inventor, http://tinywebdb.appinventor.mit.edu/ . This service is helpful for testing, but it is shared b...
What's the difference between isset() and array_key_exists()? [duplicate]
...n an array, whereas isset will only return true if the key/variable exists and is not null.
$a = array('key1' => 'フーバー', 'key2' => null);
isset($a['key1']); // true
array_key_exists('key1', $a); // true
isset($a['key2']); // false
array_key_exists('key2', $a...