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Why is creating a Thread said to be expensive?
... there is a fair bit of work involved:
A large block of memory has to be allocated and initialized for the thread stack.
System calls need to be made to create / register the native thread with the host OS.
Descriptors need to be created, initialized and added to JVM-internal data structures.
It...
Creating Unicode character from its number
... So you need to be absolutely sure ahead of time that your value of c is smaller than 0x10000, or else this approach will break horribly.
– David Given
Mar 13 '12 at 22:29
1
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Converting between datetime, Timestamp and datetime64
...>> numpy.__version__
'1.6.2' # current version available via pip install numpy
I can reproduce the long value on numpy-1.8.0 installed as:
pip install git+https://github.com/numpy/numpy.git#egg=numpy-dev
The same example:
>>> from datetime import datetime
>>> import num...
How to create a self-signed certificate with OpenSSL
...
For anyone else using this in automation, here's all of the common parameters for the subject: -subj "/C=US/ST=Oregon/L=Portland/O=Company Name/OU=Org/CN=www.example.com"
– Alex S
Jun 5 '15 at 18:13
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How to identify numpy types in python?
...o test for that. And so on. The point is, you have to know what you're actually asking for when you want to do something as unusual as loose manual type switching, but once you know, it's easy to implement.
– abarnert
Mar 11 '16 at 20:41
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Concatenating two lists - difference between '+=' and extend()
I've seen there are actually two (maybe more) ways to concatenate lists in Python:
One way is to use the extend() method:
9...
Android Studio inline compiler showing red errors, but compilation with gradle works fine
... Deleting everything in .idea directory is a bad idea, as it might reset all project settings. Just removing .idea/libraries and .idea/caches finally solved the problem for me after trying all other solutions.
– fdermishin
May 17 '18 at 15:56
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What's a reliable way to make an iOS app crash?
...er performs a particular action that a real user is unlikely to do accidentally.
18 Answers
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node.js fs.readdir recursive directory search
... search using fs.readdir? I realise that we could introduce recursion and call the read directory function with the next directory to read, but am a little worried about it not being async...
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Finding the type of an object in C++
...
dynamic_cast should do the trick
TYPE& dynamic_cast<TYPE&> (object);
TYPE* dynamic_cast<TYPE*> (object);
The dynamic_cast keyword casts a datum from one pointer or reference type to another, performing a runtime...