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Split a string by a delimiter in python
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@EndenDragon The for loop will automatically apply x.strip() and return a list of matches without whitespace on either side. The devil is in the details.
– Sébastien Vercammen
Jun 29 '16 at 13:59
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Python None comparison: should I use “is” or ==?
...ject None, so when you do my_var is None, you're checking whether they actually are the same object (not just equivalent objects)
In other words, == is a check for equivalence (which is defined from object to object) whereas is checks for object identity:
lst = [1,2,3]
lst == lst[:] # This is Tr...
Find the files existing in one directory but not in the other [closed]
...rison is to use find with md5sum, then a diff.
Example:
Use find to list all the files in the directory then calculate the md5 hash for each file and pipe it to a file:
find /dir1/ -type f -exec md5sum {} \; > dir1.txt
Do the same procedure to the another directory:
find /dir2/ -type f -exe...
How to call an external command?
...can get the stdout, stderr, the "real" status code, better error handling, etc...).
The official documentation recommends the subprocess module over the alternative os.system():
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; usin...
Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
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Of course it doesn't fetches this url, it's an URI : w3schools.com/xml/xml_namespaces.asp
– NitroG42
Jul 15 '13 at 9:42
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C# Float expression: strange behavior when casting the result float to int
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First of all, I assume that you know that 6.2f * 10 is not exactly 62 due to floating point rounding (it's actually the value 61.99999809265137 when expressed as a double) and that your question is only about why two seemingly identic...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
...ecification, the constructs used to implement them under the hood (vararg calling convention, TypedReference type, arglist, refanytype, mkanyref, and refanyval instructions) are perfectly documented in the CLI Specification (ECMA-335) in the Vararg library.
Being defined in the Vararg Library makes ...
What is duck typing?
..., but will fail on other objects which can drive: trucks, mopeds, tuk-tuks etc. It won't work on trucks because our magic wand is expecting it to only work on cars.
In other words, in this scenario, the magic wand looks very closely at what the object is (is it a car?) rather than what the object ...
How do you read from stdin?
I'm trying to do some of the code golf challenges, but they all require the input to be taken from stdin . How do I get that in Python?
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Implementing IDisposable correctly
...uld have any unmanaged resources to be freed you should include Finalizer calling Dispose(false), that will allow GC to call Finalizer when doing garbage collection (in case Dispose was not called yet) and properly free unmanaged resources.
– mariozski
May 17 '...