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How to append to New Line in Node.js
...possible to move your application from lets say a windows environment to a linux one. that means if your application is appending logs using os.EOL you will have some lines ending with /r/n (from the time app was running on windows) and then you will have rows ending just with /n (when app runs on l...
How can I quantify difference between two images?
...ot, you may need to resize or crop them. PIL library will help to do it in Python.
If they are taken with the same settings and the same device, they are probably the same.
Are images well-aligned?
If not, you may want to run cross-correlation first, to find the best alignment first. SciPy has fun...
How do I get the picture size with PIL?
How do I get a size of a pictures sides with PIL or any other Python library?
7 Answers
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Does pandas iterrows have performance issues?
...pply
a) reductions that can be performed in cython
b) iteration in python space
4) itertuples
5) iterrows
6) updating an empty frame (e.g. using loc one-row-at-a-time)
Using a custom Cython routine is usually too complicated, so let's skip that for now.
1) Vectorization is ALWAYS, ALWAYS ...
Creating a DateTime in a specific Time Zone in c#
...meZoneInfoLib.Net
This won't work outside of Windows (for example Mono on Linux) since the list of times comes from the Windows Registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\
Underneath that you'll find keys (folder icons in Registry Editor); the names of tho...
A weighted version of random.choice
...
Since Python 3.6 there is a method choices from the random module.
Python 3.6.1 (v3.6.1:69c0db5050, Mar 21 2017, 01:21:04)
Type 'copyright', 'credits' or 'license' for more information
IPython 6.0.0 -- An enhanced Interactive Pytho...
How can I open the interactive matplotlib window in IPython notebook?
I am using IPython with --pylab=inline and would sometimes like to quickly switch to the interactive, zoomable matplotlib GUI for viewing plots (the one that pops up when you plot something in a terminal Python console). How could I do that? Preferably without leaving or restarting my notebook.
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When should one use a spinlock instead of mutex?
... If you want to learn more about spinlocks and mutexes implemented in Linux kernel, I highly recommend reading chapter 5 of great Linux Device Drivers, Third Edition (LDD3) (mutexes: page 109; spinlocks: page 116).
– patryk.beza
Jan 14 '16 at 20:08
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How to handle exceptions in a list comprehensions?
I have some a list comprehension in Python in which each iteration can throw an exception.
6 Answers
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What's a correct and good way to implement __hash__()?
...getting and combining hashes to C builtins, which is typically faster than Python level code.
– ShadowRanger
Nov 4 '19 at 23:18
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