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Change UICollectionViewCell size on different device orientations
...ls with animation (you can just pass nil to both block params if you've no extra adjustments to perform).
2) Instead of hardcoding the item sizes in -collectionView:layout:sizeForItemAtIndexPath, just divide the height or width of the collectionView's bounds by the number of cells you want to fit o...
SQLAlchemy default DateTime
... This isn't right. The timestamp at model load will be used for all new records rather than the time the record is added.
– SkyLeach
Feb 9 '16 at 16:18
10
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pytest: assert almost equal
...
I noticed that this question specifically asked about py.test. py.test 3.0 includes an approx() function (well, really class) that is very useful for this purpose.
import pytest
assert 2.2 == pytest.approx(2.3)
# fails, default is ± 2.3e-06
assert 2.2 == pyte...
Having options in argparse with a dash
...l argument actions, the value of dest is normally inferred from the option strings. ArgumentParser generates the value of dest by taking the first long option string and stripping away the initial -- string. Any internal - characters will be converted to _ characters to make sure the string is a val...
Can iterators be reset in Python?
...ary data needs to be
stored). In general, if one iterator
uses most or all of the data before
another iterator starts, it is faster
to use list() instead of tee().
Basically, tee is designed for those situation where two (or more) clones of one iterator, while "getting out of sync" with ea...
Redirecting Output from within Batch file
... good and fast way that only opens and positions the file once
@echo off
call :sub >output.txt
exit /b
:sub
command1
command2
...
commandN
Edit 2020-04-17
Every now and then you may want to repeatedly write to two or more files. You might also want different messages on the screen. It is sti...
How can I convert a series of images to a PDF from the command line on linux? [closed]
...rver I wrote in cgi/bash and want to be able to convert a bunch of images (all in one folder) to a pdf from the command line. How can that be done?
...
Set HTTP header for one request
...TP request headers , but from what I can tell, it will set that header for all requests of that method. I have something like this in my code:
...
How to set IntelliJ IDEA Project SDK
I just installed IntelliJ IDEA and when I try to create my first Project it asks for me to set up the Project SDK. When I click on "JDK" it asks for me to select the home directory of the JDK as shown in this image.
...
Time complexity of Euclid's Algorithm
... The base is the golden ratio obviously. Why? Because it takes exactly one extra step to compute nod(13,8) vs nod(8,5). For a fixed x if y<x the worst case performance is x=fib(n+1), y=fib(n). Here y depends on x, so we can look at x only.
– Stepan
Jul 27 '1...