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Which is better in python, del or delattr?
... if you don't know the name of the attribute that you're deleting ahead of time.
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
... occasion. I could only upvote once. Wished they'd let me upvote for every time I've copied and pasted this.
– Damon Drake
Dec 31 '13 at 22:42
5
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Add column with constant value to pandas dataframe [duplicate]
...st store a column of lists, ensure not to copy the same reference multiple times.
# Wrong
df['new'] = [[]] * len(df)
# Right
df['new'] = [[] for _ in range(len(df))]
Generating a copy: df.assign(new=0)
If you need a copy instead, use DataFrame.assign:
df.assign(new='y')
A B C new
0 x...
How to test a merge without actually merging first
...'t know exactly if it is your case, but your question remember me that sometimes I start a feature, I commit over the days and I merge the develop on it many times.
On this point I lose the control over the exact files I changed and I will only know it when my feature were closed and my code go to...
What is the aspnet_client folder for under the IIS structure?
...un by things like Windows Update/AddRemove Windows components/IIS. So sometimes even if you do delete it, it can come back randomly. There may be a way to stop this behavior, but I haven't found it (maybe changing the application version to .NET 2 would do it actually).
So unless you're using cert...
Extract substring in Bash
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@jonnyB, Some time in the past that worked. I am told by my coworkers it stopped, and they changed it to be a sed command or something. Looking at it in the history, I was running it in a sh script, which was probably dash. At this point I...
How to locate a file in Solution Explorer in Visual Studio 2010?
I have a huge solution with multiple projects. Sometime I need to navigate to a file in Solution Explorer . Using the VS 2010 ' Navigate To ' feature I can open any file by name in Visual Studio 2010 but I want to be able to select the file in Solution Explorer as well?
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HTML5 Canvas Resize (Downscale) Image High Quality?
...owser does make use of 4 pixels to make one-.
BUT... if you use several time a 2X downsampling, you'll face the issue that the successive rounding errors will add too much noise.
What's worse, you won't always resize by a power of two, and resizing to the nearest power + a last resizing is very n...
What is the best way to concatenate two vectors?
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@boycy No. It is amortized constant time to push_back one element. To push back n elements is O(n)
– Konrad Lindenbach
Mar 12 '16 at 1:47
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Detecting that the browser has no mouse and is touch-only
... enable hover styles? You add more buttons?
Either way you are increasing time to glass because you have to wait for an event to fire.
But then what happens when your noble user decides wants to unplug his mouse and go full touch.. do you wait for him to touch your now crammed interface, then chan...