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How can I count the occurrences of a list item?
... very late to the party but wouldn't following code throw an error if a list contained more than one instance of i, because it will try to enter multiple keys of same value in a dictionary. dict((i, a.count(i)) for i in a)
– rp1
Sep 16 '19 a...
Numpy where function multiple conditions
...4,5,14,2,4,3,7])
np.where((ar>3) and (ar<6), 'yo', ar)
Output:
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
When we use Ampersand(&):
ar = np.array([3,4,5,14,2,4,3,7])
np.where((ar>3) & (ar<6), 'yo', ar)
Output:
arra...
Hidden Features of C++? [closed]
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You can put URIs into C++ source without error. For example:
void foo() {
http://stackoverflow.com/
int bar = 4;
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}
share
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How can I disable logging while running unit tests in Python Django?
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Sometimes in unit tests, I want to assert that an error was logged thus this method is not ideal. Still, it is a good answer.
– Sardathrion - against SE abuse
Jan 21 '16 at 9:14
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Limits of Nat type in Shapeless
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scala> implicitly[OneMillion =:= OneMillionAndOne]
<console>:16: error: Cannot prove that OneMillion =:= OneMillionAndOne.
implicitly[OneMillion =:= OneMillionAndOne]
^
This could be used to e.g. enforce same array size when doing bit operations on Array[Byte].
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How can I download a specific Maven artifact in one command line?
...bRaihle Then I cannot download file without pom.xml, getting the following error: Goal requires a project to execute but there is no POM in this directory.
– Athlan
Jun 3 '19 at 12:26
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Check if a user has scrolled to the bottom
...op, and clientHeight are all rounded which could potentially lead to a 3px error if all align, (B) 3 pixels is hardly visible to the user so the user may think something is wrong with your site when they "think" they are at the bottom of the page when in fact they are not, and (C) certain devices (e...
Executing Shell Scripts from the OS X Dock?
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I just attempted this, and received an error in El Capitan (10.11) of: "You can't open .... because powerpc applications are no longer supported." :D That's quite interesting!
– AllenH
Oct 9 '15 at 9:49
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Elegant way to check for missing packages and install them?
... work, at least for me. When I tried the robust version of this, I get two error messages as R doesn't know how to handle "return True" and "return eval" for some reason. So I would really like a function like this that loads a package if present in my library and otherwise installs (and afterwards ...
unable to locate nuget.exe when building webservice on appharbor
..., it updates all referenced libraries in the project.
How I removed this error, by just removing import statements for nuget package from .csproj files.
To do so, right click on .csproj file, and open it in notepad and remove the statement.
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