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Syntax behind sorted(key=lambda: …)
...da function, or if its a particular element in a nested list, tuple, dict, etc., again determined by the lambda function.
Lets try and predict what happens when I run the following code.
mylist = [(3, 5, 8), (6, 2, 8), ( 2, 9, 4), (6, 8, 5)]
sorted(mylist, key=lambda x: x[1])
My sorted call obv...
What are fail-safe & fail-fast Iterators in Java
...ific implementations (i.e. the specific collection iterator() / elements() etc methods that return these objects) that specify the behavior. 2) Typical Enumeration implementations are neither fail-fast or fail-safe.
– Stephen C
Feb 5 '16 at 22:56
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How to discard local commits in Git?
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@littletiger git does not track folders, only files and their paths. Therefore, it will completely ignore empty folders (folders with no files, or only ignored files). They don't show up anywhere as there is nothing to go in them.
– Mumbleskates
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How can I pretty-print JSON in a shell script?
... "lorem", "bar": "ipsum"}' | python -m json.tool
or, if the JSON is in a file, you can do:
python -m json.tool my_json.json
if the JSON is from an internet source such as an API, you can use
curl http://my_url/ | python -m json.tool
For convenience in all of these cases you can make an alias...
What blocks Ruby, Python to get Javascript V8 speed? [closed]
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There are lots of well-known techniques (JIT, modern garbage collector, etc) that could be used to speed up the CPython implementation but all would require substantial changes to the API, breaking most of the extensions in the process. CPython would be faster, but a lot of what makes Python so ...
What is going wrong when Visual Studio tells me “xcopy exited with code 4”
...ed Common Properties: "Startup Project; Project Dependencies; Debug Source Files; Code Analysis Settings". Listed Configuration Properties: "configuration".
– Raven Dreamer
Apr 11 '11 at 19:53
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Execute unit tests serially (rather than in parallel)
...
For .NET Core projects, you can configure xUnit with an xunit.runner.json file, as documented at https://xunit.github.io/docs/configuring-with-json.html.
The setting you need to change to stop parallel test execution is parallelizeTestCollections, which defaults to true:
Set this to true if th...
Environment variables for java installation
...(== environment variables of type user variables)
JAVA_HOME : C:\Program Files\Java\jdk1.8.0_112
JDK_HOME : %JAVA_HOME%
JRE_HOME : %JAVA_HOME%\jre
CLASSPATH : .;%JAVA_HOME%\lib;%JAVA_HOME%\jre\lib
PATH : your-unique-entries;%JAVA_HOME%\bin (make sure that the longish your-unique-entries doe...
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...ir tokens is instant.
So you want to use the Twitter v1.1 API?
Note: the files for these are on GitHub.
Version 1.0 will soon be deprecated and unauthorised requests won't be allowed. So, here's a post to help you do just that, along with a PHP class to make your life easier.
1. Create a develope...
CGridCellNumeric - A numeric cell class for the MFC Grid - C/C++ - 清...
...igurable for integers, floating point, or currencies.
Download source files - 7.34 Kb
Download demo project - 215 Kb
Introduction
I currently have had a need for a decent grid control that has the ability to edit and display numbers, among other things. The best one that I could come up wi...