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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
...lier without success, but perhaps something else was wrong. Trying it just now again, then re-creating the situation with another user, I found that this did in fact do the trick. Of course, the formal answer today was "not to be stupid" and to use REVOKE and DROP USER to do it right. I'm indebted t...
Parsing XML with namespace in Python via 'ElementTree'
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@Bludwarf: The docs do mention it (now, if not when you wrote that), but you have to read them verrrry carefully. See the Parsing XML with Namespaces section: there's an example contrasting the use of findall without and then with the namespace argument, but t...
How to set up a git project to use an external repo submodule?
...ctory named externals/jquery* and link it to the github jquery repository. Now we just need to init the submodule and clone the code to it:
git submodule update --init --recursive
You should now have all the latest code cloned into the submodule. If the jquery repo changes and you want to pull t...
How do I subtract minutes from a date in javascript?
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Once you know this:
You can create a Date by calling the constructor with milliseconds since Jan 1, 1970.
The valueOf() a Date is the number of milliseconds since Jan 1, 1970
There are 60,000 milliseconds in a minute :-]
...it isn'...
Maven does not find JUnit tests to run
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Note that the surefire documentation now claims that **/*Tests.java is a default include!
– Gareth
Oct 13 '17 at 9:54
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Selecting multiple columns in a pandas dataframe
I have data in different columns but I don't know how to extract it to save it in another variable.
18 Answers
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Getting indices of True values in a boolean list
...tches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return the position of the first occurrence of True (this is just a portion of my code):
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Handling optional parameters in javascript
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You can know how many arguments were passed to your function and you can check if your second argument is a function or not:
function getData (id, parameters, callback) {
if (arguments.length == 2) { // if only two arguments were s...
What is the relationship between Looper, Handler and MessageQueue in Android?
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It's widely known that it's illegal to update UI components directly from threads other than main thread in android. This android document (Handling Expensive Operations in the UI Thread) suggests the steps to follow if we need to start a...
How to change Android Studio's editor font?
Right now I am using the Darcula theme. I want to change the default font to something else. I go into Editor > Colors & Fonts > Font but all the options are greyed out. For Editor Font it shows Show only monospaced fonts as checked with Primary font as Monospaced, but neither o...