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Reloading module giving NameError: name 'reload' is not defined
...ave already imported in Python 3. I know that you only need to import once and executing the import command again won't do anything.
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Why does PostgreSQL perform sequential scan on indexed column?
...Also, a sequential scan can request several pages from the heap at a time, and ask the kernel to be fetching the next chunk while it works on the current one- an index scan fetches one page at once. (A bitmap scan does a compromise between the two, you usually see that appearing in a plan for querie...
Changing the maximum length of a varchar column?
...olumn from 255 characters to 500 without losing the contents. I've dropped and re-created tables before but I've never been exposed to the alter statement which is what I believe I need to use to do this. I found the documentation here: ALTER TABLE (Transfact-SQL) however I can't make heads or tai...
Android Fragment no view found for ID?
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This error also occurs when having nested Fragments and adding them with getSupportFragmentManager() instead of getChildFragmentManager().
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Delete directory with files in it?
...ons available nowadays.
Before deleting the folder, delete all its files and folders (and this means recursion!). Here is an example:
public static function deleteDir($dirPath) {
if (! is_dir($dirPath)) {
throw new InvalidArgumentException("$dirPath must be a directory");
}
if...
Prevent onmouseout when hovering child element of the parent absolute div WITHOUT jQuery
...tion onMouseOut(event) {
//this is the original element the event handler was assigned to
var e = event.toElement || event.relatedTarget;
if (e.parentNode == this || e == this) {
return;
}
alert('MouseOut');
// handle mouse event here!
}
document...
No module named pkg_resources
I'm deploying a Django app to a dev server and am hitting this error when I run pip install -r requirements.txt :
34 Answe...
How to find all the subclasses of a class given its name?
...'s module hasn't been imported yet - then that subclass doesn't exist yet, and __subclasses__ won't find it.
You mentioned "given its name". Since Python classes are first-class objects, you don't need to use a string with the class's name in place of the class or anything like that. You can just...
How to Convert all strings in List to lower case using LINQ?
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And string is immutable :P
– Sherlock
Jul 29 '16 at 10:03
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How do I enable file editing in Visual Studio's debug mode?
...nce. I have to stop debugging to edit files. Very annoying.
I enabled Edit and Continue. Same result.
I disabled Edit and Continue - Same result.
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