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Auto reloading python Flask app upon code changes
...xport FLASK_APP=main.py
$ export FLASK_ENV=development
$ flask run
or in one command:
$ FLASK_APP=main.py FLASK_ENV=development flask run
If you want different port than the default (5000) add --port option.
Example:
$ FLASK_APP=main.py FLASK_ENV=development flask run --port 8080
More optio...
Rename MySQL database [duplicate]
...do this. I think you'll need to dump that database, create the newly named one and then import the dump.
If this is a live system you'll need to take it down. If you cannot, then you will need to setup replication from this database to the new one.
If you want to see the commands to do this, @ja...
How to draw polygons on an HTML5 canvas?
...
There are a few ways to get what you want. One option is to use the built in cxt.rotate() method [along with cxt.save() and cxt.restore()] to rotate parts of the canvas. Alternatively, adding a consistent value to the cos and sin functions will also work. See this jsf...
Bootstrap modal appearing under background
...r.
Make sure the modal container and all of its parent elements are positioned the default way to fix the problem.
Here are a couple ways to do this:
Easiest way is to just move the modal div so it is outside any elements with special positioning. One good place might be just before the closing...
Child with max-height: 100% overflows parent
...r the child's max-height to be calculated from, so max-height computes to none, allowing the child to be as tall as possible. The only other constraint acting on the child now is the max-width of its parent, and since the image itself is taller than it is wide, it overflows the container's height do...
Checking the equality of two slices
...mparing values of type []byte.
func testEq(a, b []Type) bool {
// If one is nil, the other must also be nil.
if (a == nil) != (b == nil) {
return false;
}
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
retur...
How to center a subview of UIView
...iew m and I want the inner UIView to be always centered inside the outer one, without it having to resize the width and height.
...
Python - write() versus writelines() and concatenated strings
...writelines() was introduced later as a counterpart of readlines(), so that one could easily write the file content that was just read via readlines():
outfile.writelines(infile.readlines())
Really, this is the main reason why writelines has such a confusing name. Also, today, we do not really wan...
Stock ticker symbol lookup API [closed]
...t support fuzzy search anymore, it can only lookup "Exactly" symbol. :( Anyone has the workaround or any hidden parameter to turn on the fuzzy search feature?
– Jonathan Chen
Oct 10 '15 at 21:59
...
Chrome sendrequest error: TypeError: Converting circular structure to JSON
...d document.body.ownerDocument refers back to document again, which is only one of multiple circular references in the DOM tree.
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