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What is the equivalent of MATLAB's repmat in NumPy
...umpy equivalent of repmat(a, m, n) is tile(a, (m, n)).
This works with multiple dimensions and gives a similar result to matlab. (Numpy gives a 3d output array as you would expect - matlab for some reason gives 2d output - but the content is the same).
Matlab:
>> repmat([1;1],[1,1,1])
ans...
Nested defaultdict of defaultdict
Is there a way to make a defaultdict also be the default for the defaultdict? (i.e. infinite-level recursive defaultdict?)
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How to correct TypeError: Unicode-objects must be encoded before hashing?
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To store the password (PY3):
import hashlib, os
password_salt = os.urandom(32).hex()
password = '12345'
hash = hashlib.sha512()
hash.update(('%s%s' % (password_salt, password)).encode('utf-8'))
password_hash = hash.hexdigest()
...
Dealing with float precision in Javascript [duplicate]
...n javascript. I want to group them by rounding them down to the nearest multiple of x and convert the result to a string.
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Exif manipulation library for python [closed]
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Although technically doesn't allow writing EXIF tags, I found this very useful. +1 for writing code.
– Cerin
May 11 '11 at 17:47
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Postgresql - unable to drop database because of some auto connections to DB
...d(pid)
FROM pg_stat_activity
WHERE datname = current_database() AND pid <> pg_backend_pid();
On older versions pid was called procpid so you'll have to deal with that.
Since you've revoked CONNECT rights, whatever was trying to auto-connect should no longer be able to do so.
You'll now be a...
Select multiple columns in data.table by their numeric indices
How can we select multiple columns using a vector of their numeric indices (position) in data.table ?
5 Answers
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Update a submodule to the latest commit
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@KR29 right, and the full cmd is git push <remote> <branch>, e.g. git push origin dev.
– Kjuly
Apr 9 '16 at 2:31
2
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Why is JSHINT complaining that this is a strict violation?
...pass the object as a parameter:
function gotoPage(sorter, s) {
if (s <= sorter.d && s > 0) {
sorter.g = s;
sorter.page((s - 1) * sorter.p.size);
}
}
function pageChange(event, sorter) {
var dd = event.currentTarget;
gotoPage(sorter, dd[dd.selectedInde...
Where's my JSON data in my incoming Django request?
...to Django, I think you want request.body (request.raw_post_data on Django < 1.4). This will give you the raw JSON data sent via the post. From there you can process it further.
Here is an example using JavaScript, jQuery, jquery-json and Django.
JavaScript:
var myEvent = {id: calEvent.id, star...