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How to find out which processes are using swap space in Linux?
...ho caused most pages to be swapped out.
For the first you may run top and order by swap (press 'Op'), for the latter you can run vmstat and look for non-zero entries for 'so'.
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How do I get indices of N maximum values in a NumPy array?
...copy of an array from unconstrained min to unconstrained max in a reversed order)
– FizBack
Oct 19 '16 at 13:51
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How to create a MySQL hierarchical recursive query
...
name,
parent_id
from (select * from products
order by parent_id, id) products_sorted,
(select @pv := '19') initialisation
where find_in_set(parent_id, @pv)
and length(@pv := concat(@pv, ',', id))
Here is a fiddle.
Here, the value specified in @pv := '19...
How to clear Facebook Sharer cache?
...the URL of the page you want to share, and click "debug". It will automatically extract all the info on your meta tags and also clear the cache.
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Good ways to sort a queryset? - Django
...
What about
import operator
auths = Author.objects.order_by('-score')[:30]
ordered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets...
Convert Object to JSON string
...
jQuery does only make some regexp checking before calling the native browser method window.JSON.parse(). If that is not available, it uses eval() or more exactly new Function() to create a Javascript object.
The opposite of JSON.parse() is JSON.stringify() which serializes a...
What is the difference between Numpy's array() and asarray() functions?
...ut will be returned uncopied iff it's a compatible ndarray in contiguous C order (copy=False, order='C').
asfortranarray: The input will be returned uncopied iff it's a compatible ndarray in contiguous Fortran order (copy=False, order='F').
require: The input will be returned uncopied iff it's compa...
String length in bytes in JavaScript
... variable that can result in a mismatch. UTF-8 should be the network-byte-order of character encodings.
– Mike Samuel
Apr 1 '11 at 21:34
4
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How to join components of a path when you are constructing a URL in Python
...ng for a simple way to join them:
>>> url = 'https://api.foo.com/orders/bartag?spamStatus=awaiting_spam&page=1&pageSize=250'
Doing some looking around:
>>> split = urlparse.urlsplit(url)
>>> split
SplitResult(scheme='https', netloc='api.foo.com', path='/orders/...
What does character set and collation mean exactly?
...t if the collation is set to, for example, French, you'll have them in the order you thought they would be, which is all of e é è ê are equal, and then f.
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