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Python: How to get stdout after running os.system? [duplicate]
...e a memory error for larger tasks. Reference for this problem here. So, in order to get the output of the os.system command I used this workaround:
import os
batcmd = 'dir'
result_code = os.system(batcmd + ' > output.txt')
if os.path.exists('output.txt'):
fp = open('output.txt', "r")
ou...
Git commits are duplicated in the same branch after doing a rebase
...ev". If this is the case, then why do C5 and C6 show up before C7 in the ordering of commits on origin/dev?
– KJ50
Nov 5 '14 at 5:34
...
Google Maps v3 - limit viewable area and zoom level
...t was launched on February 14, 2019, you can use new restriction option in order to limit the viewport of the map.
According to the documentation
MapRestriction interface
A restriction that can be applied to the Map. The map's viewport will not exceed these restrictions.
source: https://developers...
Quickly find whether a value is present in a C array?
...
Keep the table in sorted order, and use Bentley's unrolled binary search:
i = 0;
if (key >= a[i+512]) i += 512;
if (key >= a[i+256]) i += 256;
if (key >= a[i+128]) i += 128;
if (key >= a[i+ 64]) i += 64;
if (key >= a[i+ 32]) i += 32...
StringIO in Python3
...
In order to make examples from here
work with Python 3.5.2, you can rewrite as follows :
import io
data =io.BytesIO(b"1, 2, 3\n4, 5, 6")
import numpy
numpy.genfromtxt(data, delimiter=",")
The reason for the change may be tha...
How to make a great R reproducible example
...ermutation of some values : x <- sample(1:10) for vector 1:10 in random order.
a random factor : x <- sample(letters[1:4], 20, replace = TRUE)
For matrices, one can use matrix(), eg :
matrix(1:10, ncol = 2)
Making data frames can be done using data.frame(). One should pay attention to nam...
Reduce, fold or scan (Left/Right)?
...alue. Will always result a single value.
Scan is used for some processing order of items from left or right hand side, then we can make use of previous result in subsequent calculation. That means we can scan items. Will always result a collection.
LEFT_REDUCE method works similar to REDUCE Metho...
android get all contacts
... = {}; //Selection criteria
String sortOrder = null; //The sort order for the returned rows
return new CursorLoader(
getApplicationContext(),
contactsUri,
projection,
...
How do you serialize a model instance in Django?
...h trying to serialize a single object, not a list of objects. That way, in order to get rid of different hacks, just use Django's model_to_dict (if I'm not mistaken, serializers.serialize() relies on it, too):
from django.forms.models import model_to_dict
# assuming obj is your model instance
dic...
Can I use a :before or :after pseudo-element on an input field?
...
Nice option to go with in order to solve the problem.
– Jester
May 30 '19 at 16:13
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