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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...
What is an example of the simplest possible Socket.io example?
.../title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font: 13px Helvetica, Arial; }
form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
...
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...
What is a reasonable code coverage % for unit tests (and why)? [closed]
...eting priorities, code coverage races to 0%. We need a required number in order to build the unit testing habit within the team. I came to this question looking for some guidance on determining that number for an area I am not very familiar with, and this is really no help at all. I'm glad people...
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...
What is the most robust way to force a UIView to redraw?
...answer with more details. Trying to force the drawing system to run out of order by calling methods the documentation explicitly says not to call is not robust. At best it is undefined behavior. Most likely it will degrade performance and drawing quality. At worst it could deadlock or crash.
...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...cle (and I believe a version of this also appeared in CACM) shows how link order and OS environment size changes alone were sufficient to shift performance significantly. They attribute this to alignment of "hot loops".
This paper, titled "Producing wrong data without doing anything obviously wron...
Perl build, unit testing, code coverage: A complete working example
...age analysis, try this:
Build testcover
And you'll see something on the order of this:
t\HelloPerlBuildWorld....ok
All tests successful.
Files=1, Tests=18, 12 wallclock secs ( 0.00 cusr + 0.00 csys = 0.00 CPU)
cover
Reading database from D:/Documents and Settings/LeuchKW/workspace/HelloPerlBui...
Microsecond timing in JavaScript
...volve looping, you cannot gain access to the value of console.timeEnd() in order to add your timer results together. You can, but it get gets nasty because you have to inject the value of your iterating variable, such as i, and set a condition to detect if the loop is done.
Here is an example becau...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...ostreams to OS-specific I/O APIs and custom buffer management does give an order of magnitude improvement.
4 Answers
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