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How do I profile memory usage in Python?
... here: Python memory profiler
Basically you do something like that (cited from Guppy-PE):
>>> from guppy import hpy; h=hpy()
>>> h.heap()
Partition of a set of 48477 objects. Total size = 3265516 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
...
What's the difference between a single precision and double precision floating point operation?
..., cache, and bandwidth, thereby reducing the overall system performance.
From Webopedia:
The term double precision is something of a misnomer because the precision is not really double.
The word double derives from the fact that a double-precision number uses twice as many bits as a regular ...
Is it possible to read from a InputStream with a timeout?
...rns an estimate of the number of bytes that can be read (or skipped over)
from this input stream without blocking by the next invocation of a method for
this input stream.
An estimate is unavoidable due to timing/staleness. The figure can be a one-off underestimate because new data are constant...
How to retrieve an element from a set without removing it?
...equire copying the whole set:
for e in s:
break
# e is now an element from s
Or...
e = next(iter(s))
But in general, sets don't support indexing or slicing.
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...
How does this CSS produce a circle?
...border. If you set border-radius to 50 pixels then it would take 25 pixels from one side and 25 pixels from another side.
And taking 25 pixels from each side it would produce like this:
div{
width: 0px;
height: 0px;
border: 180px solid red;
border-radius: 0 50px 0 0;
}
Now se...
Save and load MemoryStream to/from a file
... Yes that is correct. The difference between them is that CopyTo copies from whatever the current position is instead of always from the begining like WriteTo does.
– AnorZaken
Sep 14 '15 at 19:33
...
How do I calculate percentiles with python/numpy?
...ues. Note N MUST BE already sorted.
@parameter percent - a float value from 0.0 to 1.0.
@parameter key - optional key function to compute value from each element of N.
@return - the percentile of the values
"""
if not N:
return None
k = (len(N)-1) * percent
f = m...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
...ents for Process. This is potentially better than using a global variable.
From the discussion page you linked, it appears that support for 64-bit Linux was added to sharedmem a while back, so it could be a non-issue.
I don't know about this one.
No. Refer to example below.
Example
#!/usr/bin/env...
What is the behavior difference between return-path, reply-to and from?
...an email list, that is going to send out the following RFC2822 content.
From: <coolstuff@mymailinglist.com>
To: <you@yourcompany.com>
Subject: Super simple email
Reply-To: <coolstuff-threadId=123@mymailinglist.com>
This is a very simple body.
Now, let's say you are going to ...
Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
...or days and finally tried to prevent caching since a lot of CFURL* objects from the internal framework were hanging around. Returning nil from willCacheResponse was the only thing that worked!
– Bron Davies
Sep 30 '10 at 19:37
...