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What is Python buffer type for?
...> s = 'Hello world'
>>> t = buffer(s, 6, 5)
>>> t
<read-only buffer for 0x10064a4b0, size 5, offset 6 at 0x100634ab0>
>>> print t
world
The buffer in this case is a sub-string, starting at position 6 with length 5, and it doesn't take extra storage space - it re...
How can I send large messages with Kafka (over 15MB)?
...umer: Increase max.partition.fetch.bytes to receive larger messages.
(*) Read the comments to learn more about message.max.bytes<=replica.fetch.max.bytes
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How many double numbers are there between 0.0 and 1.0?
...e-11. Having good precision there is more useful than between 100 and 101. Read floating-point-gui.de for more information.
– Michael Borgwardt
Jun 5 '10 at 7:36
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Is Zookeeper a must for Kafka?
...s zookeeper so you need to first start a zookeeper server if
you don't already have one. You can use the convenience script
packaged with kafka to get a quick-and-dirty single-node zookeeper
instance.
As to why, well people long ago discovered that you need to have some way to coordinating t...
Most efficient way to remove special characters from string
...y one of the most efficient ways that you can do it.
You should of course read the character into a local variable or use an enumerator to reduce the number of array accesses:
public static string RemoveSpecialCharacters(this string str) {
StringBuilder sb = new StringBuilder();
foreach (cha...
psycopg2: insert multiple rows with one query
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Just confirmed this improvement myself. From what I've read psycopg2's executemany doesn't do anything optimal, just loops and does many execute statements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nelson
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How to complete a git clone for a big project on an unstable connection?
...I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some way to have a more failure-resistant git clone download?
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Using Razor, how do I render a Boolean to a JavaScript variable?
...thod, to string and to lower is definitely the cleanest in my option as it reads nicely in javascript.
– Frank Thomas
Apr 20 at 15:13
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What is the purpose of Flask's context stacks?
... to access various functionality. For example, you probably have code that reads...
from flask import request
Then, during a view, you might use request to access the information of the current request. Obviously, request is not a normal global variable; in actuality, it is a context local value....
count vs length vs size in a collection
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@DaveAbrahams - I never said that was the case. Read it again. I said it "tends to refer", I never even tried to make a specific statement that applied equally to all permutations of all collection classes in all languages.
– gbjbaanb
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