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Why does Python code use len() function instead of a length method?
...rable.
See Emulating container types for more information.
Here's a good read on the subject of protocols in Python: Python and the Principle of Least Astonishment
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How to write a simple database engine [closed]
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If you're good at reading code, studying SQLite will teach you a whole boatload about database design. It's small, so it's easier to wrap your head around. But it's also professionally written.
http://sqlite.org/
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jQuery: how to change title of document during .ready()?
...ested layouts in Ruby on Rails, and in one of the layouts i have a need to read in a string from a div and set that as the title of the document. What is correct way (if any) to set the title of the document?
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How to set environment variable for everyone under my linux system?
...shell, or as a non-interactive
shell with the --login option, it
first reads and executes commands from
the file /etc/profile, if that file
exists. After reading that file, it
looks for ~/.bash_profile,
~/.bash_login, and ~/.profile, in that
order, and reads and executes commands
fro...
Spring RestTemplate timeout
...turn restTemplateBuilder
.setConnectTimeout(...)
.setReadTimeout(...)
.build();
}
}
For Spring Boot <= 1.3
@Configuration
public class AppConfig
{
@Bean
@ConfigurationProperties(prefix = "custom.rest.connection")
public HttpComponentsClientHtt...
How can I access the MySQL command line with XAMPP for Windows?
... mysql), else it would not see mysql.exe (yes, I had done the cd command already).
– dotNET
Nov 29 '19 at 18:46
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Python: How would you save a simple settings/config file?
... 3.x
from configparser import ConfigParser
config = ConfigParser()
config.read('config.ini')
config.add_section('main')
config.set('main', 'key1', 'value1')
config.set('main', 'key2', 'value2')
config.set('main', 'key3', 'value3')
with open('config.ini', 'w') as f:
config.write(f)
The file f...
MySQL vs MongoDB 1000 reads
... (the actual binary json document)
So a b-tree lookup, and a binary page read. Log(n) + 1 IOs. If the indexes can reside entirely in memory, then 1 IO.
In MySQL with 20 tables, you have to perform:
One index lookup on the root table (again, assuming the entity is fetched by id)
With a clustered...
Why is i++ not atomic?
... which uses the ll and sc: load-linked, and store-conditional. Load-linked reads the word, and store-conditional stores the new value if the word has not changed, or else it fails (which is detected and causes a re-try).
sha...
Build a simple HTTP server in C [closed]
...tpd. If you want to write it from scratch, then you'll want to thoroughly read RFC 2616. Use BSD sockets to access the network at a really low level.
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