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instantiate a class from a variable in PHP?
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This is how I do it. Note that from within classes you can use parent and self.
– Ross
Feb 10 '09 at 20:55
1
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Is ServiceLocator an anti-pattern?
...tory. We'll never instantiate MyRepository and MyService. We get instances from Ctor params (like from ServiceLocator) and use them. Don't we?
– davidoff
Apr 1 '14 at 20:47
33
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How to divide flask app into multiple py files?
...age>')
def show(page):
# stuff
And then use it in the main part:
from yourapplication.simple_page import simple_page
app = Flask(__name__)
app.register_blueprint(simple_page)
Blueprints can also bundle specific resources: templates or static files. Please refer to the Flask docs for all...
How do I download a package from apt-get without installing it? [closed]
...stall some programs in it via USB memory, but how can I download a program from apt-get without installing it?
3 Answers
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Create a .csv file with values from a Python list
I am trying to create a .csv file with the values from a Python list. When I print the values in the list they are all unicode (?), i.e. they look something like this
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What does the 'b' character do in front of a string literal?
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Actually, if you've imported unicode_literals from __future__, this will "reverse" the behavior for this particular string (in Python 2.x)
– Romuald Brunet
Mar 14 '13 at 16:27
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BaseException.message deprecated in Python 2.6
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Solution - almost no coding needed
Just inherit your exception class from Exception and pass the message as the first parameter to the constructor
Example:
class MyException(Exception):
"""My documentation"""
try:
raise MyException('my detailed description')
except MyException as my:
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Convert from List into IEnumerable format
...c IEnumerable<Book> GetBooks()
{
List<Book> books = FetchEmFromSomewhere();
return books;
}
as well as:
public void ProcessBooks(IEnumerable<Book> books)
{
// do something with those books
}
which could be invoked:
List<Book> books = FetchEmFromSomewhere...
Why use AJAX when WebSockets is available?
...curity, parallelism, error handling, etc). Regarding performance, although from-scratch raw large file transfer speed would be similar, browsers have had years to finely tune caching of web content (much of which applies to AJAX requests) so in practice, switching from AJAX to WebSockets is unlikely...
Streaming Audio from A URL in Android using MediaPlayer?
...streaming". In all my testing I was unable to get a 2.1 device to stream from a shoutcast server directly. I believe that the issue is that shoutcast servers return a protocol of ICY/1.1 rather than HTTP/1.1 and the media player trips up on this as it doesn't know how to respond to that content.
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