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How to get the parents of a Python class?
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If you want all the ancestors rather than just the immediate ones, use inspect.getmro:
import inspect
print inspect.getmro(cls)
Usefully, this gives you all ancestor classes in the "method resolution order" -- i.e. the order in which ...
How do I get the path of the current executed file in Python?
...ike a newbie question, but it is not. Some common approaches don't work in all cases:
13 Answers
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Entity Framework 5 Updating a Record
...lly leave your business logic alone after adding a new field to your Users table and to your View.
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Best way to require all files from a directory in ruby?
What's the best way to require all files from a directory in ruby ?
11 Answers
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Understanding the difference between __getattr__ and __getattribute__
...oesn't explicitly manage and do that via __getattr__ method.
Python will call this method whenever you request an attribute that hasn't already been defined, so you can define what to do with it.
A classic use case:
class A(dict):
def __getattr__(self, name):
return self[name]
a = A()...
Compare double to zero using epsilon
...0000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000000 00000000 00000001 × 2^0 = 1 + 2^-52
Therefore:
epsilon = (1 + 2^-52) - 1 = 2^-52
Are there any numbers between 0 and epsilon? Plenty... E.g. the m...
How many random elements before MD5 produces collisions?
...ase they could probably figure out the credit card numbers using a rainbow table ...
– Sam Saffron
May 4 '09 at 2:42
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Store pictures as files or in the database for a web app?
...ed images (and all kinds of binary documents) as image columns in database tables.
The advantage of having files stored in the database is obviously that you do not end up with unreferenced files on the harddisk if a record is deleted, since synchronization between database (= meta data) and harddi...
Is there a Python caching library?
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Ah, I kept searching for this and all I found was a wiki that mentioned how to use it as an WSGI middleware. It looks like what I need, thank you.
– Stavros Korokithakis
Sep 15 '09 at 14:20
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Is there a job scheduler library for node.js? [closed]
...ter termination of nodejs process, all jobs will be lost. There is no cron table shipped with node-cron
– Upvote
Apr 24 '14 at 10:06
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