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What is a clean, pythonic way to have multiple constructors in Python?
...sing __new__.
This could be used if the type of initialization cannot be selected based on the type of the constructor argument, and the constructors do not share code.
Example:
class MyClass(set):
def __init__(self, filename):
self._value = load_from_file(filename)
@classmeth...
Does Python have a ternary conditional operator?
... This one emphasizes the primary intent of the ternary operator: value selection. It also shows that more than one ternary can be chained together into a single expression.
– Roy Tinker
Oct 4 '10 at 21:14
...
How do I generate a random int number?
...SEED.This SEED is the beginning point, the trigger which instigates him to select the RANDOM value.
Now if a SEED is easy to guess then those kind of random numbers are termed as PSEUDO and when a seed is difficult to guess those random numbers are termed SECURED random numbers.
For example a perso...
PHP exec() vs system() vs passthru()
...ed restrictions, such as selinux. But a well set-up system will have those selectively off. Of course a shared host is a different story, but you won't offer a shared environment to esteemed clients either, no?
– Christian
Sep 18 '11 at 10:01
...
Numpy where function multiple conditions
I have an array of distances called dists. I want to select dists which are between two values. I wrote the following line of code to do that:
...
How can I launch multiple instances of MonoDevelop on the Mac?
...e a solution already open, and the checkbox only appears when you actually select a solution or project in the dialog.
– Mikayla Hutchinson
Oct 14 '10 at 23:08
...
Restore a postgres backup file using the command line?
...ith pg_restore(1) to
rebuild the database. They allow
pg_restore to be selective about what
is restored, or even to reorder the
items prior to being restored. The
archive file formats are designed to
be portable across architectures.
So depends on the way it was dumped out. You can...
Retrieve database or any other file from the Internal Storage using run-as
... procedure below:
search and open device file explorer
Select your handset and then browse to data/data directory
Now find your application package and go to databases folder. You can see the databases there and upon right click, you will get option
to save this in...
Renaming a virtualenv folder without breaking it
...ate_this.py instead of using the
location of the Python interpreter to
select the environment.
Note: you must run this after you've
installed any packages into the
environment. If you make an
environment relocatable, then install
a new package, you must run virtualenv
--relocatabl...
Status bar and navigation bar appear over my view's bounds in iOS 7
...7 SDK. Please add the following code to achieve this,
if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
self.edgesForExtendedLayout = UIRectEdgeNone;
You need to add the above in your -(void)viewDidLoad method.
iOS 7 brings several changes to how you layout and customiz...