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Sending data back to the Main Activity in Android
...en a child Activity is used to get user input - such as choosing a contact from a list or entering data in a dialog box. In this case you should use startActivityForResult to launch your child Activity.
This provides a pipeline for sending data back to the main Activity using setResult. The setResu...
Is there a way to get rid of accents and convert a whole string to regular letters?
...tter way for getting rid of accents and making those letters regular apart from using String.replaceAll() method and replacing letters one by one?
Example:
...
How to remove remote origin from Git repo
... This is the actual answer to the question "how to remove remote origin from git repo".
– baash05
Sep 10 '14 at 12:32
...
Asynchronous method call in Python?
...nchronously with:
apply_async(func[, args[, kwds[, callback]]])
E.g.:
from multiprocessing import Pool
def f(x):
return x*x
if __name__ == '__main__':
pool = Pool(processes=1) # Start a worker processes.
result = pool.apply_async(f, [10], callback) # Evaluate "f(10)" ...
Check if a program exists from a Makefile
How can I check if a program is callable from a Makefile?
12 Answers
12
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Which is faster in Python: x**.5 or math.sqrt(x)?
..., yet
Here's some timings (Python 2.5.2, Windows):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
1000000 loops, best of 3: 0.445 usec per loop
$ python -mtimeit -s"from math import sqrt; x = 123" "sqrt(x)"
1000000 loops, best of 3: 0.574 usec per loop
$ python -mtimeit -s"import ...
Error in Swift class: Property not initialized at super.init call
...
Quote from The Swift Programming Language, which answers your question:
“Swift’s compiler performs four helpful safety-checks to make sure
that two-phase initialization is completed without error:”
Safety check 1 ...
Converting from a string to boolean in Python?
Does anyone know how to do convert from a string to a boolean in Python? I found this link . But it doesn't look like a proper way to do it. I.e. using built-in functionality, etc.
...
How to make a cross-module variable?
...a variable to the __builtin__ module, it will be accessible as if a global from any other module that includes __builtin__ -- which is all of them, by default.
a.py contains
print foo
b.py contains
import __builtin__
__builtin__.foo = 1
import a
The result is that "1" is printed.
Edit: The _...
Git for beginners: The definitive practical guide
... simply a directory containing a special .git directory.
This is different from "centralised" version-control systems (like subversion), where a "repository" is hosted on a remote server, which you checkout into a "working copy" directory. With git, your working copy is the repository.
Simply run gi...