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How to backup a local Git repository?
...keep 3 backups for a repo - like rotate...)
# - TESTING
# allow calling from other scripts
def git_backup
# constants:
git_dir_name = '.git' # just to avoid magic "strings"
filename_suffix = ".git.bundle" # will be added to the filename of the created backup
# Test if we are ins...
How do I vertically align text in a div?
...browsers (Internet Explorer 6/7) into styles with using # to hide styles from newer browsers:
div { border:1px solid green;}
<div style="display: table; height: 400px; #position: relative; overflow: hidden;">
<div style=
"#position: absolute; #top: 50%;display: table-cell; v...
Is List a subclass of List? Why are Java generics not implicitly polymorphic?
...al to it safely, but you don't know anything about what might be retrieved from it, because it could be a List<Object>.
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What is the result of % in Python?
...
The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type. A zero right argument raises the ZeroDivisionError exception. The arguments may be floating point numbers, e.g...
Handling specific errors in JavaScript (think exceptions)
...
To create custom exceptions, you can inherit from the Error object:
function SpecificError () {
}
SpecificError.prototype = new Error();
// ...
try {
throw new SpecificError;
} catch (e) {
if (e instanceof SpecificError) {
// specific error
} else {
thr...
Detect whether there is an Internet connection available on Android [duplicate]
...al, captive portals, content filters and the like can all prevent your app from reaching a server. For instance you can't tell for sure if your app can reach Twitter until you receive a valid response from the Twitter service.
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What does OSGi solve?
...ndles: the OSGi components. Bundles are modules. They hide their internals from other bundles and communicate through well defined services. Hiding internals means more freedom to change later. This not only reduces the number of bugs, it also makes bundles simpler to develop because correctly sized...
When does a process get SIGABRT (signal 6)?
...arios where a process gets a SIGABRT in C++? Does this signal always come from within the process or can this signal be sent from one process to another?
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SVN Repository Search [closed]
...rge.net/projects/svn-search.
There is also a Windows application directly from the SVN home called SvnQuery available at http://svnquery.tigris.org
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Use numpy array in shared memory for multiprocessing
...rray
with shared_arr.get_lock(): # synchronize access
arr = np.frombuffer(shared_arr.get_obj()) # no data copying
arr[i] = -arr[i]
Example
import ctypes
import logging
import multiprocessing as mp
from contextlib import closing
import numpy as np
info = mp.get_logger().info...