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What is the most efficient way of finding all the factors of a number in Python?
...s will return all of the factors, very quickly, of a number n.
Why square root as the upper limit?
sqrt(x) * sqrt(x) = x. So if the two factors are the same, they're both the square root. If you make one factor bigger, you have to make the other factor smaller. This means that one of the two will ...
How do I load an org.w3c.dom.Document from XML in a string?
...me up with. It's mostly the same solution as before, augmented to get the root element down as a NodeList and using erickson's suggestion of using an InputSource instead for character encoding issues.
private String DOC_ROOT="root";
String xml=getXmlString();
Document xmlDoc=loadXMLFrom(xml);
Elem...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...的讨论。一位用户遇到了这个问题，并询问是否有人知道如何解决。其他用户提供了一些可能的解决方案，包括检查应用程序权限设置、确保手机上的权限设置正确、重新编译应用程序等。有人建议检查应用程序是否有读取短信...
How to extract a git subdirectory and make a submodule out of it?
...nstall
Usage
Split a larger into smaller chunks:
# Go into the project root
cd ~/my-project
# Create a branch which only contains commits for the children of 'foo'
git subtree split --prefix=foo --branch=foo-only
# Remove 'foo' from the project
git rm -rf ./foo
# Create a git repo for 'foo' (...
Find all files in a directory with extension .txt in Python
...file))
or if you want to traverse directory, use os.walk:
import os
for root, dirs, files in os.walk("/mydir"):
for file in files:
if file.endswith(".txt"):
print(os.path.join(root, file))
share
...
Executing JavaScript without a browser?
...);
$ ls -lAF /usr/bin/js /etc/alternatives/js /usr/bin/nodejs
lrwxrwxrwx 1 root root 15 Jul 16 04:26 /etc/alternatives/js -> /usr/bin/nodejs*
lrwxrwxrwx 1 root root 20 Jul 16 04:26 /usr/bin/js -> /etc/alternatives/js*
-rwxr-xr-x 1 root root 1422004 Apr 28 20:31 /usr/bin/nodejs*
$ chm...
Dependent DLL is not getting copied to the build output folder in Visual Studio
...Build errors were that Project A, B, C, Y, and X dlls could not be found.
Root cause was that newly created Project X targeted .NET 4.5 while the rest of the solution projects targeted .NET 4.5.1. Project X didn't build causing the rest of the Projects to not build either.
Make sure any newly add...
Update Git submodule to latest commit on origin
... branch
git checkout master
# Update
git pull
# Get back to your project root
cd ..
# Now the submodules are in the state you want, so
git commit -am "Pulled down update to submodule_dir"
Or, if you're a busy person:
git submodule foreach git pull origin master
...
Elegant setup of Python logging in Django
...quirements. The key thing is that I usually add the handlers I want to the root logger, using levels and sometimes logging.Filters to get the events I want to the appropriate files, console, syslogs etc. You can of course add handlers to any other loggers too, but there isn't commonly a need for thi...
How to find unused images in an Xcode project?
...re, and you just execute it from whatever directory you want to use as the root for searching for images (e.g. your project root folder). You can put it in ~/script/ for example and then go to your project root folder and run it by pointing to the script directly: ~/script/unused_images.sh
...