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Any reason not to use '+' to concatenate two strings?
A common antipattern in Python is to concatenate a sequence of strings using + in a loop. This is bad because the Python interpreter has to create a new string object for each iteration, and it ends up taking quadratic time. (Recent versions of CPython can apparently optimize this in some cases, b...
Is it possible to search for a particular filename on GitHub?
...intitle:, i.e. I want to find where's located the file simple_spinner_item.xml in Android's source code hosted on github, so I search on Google this string:
site:github.com intitle:simple_spinner_item.xml github.com/android
^ ^ ^
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How do I export a project in the Android studio?
... add this in application tag android:debuggable="false" of AndroidManifest.xml
– Ajay S
Jan 19 '14 at 19:15
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What do I use for a max-heap implementation in Python?
Python includes the heapq module for min-heaps, but I need a max heap. What should I use for a max-heap implementation in Python?
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Viewing all defined variables [duplicate]
I'm currently working on a computation in python shell. What I want to have is Matlab style listout where you can see all the variables that have been defined up to a point (so I know which names I've used, their values and such).
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快速开发CSS的利器LESS 系列教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...是在CSS代码当中再书写CSS代码（也就是样式中的样式），对于一些会在样式表中重复使用的样式规则，使用样式的嵌套方式进行书写。
简单的理解，混入是什么呢？比如在网页当中有多处的标题，一部分标题共同拥有一个特点...
How to sign an android apk file
...ng: META-INF/---.SF
adding: META-INF/---.RSA
signing: AndroidManifest.xml
.....
signing: classes.dex
signing: lib/commons-codec-1.6.jar
signing: lib/armeabi/libkonyjsvm.so
jar signed.
Warning:
No -tsa or -tsacert is provided and this jar is not timestamped. Without a timestamp, user...
How to get svn remote repository URL?
...RL for your working copy, you can run the following PowerShell snippet:
([xml](svn info --xml)).info.entry.URL
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How to change a django QueryDict to Python Dict?
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In Django 1.8 on Python 3 all I needed was dict(queryDict).
– fmalina
May 15 '15 at 19:16
1
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Cannot install Lxml on Mac os x 10.9
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@PLPeeters Which version of python are you running and which OS version?
– robinsj
Sep 14 '15 at 8:41
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