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Make sure only a single instance of a program is running
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The following code should do the job, it is cross-platform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available...
Why do people use Heroku when AWS is present? What distinguishes Heroku from AWS? [closed]
...rth it. AWS also comes with many plugin services and products.
Heroku
Platform as a Service (PAAS)
Good documentation
Has built-in tools and architecture.
Limited control over architecture while designing the app.
Deployment is taken care of (automatic via GitHub or manual via git commands or C...
Storing time-series data, relational or non?
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@Buchi. I use Sybase ASE. But this is not a platform issue (sure, the high platforms provide performance that is orders of magnitude better than the low end; three orders of magnitude better than Oracle, but that is not the point), erection of the chart from the table ...
C++ wait for user input [duplicate]
...or linux, use pause() from unistd.h. pause command exist only on microsoft platform and few pdp or dos related ones. Some distros have it as alias declared
– Swift - Friday Pie
Feb 2 '17 at 14:31
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How do I copy a string to the clipboard on Windows using Python?
...and ctypes seem to be an overkill for this simple task. Tkinter is a cross-platform GUI framework, which ships with Python by default and has clipboard accessing methods along with other cool stuff.
If all you need is to put some text to system clipboard, this will do it:
from Tkinter import Tk
r ...
What does the Visual Studio “Any CPU” target mean?
I have some confusion related to the .NET platform build options in Visual Studio 2008.
8 Answers
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...以忽略。
正则表达式到底是什么东西？
字符是计算机软件处理文字时最基本的单位，可能是字母，数字，标点符号，空格，换行符，汉字等等。字符串是0个或更多个字符的序列。文本也就是文字，字符串。说某个字符串匹配...
How can I distribute python programs?
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I highly recommend Pyinstaller, which supports all major platforms pretty seamlessly. Like py2exe and py2app, it produces a standard executable on Windows and an app bundle on OS X, but has the benefit of also doing a fantastic job of auto-resolving common dependencies and includi...
specify project file of a solution using msbuild
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msbuild test.sln /t:project /p:Configuration="Release" /p:Platform="x86" /p:BuildProjectReferences=false
Notice that what is assigned to /t is the project name in the solution, it can be different from the project file name.
Also, as stated in How to: Build specific targets in so...
How do I turn a String into a InputStreamReader in java?
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You might want to inherit the platform's default charset.
– slim
Oct 29 '08 at 15:21
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