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Import multiple csv files into pandas and concatenate into one DataFrame
...like an old fashioned aka manual way of doing things, esp. as the Hapood ecosystem has growing list of tools where you can perform sql queries directly on many different directories containing different file types (csv, json, txt, databases) as if it was one data source. There must be something si...
uint8_t can't be printed with cout
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It doesn't really print a blank, but most probably the ASCII character with value 5, which is non-printable (or invisible). There's a number of invisible ASCII character codes, most of them below value 32, which is the blank actually.
You have to convert aa to u...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
Since setting up my development environments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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从异构软件开发者的角度看异构计算 - 操作系统(内核) - 清泛网 - 专注C/C++...
从异构软件开发者的角度看异构计算越来越多的人正在关注异构计算，为了发表一点个人理解和看法，本文将从一个开发者的角度阐述一下自己的观点。期待大家的批评指正。异构计算...越来越多的人正在关注异构计算，为了发...
How to write binary data to stdout in python 3?
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import os
os.write(1, a.tostring())
or, os.write(sys.stdout.fileno(), …) if that's more readable than 1 for you.
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impro...
Citrix服务器虚拟化：XenApp 6.5发布服务器上的应用程序 - 更多技术 - 清泛...
...盘空间。此交付方法支持瘦客户端。如果应用程序带有与操作系统紧密交互的组件（例如 .NET framework），则此方法非常有效。 场服务器需要有足够的资源来支持应用程序。用户必须连接到服务器或网络才能运行应用程序（不能...
How to make the hardware beep sound in Mac OS X 10.6
I just want that Mac OS X 10.6 does a hardware beep sound like in open suse and other distributions. I tried following approaches
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Subprocess changing directory
...change another process's working directory (again, at least on a UNIX-like OS, but as well on Windows), this call will have the subshell change its dir and exit immediately.
What you want can be achieved with os.chdir() or with the subprocess named parameter cwd which changes the working directory ...
Library not loaded: libmysqlclient.16.dylib error when trying to run 'rails server' on OS X 10.6 wit
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For those who are curious what's going on, this command makes a symbolic link from the second location to the first. When the gem looks for the MySQL client library under /usr/lib, that link will resolve to the location where it's ...
Any way to clear python's IDLE window?
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The "cls" and "clear" are commands which will clear a terminal (ie a DOS prompt, or terminal window). From your screenshot, you are using the shell within IDLE, which won't be affected by such things. Unfortunately, I don't think there is a way to clear the screen in IDLE. The best you could...