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How to keep environment variables when using sudo
...th sudo the environment variables are not there. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
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Keyboard Interrupts with python's multiprocessing Pool
...()
pool.join()
Explanation and full example code can be found at http://noswap.com/blog/python-multiprocessing-keyboardinterrupt/ and http://github.com/jreese/multiprocessing-keyboardinterrupt respectively.
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Combining node.js and Python
...rk that's similar to using TCP or Unix sockets, but it's much more robust (http://zguide.zeromq.org/py:all)
There's a library that uses zeroMQ to provide a RPC framework that works pretty well. It's called zeroRPC (http://www.zerorpc.io/). Here's the hello world.
Python "Hello x" server:
import ...
Concatenating two one-dimensional NumPy arrays
...is either "r_[...]" or "c_[...]" as shown in the example code beneath (see http://wiki.scipy.org/NumPy_for_Matlab_Users for additional information):
%pylab
vector_a = r_[0.:10.] #short form of "arange"
vector_b = array([1,1,1,1])
vector_c = r_[vector_a,vector_b]
print vector_a
print vector_b
print ...
How to compare type of an object in Python?
...this is a string", str) will return True.
You may also want to read this: http://www.canonical.org/~kragen/isinstance/
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javac not working in windows command prompt
...re totally different
if you don't have JDK pls download from this link
https://jdk.java.net/
or
http://www.oracle.com/technetwork/java/javase/downloads/index.html
reference thread for JDK VS JRE What is the difference between JDK and JRE?
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Should Gemfile.lock be included in .gitignore?
...
The Bundler docs address this question as well:
ORIGINAL: http://gembundler.com/v1.3/rationale.html
EDIT: http://web.archive.org/web/20160309170442/http://bundler.io/v1.3/rationale.html
See the section called "Checking Your Code into Version Control":
After developing your app...
js/php判断终端类型：PC访问、手机访问、微信访问 - 更多技术 - 清泛网 - ...
...ser.versions.mobile && !browser.versions.iPad) {
window.location.href="https://www.tsingfun.com/index.php?m=wap";
}
</script>
不过有时候还是后端判断直接定位相应模板来得直接，不用中转一道，这里提供php的判断方法：
// 判断是否是手机端
functi...
Can't pickle when using multiprocessing Pool.map()
...2,3], [4,5,6]))
See:
What can multiprocessing and dill do together?
and:
http://matthewrocklin.com/blog/work/2013/12/05/Parallelism-and-Serialization/
>>> import pathos.pools as pp
>>> p = pp.ProcessPool(4)
>>>
>>> def add(x,y):
... return x+y
...
>>&...
Where do I find old versions of Android NDK? [closed]
...the NDK that you want and download it from dl.google.com:
Linux example:
http://dl.google.com/android/ndk/android-ndk-r9b-linux-x86.tar.bz2
http://dl.google.com/android/ndk/android-ndk-r9b-linux-x86_64.tar.bz2
OS X example:
http://dl.google.com/android/ndk/android-ndk-r9b-darwin-x86.tar.bz2
http:...