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ValueError: numpy.dtype has the wrong size, try recompiling

I just installed pandas and statsmodels package on my python 2.7 When I tried "import pandas as pd", this error message comes out. Can anyone help? Thanks!!! ...
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Centering a background image, using CSS

...nd-image:url(https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/Dore_woodcut_Divine_Comedy_01.jpg/481px-Dore_woodcut_Divine_Comedy_01.jpg); background-repeat:no-repeat; background-position: center; background-size: cover; html{ height:100% } body{ background-image:url(https://uplo...
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Why is creating a Thread said to be expensive?

... there is a fair bit of work involved: A large block of memory has to be allocated and initialized for the thread stack. System calls need to be made to create / register the native thread with the host OS. Descriptors need to be created, initialized and added to JVM-internal data structures. It...
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How do I check for nulls in an '==' operator overload without infinite recursion?

...ccepted answer is a function, that executes the == of object. This is basically the same as the accepted answer, with one downside: It needs a cast. The accpeted answer is thus superior. – Mafii Jul 8 '16 at 12:43 ...
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Is there an equivalent for the Zip function in Clojure Core or Contrib?

... a collection of zipWith (zipWith3, zipWith4, ...) functions, because they all need to be of a specific type; in particular, the number of input lists they accept needs to be fixed. (The zip, zip2, zip3, ... family can be regarded as a specialisation of the zipWith family for the common use case of ...
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How do you convert an entire directory with ffmpeg?

... Previous answer will only create 1 output file called out.mov. To make a separate output file for each old movie, try this. for i in *.avi; do name=`echo "$i" | cut -d'.' -f1` echo "$name" ffmpeg -i "$i" "${name}.mov" done ...
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How do you run a crontab in Cygwin on Windows?

... You need to also install cygrunsrv so you can set cron up as a windows service, then run cron-config. If you want the cron jobs to send email of any output you'll also need to install either exim or ssmtp (before running cron-config.) See /usr/...
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Convert Python program to C/C++ code? [closed]

...t * stuff). And it will never get quite as fast as plain C because it's usually interfacing with Python (100% or more? only for plain numerical code that doesn't interface with Python at all for the most time!). But other than that, yes, it can get you a pretty devent speedup. –...
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How to detect my browser version and operating system using JavaScript?

...g OS: // This script sets OSName variable as follows: // "Windows" for all versions of Windows // "MacOS" for all versions of Macintosh OS // "Linux" for all versions of Linux // "UNIX" for all other UNIX flavors // "Unknown OS" indicates failure to detect the OS var OSName="Un...
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What is a predicate in c#? [duplicate]

...cate<T> is a functional construct providing a convenient way of basically testing if something is true of a given T object. For example suppose I have a class: class Person { public string Name { get; set; } public int Age { get; set; } } Now let's say I have a List<Person> p...