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Problems with pip install numpy - RuntimeError: Broken toolchain: cannot link a simple C program

I'm trying to install numpy (and scipy and matplotlib) into a virturalenv. 11 Answers ...
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Matlab: Running an m-file from command-line

... A command like this runs the m-file successfully: "C:\<a long path here>\matlab.exe" -nodisplay -nosplash -nodesktop -r "run('C:\<a long path here>\mfile.m'); exit;" ...
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HTTP error 403 in Python 3 Web Scraping

... This works but I feel like they must have a good reason to block bots and I'm violating their terms of service – xjcl Oct 11 '19 at 7:19 add a comment  ...
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How to check an Android device is HDPI screen or MDPI screen?

... Density values described at: developer.android.com/guide/practices/screens_support.html – esilver Jan 21 '14 at 21:52 1 ...
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Can you do a partial checkout with Subversion?

If I had 20 directories under trunk/ with lots of files in each and only needed 3 of those directories, would it be possible to do a Subversion checkout with only those 3 directories under trunk? ...
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How do I check (at runtime) if one class is a subclass of another?

Let's say that I have a class Suit and four subclasses of suit: Heart, Spade, Diamond, Club. 9 Answers ...
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Python Requests and persistent sessions

...n 2.5). I have figured out how to submit data to a login form on a website and retrieve the session key, but I can't see an obvious way to use this session key in subsequent requests. Can someone fill in the ellipsis in the code below or suggest another approach? ...
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JavaScript, elegant way to check nested object properties for null/undefined [duplicate]

a "problem" which i have every now and then is that i have an object e.g. user = {} and through the course of using the app this gets populated. Let's say somwhere, after an AJAX call or something i do this: ...
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Format floats with standard json module

I am using the standard json module in python 2.6 to serialize a list of floats. However, I'm getting results like this: ...
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How to change font of UIButton with Swift

...leLabel?.font = UIFont.boldSystemFont(ofSize: 16) where "boldSystemFont" and "16" can be replaced with your custom font and size. share | improve this answer | follow ...