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Replace input type=file by an image

...ill increase the size of the "browse" button. It then takes some trial and error using the negative left / top properties to position the input browse button behind your label. When positioning the button, set the alpha to 1. When you've finished set it back to 0 (so you can see what you're doing!)...
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Two versions of python on linux. how to make 2.7 the default

I've got two versions of python on my linuxbox: 6 Answers 6 ...
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Unable to verify leaf signature

I'm using node.js request.js to reach an api. I'm getting this error 14 Answers 14 ...
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CSV file written with Python has blank lines between each row

...h line. In my case, newline='' option didn't work. Because it showed some error like : with open('op.csv', 'a',newline=' ') as csv_file: ValueError: illegal newline value: '' So it seemed that they don't accept omission of newline here. Seeing one of the answers here only, I mentioned line ter...
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Elegant way to check for missing packages and install them?

... work, at least for me. When I tried the robust version of this, I get two error messages as R doesn't know how to handle "return True" and "return eval" for some reason. So I would really like a function like this that loads a package if present in my library and otherwise installs (and afterwards ...
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Why is UICollectionViewCell's outlet nil?

... But when I don't use it, it gives me error Assertion failure in -[UICollectionView _dequeueReusableViewOfKind:withIdentifier:forIndexPath:viewCategory:] – Shaheera Jun 30 '16 at 11:04 ...
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Where to find Java JDK Source Code? [closed]

...oad page, what to I have do download? The big file jdk-6u21-ea-src-b04-jrl-05_may_2010.jar, 136.48 MB? I already downloaded that one. But doesn't contain the source code. – Martijn Courteaux May 24 '10 at 12:06 ...
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Enable access control on simple HTTP server

...console. – Rho Phi Sep 12 '16 at 10:05 2 @RobertoFranceschini You might be running into preflight...
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How to know if an object has an attribute in Python

... hasattr is exactly the same as using try/except AttributeError: the docstring of hasattr (in Python 2.7) says that it uses getattr hand catches exceptions. – Jeff Tratner Apr 27 '12 at 3:04 ...
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How to write a multidimensional array to a text file?

...est.txt', x) While the same thing would fail (with a rather uninformative error: TypeError: float argument required, not numpy.ndarray) for a 3D array: import numpy as np x = np.arange(200).reshape((4,5,10)) np.savetxt('test.txt', x) One workaround is just to break the 3D (or greater) array into 2...