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RuntimeWarning: invalid value encountered in divide
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Python indexing starts at 0 (rather than 1), so your assignment "r[1,:] = r0" defines the second (i.e. index 1) element of r and leaves the first (index 0) element as a pair of zeros. The first value of i in your for loop is ...
Storing Images in PostgreSQL
...detailed solution? Is there any other extension available? Multicorn needs python and I would prefer having to do without using Python..
– Jay Khatwani
Mar 18 '16 at 3:35
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What is the difference between Google App Engine and Google Compute Engine?
...ally used. But the restriction is, you can create your application in only Python, PHP, Java, NodeJS, .NET, Ruby and **Go.
On the other hand, GCE provides you full infrastructure in the form of Virtual Machine. You have complete control over those VMs' environment and runtime as you can write or in...
Install NPM into home directory with distribution nodejs package (Ubuntu)
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Because python does already a great job virtualenv, I use nodeenv. Compared to nvm, you can create multiple environments for the same node version (e.g. two environments for node 0.10 but with different sets of packages).
ENVNAME=de...
__init__ for unittest.TestCase
...en be used by some of the tests. I would use setUpClass, but I don't think python 2.4 supports it.
– ffledgling
Jun 27 '13 at 21:50
2
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Why are dates calculated from January 1st, 1970?
...ard for time manipulation? I have seen this standard in Java as well as in Python. These two languages I am aware of. Are there other popular languages which follows the same standard?
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What's the difference between subprocess Popen and call (how can I use them)?
I want to call an external program from Python. I have used both Popen() and call() to do that.
2 Answers
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Having options in argparse with a dash
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The relevant Python bug report: bugs.python.org/issue15125. argparse uses setattr and getattr, so dest names do not have to be valid dot attribute names. The user can also use getattr.
– hpaulj
Nov...
Sass or Compass without ruby?
...her language. At this point, you can use the Sass engine in Ruby, Node.js, Python, PHP, Java, .NET and others. For more information, visit libSass. Also, your IDE might have a plugin which would support Sass, without the need of ruby by using the libSass.
The original answer below may or may not ap...
What is “vectorization”?
...UMPY(not sure of other else).
Numpy (package for scientific computing in python) , uses vectorization for speedy manipulation of n-dimensional array ,which generally is slower if done with in-built python options for handling arrays.
although tons of explanation are out there , HERE'S WHAT VECTOR...