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Assigning a variable NaN in python without numpy
...gt;> import math
>>> math.isnan(nan)
True
Before Python 3.5, one could use float("nan") (case insensitive).
Note that checking to see if two things that are NaN are equal to one another will always return false. This is in part because two things that are "not a number" cannot (strict...
How do I pull from a Git repository through an HTTP proxy?
...out using submodules within a project, the same applies to a normal git clone of a repository over HTTP.
28 Answers
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Why is #!/usr/bin/env bash superior to #!/bin/bash?
...o use #!/usr/bin/env bash in preference to #!/bin/bash . I've even seen one enterprising individual suggest using #!/bin/bash was wrong and bash functionality would be lost by doing so.
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How to prevent scrollbar from repositioning web page?
...-aligned DIV. Now, some pages need scrolling, some don't. When I move from one type to another, the appearance of a scrollbar moves the page a few pixels to the side. Is there any way to avoid this without explicitly showing the scrollbars on each page?
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Get first day of week in PHP?
Given a date MM-dd-yyyy format, can someone help me get the first day of the week?
38 Answers
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Are parallel calls to send/recv on the same socket valid?
...the netowrk stack and out onto the network asynchronously. So if you have one thread sending and one thread receiving, its entirely possible (even likely) for the sending thread to send many packets before the receiving thread receives the first packet. Its entirely asynchronous and not simultaneo...
No module named pkg_resources
...ap script instructions will remain below, in case it's still helpful to anyone.
Legacy Answer
I encountered the same ImportError today while trying to use pip. Somehow the setuptools package had been deleted in my Python environment.
To fix the issue, run the setup script for setuptools:
wget ht...
In-Place Radix Sort
... How is the speed with longer sequences? You don't have enough different ones with a length of 5
– Stephan Eggermont
Jan 22 '09 at 21:10
4
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Naming convention for utility classes in Java
...m, and the name should at least give us a clue what that difference is. If one contains utility functions related to name and address and the other contains utility functions related to orders, then call them CustomerNameAndAddressUtil and CustomerOrderUtil or some such. I regularly go nuts when I s...
What is the difference between a pseudo-class and a pseudo-element in CSS?
...lity with existing style sheets, user agents must also accept the previous one-colon notation for pseudo-elements introduced in CSS levels 1 and 2 (namely, :first-line, :first-letter, :before and :after). This compatibility is not allowed for the new pseudo-elements introduced in this specification....