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socket.error: [Errno 48] Address already in use
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You already have a process bound to the default port (8000). If you already ran the same module before, it is most likely that process still bound to the port. Try and locate the other process first:
$ ps -fA | grep python
501 81651 12648 0 9:53PM ttys000 0:00.16 python -m Sim...
When should a class be Comparable and/or Comparator?
...s instances.
Comparator
A comparator object is capable of comparing two different objects. The class is not comparing its instances, but some other class’s instances. This comparator class must implement the java.util.Comparator interface.
...
Is JavaScript an untyped language?
...typed" to mean "no static types"...
So the problem is that there's a few different definitions of untyped.
One definition has been talked about in one of the above answers - the runtime doesn't tag values and just treats each value as bits. JavaScript does tag values and has different behaviour bas...
How to get different colored lines for different plots in a single figure?
I am using matplotlib to create the plots. I have to identify each plot with a different color which should be automatically generated by Python.
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Make a program run slowly
...parameters in Linux? In this way I would like to simulate what will happen if that particular program happens to run on a real slower machine.
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How to close activity and go back to previous activity in android
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You have set android:noHistory = "true" for MainActivity inside AndroidManifest.xml which causes MainActivity to finish automatically on pressing the back key.
OR
Before switching to your 'SettingsActivity', you have called finish() in your MainActivity, which kills it. When you press back button...
How to get .pem file from .key and .crt files?
How can I create a PEM file from an SSL certificate?
10 Answers
10
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Actionbar notification count icon (badge) like Google has
Is there a android standard badge or method to show action bar notification icon with a count like on Google examples?
9 An...
What does @@variable mean in Ruby?
...e is plenty of additional reading on the subject, but think about it as modifying the Class class, but only the instance of the Class class you're working with. An example:
class Polygon
class << self
attr_accessor :sides
end
end
class Triangle < Polygon
@sides = 3
end
class Re...
Static method behavior in multi-threaded environment in java
... own stack. Some of these values might be pointers to objects on the heap. If two threads are running the same method at the same time they will both have their code pointers pointing at that method and have their own copies of arguments and local variables on their stacks. They will only interfere ...