This is the problem, if you pass a 3D ndarray, it expects that you will have 3 or 4 planes (RGB or RGBA) (Read the code on line 410 in the last frame of the stack trace). You just need to get rid of the extra dimension using or To see what squeeze is doing, see the following … Read more
raw_input returns a string (a sequence of characters). In Python, multiplying a string and a float makes no defined meaning (while multiplying a string and an integer has a meaning: “AB” * 3 is “ABABAB”; how much is “L” * 3.14 ? Please do not reply “LLL|”). You need to parse the string to a numerical value. You might want to try:
In Windows Explorer, just go to the Address Bar at the top (keyboard shortcuts: Alt+D or Ctrl+L) and type powershell or powershell_ise and press Enter. A PowerShell command window opens with the current directory.
To get the full path to the directory a Python file is contained in, write this in that file: (Note that the incantation above won’t work if you’ve already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.) To get … Read more
First, let’s see what this does:Arrays.asList(ia) It takes an array ia and creates a wrapper that implements List<Integer>, which makes the original array available as a list. Nothing is copied and all, only a single wrapper object is created. Operations on the list wrapper are propagated to the original array. This means that if you shuffle the list … Read more
The need is the possible desire for reproducible results, which may for example come from trying to debug your program, or of course from trying to redo what it does: These two results we will “never” reproduce as I just asked for something “random”: These two, however, are identical because I set the seed: There is … Read more
super() calls the parent constructor with no arguments. It can be used also with arguments. I.e. super(argument1) and it will call the constructor that accepts 1 parameter of the type of argument1 (if exists). Also it can be used to call methods from the parent. I.e. super.aMethod() More info and tutorial here
If you’re using Windows Server 2008 R2 then there is an x64 and x86 version of PowerShell both of which have to have their execution policies set. Did you set the execution policy on both hosts? As an Administrator, you can set the execution policy by typing this into your PowerShell window: For more information, see Using the Set-ExecutionPolicy Cmdlet. When you are … Read more
I had the same problem. My solution: For Python 3 For Python 2
There are working combinations of OS, JDK and Eclipse bitness. In my case, I was using a 64-bit JDK with a 32-bit Eclipse on a 64-bit OS. After downgrading the JDK to 32-bit, Eclipse started working. Use one of the following combinations. 32-bit OS, 32-bit JDK, 32-bit Eclipse (32-bit only) 64-bit OS, 32-bit JDK, 32-bit … Read more