python-3.x

Tkinter grid_forget is clearing the frame

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from tkinter import * from PIL import ImageTk,Image root=Tk() root.title("Image Viewer") def buttonforward(image_number): global myLabel myLabel.grid_forget() myLabel = Label(image=imagelist[image_number-1]) myLabel.grid(row=0, column=0, columnspan=3) return my_img1 = ImageTk.PhotoImage(Image.open('mountain1.jpg')) my_img2 = ImageTk.PhotoImage(Image.open('mountain2.jpg')) my_img3 = ImageTk.PhotoImage(Image.open('mountain3.jpg')) my_img4 = ImageTk.PhotoImage(Image.open('mountain4.jpg')) my_img5 = ImageTk.PhotoImage(Image.open('mountain5.jpg')) myLabel = Label(image=my_img1, ).grid(row=0, column=0, columnspan=3) imagelist = [my_img1, my_img2, my_img3, my_img4, my_img5] button_back = Button(root, text='<<').grid(row=1,column=0) … Read more

How to share numpy random state of a parent process with child processes?

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I set numpy random seed at the beginning of my program. During the program execution I run a function multiple times using multiprocessing.Process. The function uses numpy random functions to draw random numbers. The problem is that Process gets a copy of the current environment. Therefore, each process is running independently and they all start with the same random seed as the parent environment.

TypeError: got multiple values for argument

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I read the other threads that had to do with this error and it seems that my problem has an interesting distinct difference than all the posts I read so far, namely, all the other posts so far have the error in regards to either a user created class or a builtin system resource. I am experiencing this problem when calling a function, I can’t figure out what it could be for. Any ideas?