assignment_1 | Assignment for the DIS class

I am trying to create a snackbar on the click of a button in flutter, but getting exception that No ScaffoldMessenger widget found. The same code seems to work properly in the Flutter sample mentioned in docs. Am I missing something here? Thanks.

Here's my main.dart file

I am learning to code and I am stuck. I trying to define a function which reads data from a file and converts it to a single list and each item in the list being a tuple having integers, floats and characters.

I have been trying to tackle this problem all week but I just can't seem to find the solution.

Basically I want to group on 2 values (user and assignment), then take the last element based on date and get a sum of these scores. Below a description of the problem.

With Postgres this would be easily solved by using the .distinct("value") but unfortunately I do not use Postgres.

Any help would be much appreciated!!

I'm writing a program which takes a grid input and stores it as a 2d array. However, I keep on getting a InputMismatchException error and I can't seem to find out the cause of this. Here is the code:

My function reads multiple .sgm files. I get an error when reading the content from the file speficially at line contents = f.read()

I am running 2 Python 3.7.6 scripts that rely on the PIL library in a Jupyter notebook and getting different results and I cannot determine why. I believe the two pieces should be equivalent and the output identical. Can someone tell me why the second block is not generating the same output as the first?

In essence, the code should do the same thing, split an image into its RGB color channels, multiply each channel by one of 3 different intensities, and then merge the channels back into a composite image. Here is the source image:

The only difference between the two code blocks is that in one I do the split within the innermost for loop and in the other, I do the split outside the for loops, copy the result to a variable and then assign the copy within the innermost loop.

In the first section I call the image split function within the innermost loop in the first segment and assign it to an image tuple variable:

img_tmp = image.split()

in the second, I call it outside the outer loop and assign it to an image tuple variable, and then assign that variable to a second variable within the innermost loop to reset the value every time through.

Using the enum: