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Reconstructing an image after using extract_image_patches

I have an autoencoder that takes an image as an input and produces a new image as an output. The input image (1x1024x1024x3) is split into patches (1024x32x32x3) before being fed to the network. Once I have the output, also a batch of patches size 1024x32x32x3, I want to be able to reconstruct a 1024x1024x3 i…

Getting TypeError: __init__() missing 1 required positional argument: ‘on_delete’ when trying to add parent table after child table with entries

I have two classes in my sqlite database, a parent table named Categorie and the child table called Article. I created first the child table class and addes entries. So first I had this: And after I have added parent table, and now my models.py looks like this: So when I run python manage.py makemigrations &l…

Instantiate variables to None in Python

Why do these two blocks of code not do the same thing? I wanted to “clean up” my code by doing the following, but it does not work the same as the code above. Also is there a “cleaner” way to instantiate all the variables than the top block of code. Answer The other answers are great w…

Creating a dataframe from a dict where keys are tuples

I have the following dict, with keys as tuples: I’d like to create a dataframe with 3 columns: Col1, Col2 and Col3 which should look like this: I can’t figure out how to split the tuples other than parsing the dict pair by pair. Answer Construct a Series first, then resetting the index will give y…

why UniqueConstraint doesn’t work in flask_sqlalchemy

I want an alternative of Django’s unique_together in flask, seems UniqueConstraint is what I’m looking for, but doesn’t work for me. here is the example: Test it: I also tried with: not work either, what’s wrong with it? Answer An instance of UniqueConstraint is iterable and in this ca…

Check if two numpy arrays are identical

Suppose I have a bunch of arrays, including x and y, and I want to check if they’re equal. Generally, I can just use np.all(x == y) (barring some dumb corner cases which I’m ignoring now). However this evaluates the entire array of (x == y), which is usually not needed. My arrays are really large,…

Python, Seaborn FacetGrid change titles

I am trying to create a FacetGrid in Seaborn My code is currently: This gives my the Figure Now, instead of “ActualExternal =0.0” and “ActualExternal =1.0” I would like the titles “Internal” and “External” And, instead of “ActualDepth” I would like t…