Forgive me if this question has been asked before but I could not find any related answer. Consider a function that takes a numerical type as input parameter: This works with integers, floats and complex numbers. Is there a basic type so that I can do a type hinting (of a real existing type/base class), such …
WhatsApp Web Automation with Python Selenium (unable to locate element)
I am using python and selenium to send a message to a target. I can successfully open whatsapp web but after that I cannot open the inbox of the contact to whom I want to send the message. Here is the code so far. The first part is common where I have to open the web page. It happened without
Loss function for CNN sliding window model, for multi Object
I implemented a model with python using Keras which is series of convents layer that takes a 512*512 image and converts it to a tensor with the dimensions of 16*16. Im now trying to detect an object in this 16*16 tensor so that it gives me a 1 for detecting and a 0 otherwise. The problem is I don’t know
how to make json.loads() read a json string with the column names as the first element
I am serializing a datatable from a http get and for performance reasons would prefer to serialize it in a Names, Values structure, so that the first element contains the column names, can json.loads deal with this, if not is there another json parser that will? (this reduces the size to 20% of a standard JSO…
Neural Network Results always the same
Edit: For anyone interested. I made it slight better. I used L2 regularizer=0.0001, I added two more dense layers with 3 and 5 nodes with no activation functions. Added doupout=0.1 for the 2nd and 3rd GRU layers.Reduced batch size to 1000 and also set loss function to mae Important note: I discovered that my …
Abstract dataclass without abstract methods in Python: prohibit instantiation
Even if a class is inherited from ABC, it can still be instantiated unless it contains abstract methods. Having the code below, what is the best way to prevent an Identifier object from being created: Identifier([‘get’, ‘Name’])? Answer You can create a AbstractDataclass class which gu…
Is it possible to merge cells with an openpyxl write-only worksheet?
I am creating worksheets with about 100,000 rows and openpyxl’s writing operation is quite slow. It would be useful to get a row object and to fill it in, but I can’t find an API for that. The documentation on optimization mentions write-only mode. My problem with this mode is that it doesn’…
How contour an image area with known coordinates?
I have an ultrasound image and the coordinates (array of x and y points) of the tumor of each image. How can I make a contour around the tumor with those known coordinates using cv.drawContours()? I wish to delete all the information around the tumor and stay only with the tumor image/information. I am gettin…
IBM Watson CPLEX Shows no Variables, no Solution when solving LP file
I’m migrating an application that formerly ran on IBM’s DoCloud to their new API based off of Watson. Since our application doesn’t have data formatted in CSV nor a separation between the model and data layers it seemed simpler to upload an LP file along with a model file that reads the LP f…
How to decode a video (memory file / byte string) and step through it frame by frame in python?
I am using python to do some basic image processing, and want to extend it to process a video frame by frame. I get the video as a blob from a server – .webm encoded – and have it in python as a byte string (b’x1aExdfxa3xa3Bx86x81x01Bxf7x81x01Bxf2x81x04Bxf3x81x08Bx82x88matroskaBx87x81x04Bx85…