In a project I am working on, I have multiple classes in which I wish to each have an update function when an object is created. How do I get these update functions to run every frame? i.e for this example code, how do I get both class a and b to run update functions? At the moment neither function
Tag: python
Tensorflow Keras Tensor Multiplication with None as First Dimension
I’m using TensorFlow Keras backend and I have two tensors a, b of the same shape: (None, 4, 7), where None represents the batch dimension. I want to do matrix multiplication, and I’m expecting a result of (None, 4, 4). i.e. For each batch, do one matmul: (4,7)·(7,4) = (4,4) Here’s my code &#…
Pyspark: regex search with text in a list withColumn
I am new to Spark and I am having a silly “what’s-the-best-approach” issue. Basically, I have a map(dict) that I would like to loop over. During each iteration, I want to search through a column in a spark dataframe using rlike regex and assign the key of the dict to a new column using withC…
Delete the rows that have the same value in the columns Dataframe
I have a dataframe like this : origin destination germany germany germany italy germany spain USA USA USA spain Argentina Argentina Argentina Brazil and I want to filter the routes that are within the same country, that is, I want to obtain the following dataframe : origin destination germany italy germany sp…
Check if values from the list exist in another list without additional characters
I have 2 lists: List a (and c ) must contain only characters from list b. Also in the list a(and c ) can be missed characters from list b but the characters from the list be must appear or partially : As a result, list a (because it contains additional characters) is wrong and list c is OK (although-
A code to find out the count of females and males in a column using python
I want an output in a table as shown below: Answer Example inspired by this article This prints You can read more about value_counts() here.
SSL Error (Port=443) Max retries exceeded when trying to import osmnx data in Jupiter Notebook
When trying to run this line G = ox.graph_from_place(‘Piedmont, CA, USA’, network_type=’drive’) I get this error: I googled and found this could be a solution but I got the same error message: (I changed my/app_1 to “ABC” in the code above) I also tried – since that w…
How am I able to replace duplicates in a dataframe column in python?
say my column is something like this: I would like to drop the duplicate elements in the column and replace them with NAN or 0 so it would end up with something like: I am completely unsure of the logic I can use to do this, I think I would forward fill up until the next change in signal with
Pandas: Plotting / annotating from DataFrame
There is this boring dataframe with stock data I have: Then I am plotting the prices So far so good… Then I’d like to show a marker on the chart if there was buy (green) or sell (red) on that day. It’s just to highlight if there was a transaction on that day. The exact intraday price at whic…
SQLAlchemy changes value after commit
Seemingly out of nowhere, my Flask app is now inserting the same value for one column in a table in my database no matter what when it had been previously working. I have a model here: and code in my application: The result of the prints is So it looks like after the record is committed, the number changes an…