In some of my Apache Airflow installations, DAGs or tasks that are scheduled to run do not run even when the scheduler doesn’t appear to be fully loaded. How can I increase the number of DAGs or tasks that can run concurrently? Similarly, if my installation is under high load and I want to limit how qui…
Prevent Sharing of Y Axes in a relplot
I’m having trouble getting seaborn’s relplot function to plot with different y axes on each row (while sharing x axes per column). I can see that both the FacetGrid and catplot methods in seaborn have a sharex/sharey keyword argument that would solve my problem, but I can’t find a similar on…
How can I use datetime.strptime on a string in the format ‘0000-00-00T00:00:00+00:00’?
Due to my application’s circumstances, I would prefer to use datetime.strptime instead of dateutil.parser. After looking at the docs, I thought that %Y-%m-%dT%H:%M:%S%z may be the proper format for parsing a date string like this. Yet it still gives me an error. Example Answer The easiest way to deal wi…
Numpy Zero Padding to match a certain shape
I have a file with arrays or different shapes. I want to zeropad all the array to match the largest shape. The largest shape is (93,13). To test this I have the following code: how can I zero pad this array to match the shape of (93,13)? And ultimately, how can I do it for thousands of rows? Edit: The
Is calling a “private” variable from a parent class (as a child class) violating Encapsulation
I am trying to understand more about the scopes of python variables. As of now, I do not want to break or violate encapsulation on variables that are declared to be private i.e., “self._variable”. I was wondering whether if it would be breaking encapsulation if a child class directly calls a varia…
Python argparse – user defined Action with ‘store_true’ behavoiur
Hi I suppose that i have parser argument which cannot pass any value, for example: And my user defined action: When i trying call this without any values: I receive this error message: I know that i can add action ‘store_true’ to my argument, but in this solution i cannot redirect execution of thi…
Connect to Power BI XMLA endpoint with Python
Since the announcement about XMLA endpoints, I’ve been trying to figure out how to connect to a URL of the form powerbi://api.powerbi.com/v1.0/myorg/[workspace name] as an SSAS OLAP cube via Python, but I haven’t gotten anything to work. I have a workspace in a premium capacity and I am able to co…
Extract multiple words using regexp_extract in PySpark
I have a list which contains some words and I need to extract matching words from a text line, I found this, but it only extracts one word. keys file content this is a keyword part_description file content 32015 this is a keyword hello world Code Outputs Expected output I want to return all matching keyword a…
My PyQt application not works with error – This application failed to start because no Qt platform
I developed a Python program using PyQt5 in Windows 10, and it works very well. Then i made it into .exe file with pyinstaller, but it failed and gave me an error. I searched for similar problems in here and google, but i couldn’t find the same problem – running .py works well but .exe failed. Fol…
Scale and crop an image in python PIL without exceeding the image dimensions
I am cropping an image using python PIL. Say my image is as such: This is the simple code snippet I use for cropping: The result of this is: I want to scale out this cropped image keeping the aspect ratio (proportionate width and height) same by say 20% to look something like this without exceeding the image …