I have to copy particular columns from a given file to another file. but while copying that columns to another file i don’t need them in list format. How can i do that? eg suppose file is abc.txt.gz From this data i needed to copy 3rd and 4th column and move to another file. Expected output: data.txt In…
Tag: python
Check result of chi square test on pandas columns data
I wrote the test according to an approach I found. When looking in Stack Overflow I saw another approach (can be seen here) which was a little more complicated, and made me wonder if I chose the right one. I’m looking for ways to check if my calculation is correct. Here is the relevant code: Any suggest…
Python Websocket-Client Package Frequent Ping-Pong Timeouts Upon Too Many Subscriptions
I am using the python websocket-client package (https://pypi.org/project/websocket-client/) to subscribe to multiple websocket channels. I implemented the basic ping-pong logic using the websocket client package as below. The ping-pong logic is working mostly fine under normal circumstances and I am able to r…
Tkinter – TTK – Button change state after click
how can i change the state of a button made with TTK in Python after i clicked it ? I want to disable the button START after i press it once and re-enable it after pressing STOP. I want this because my code creates a new duplicated thread everytime i press Start … so… i want to disable it… I
Why does my Python file directory structure not match my Dockerfile output?
My Dockerfile (run by a much larger docker-compose): and the relevant code from the docker-compose.yml: The Python code I’m using to check the directory structure: and its output: I don’t understand why the directory structure seen/output by the Dockerfile would be completely different from the di…
matplotlib: reduce empty space on axis
The following code (obtained from here): Gives me this: What I’m trying to do is reduce the empty space on the y-axis, indicated here by the red bars: How can I do this? Changing the height of the figure doesn’t seem to help. Answer One quick solution is to manually set the margins using
Column dictionary values into separate Dataframe
I have a dataframe which has a column that contains a list of dictionaries. This is what an example column value it looks like: I want to create a separate dataframe that takes the above column values for each row, and produces a dataframe where ‘category’ is a column, and the values for that colu…
ImportError: cannot import name ‘_rfc_1738_quote’ from ‘sqlalchemy.engine.url’
I am using a python snowflake connector from the following package: snowflake-sqlalchemy It used to be working but it’s now failing with this weird error. I tried to switch to older version of the package, but can’t get rid of this error. Here is the fulll stack trace: Answer Looks like this is a …
How to draw lines between widgets in Tkinter?
I have written a script that takes in a file of the format Where each line in the list represents a ‘parent’ node and its list of ‘child’ nodes. So far I have written a script such that these nodes are printed out like a tree, and now I want to try to draw lines/arrows between these no…
How to recalculate data from table in flask/python?
I want to show df in my app, im using flask to do it. But how can i make the table editable and calculated sum value by using button? I couldn’t found good and easy way to edit that html table, and somehow send it to backend to recalculate. Most tips i found abuot editables tables involve data from sql