Python

Efficient way to extract data from NETCDF files

cdo-climate nco netcdf python python-xarray

I have a number of coordinates (roughly 20000) for which I need to extract data from a number of NetCDF files each comes roughly with 30000 timesteps (future climate scenarios). Using the solution here is not efficient and the reason is the time spent at each i,j to convert “dsloc” to “dataf…

How to create a script that gives me every combination possible of a six digit code

combinations performance python

Me and a friend want to create a script that gives us every possible permutation of a six digit code, comprised of 36 alphanumeric characters (0-9, and a-z), in alphabetical order, then be able to see them in a .txt file. And I want it to use all of the CPU and RAM it can, so that it takes less

Make a new column for each category in a particular column and repeat this for all columns in a Pandas dataframe

dataframe pandas python

I have a dataset like below-: I want new columns for each category in all columns for each state. An example of a row is below-: EDIT Data dump of 1st 5 rows as asked-: Answer Use pd.get_dummies + Groupby.sum(), as follows: Result: If you want to exclude the entries with value NA, you can use: Result:

Distinguishing between Pydantic Models with same fields

abc pydantic python

I’m using Pydantic to define hierarchical data in which there are models with identical attributes. However, when I save and load these models, Pydantic can no longer distinguish which model was used and picks the first one in the field type annotation. I understand that this is expected behavior based …

Unable to locate element by class name using selenium via Python. Why so?

python selenium web-scraping

I wrote the following code in order to scrape the text of the element <h3 class=”h4 mb-10″>Total nodes: 1,587</h3> from https://blockchair.com/dogecoin/nodes. I’m aware that there are perhaps less bloated options than selenium to scrape the target in question, yet the said code i…

How can I pass the TKinter button/label that triggered a bind to a function which that bind calls?

python tkinter

I hope someone can help with this. I’m new to coding and wanted to try doing some GUI stuff in Python with TKinter. In one of my projects, I want any button that the mouse hovers over to change it’s background color. However I don’t want to define a function for every single button. Here is …

Create new key based on relationship between two columns

networkx pandas python

I’m trying to add a key for all related instances between two columns, then create a GroupID The logic will be: Check all instances of ID2 linked to ID1 CHeck all instances of ID1 linked to ID2 found in (1) Repeat until all relationships found Answer Let us try with networkx

How to keep n characters of each row of a pd df, where n differs by row?

pandas python split warnings

I have created a df one column of which contains string values that I want to trim based on a different int value each time. Ex.: From: length String -3 adcdef -5 ghijkl I wanna get: length String -3 def -5 hijkl What I tried is the following: However, I keep getting this warning: SettingWithCopyWarning: A va…