Hi, I want to know what is the best way to keep the databases I use in different projects? I use a lot of CSVs that I need to prepare every time I'm working with them (I just copy paste the code from other projects) but would like to make some module that I can import and it have all the processes of the databases for example for this database I usually do columns = [(configuration of, my columns)], names = [names], dates = [list of columns dates], dtypes ={column: type},

then database_1 = pd.read_fwf(**kwargs), database_2 = pd.read_fwf(**kwargs), database_3 = pd.read_fwf(**kwargs)...

Then database = pd.concat([database_1...])

But I would like to have a module that I could import and have all my databases and configuration of ETL in it so I could just do something like 'database = my_module.dabase' to import the database, without all that process everytime.

Thanks for any help.

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[–] [email protected] 1 points 5 months ago (1 children)

Are you asking how to write a module that you can import?

Yes, kinda.

Are these the same set of DB files every time? Are the columns and other configurations the same? Are you writing new python code every month?

They get updated by the accounting team each month. Some of them are csv, other come from an access database file, other from the sql server.

Some of the code need to be run each month with the updated databases, but there's a lot of ad hoc statistical studies that my boss ask for that use the same databases.

Are you using some ETL process to spit out a bunch of files that you'd like to have imported and available easily? Are the formats the same but the filenames differ?

I guess yes. And not, the accountants keep the same filenames but change the directory lmao.

I think it's the first thing you're after. There are a bunch of tutorials knocking around about this, eg,

Thanks, im checking it out.

how do I make it available for all my new python projects to use?

import sys sys.path.append('my\\modules\\directory) import my_module

I get the impression you're a data person rather than a programmer -perhaps you have a colleague who's more of the latter you can tap up for this?

You're right, I'm an actuarie. I wanted to do computer science instead of actuarial sciences, but I tough that it would be better getting an actuarial degree and then doing a masters on CS (still in planning, maybe 2026). I'm the only guy on the company who uses python and people here thinks I'm a genius because I have automated some boring things from excel.

[–] [email protected] 1 points 5 months ago

If things are changing a bit each month, then in your module rather than a plain variable assignment

darabase = ...

you might want a function that you can pass in parameters to represent the things that can change:

def database(dir, ...):
    ...
    return ...

Then you can call it like this:

from database import database
db = database("/some/path")

... gope that makes some sense.