🔒 No such file or directory, Python can't find the obvious csv file

[visual brook]

I need to present a dataset for a school project, trying to make an exponential regression of the data but it won't find the csv file, even though I wrote everything correctly

[thorn ridge]

@visual brook

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[visual brook]

dtf = open("nydata.csv", "r") # r=read
lines = dtf.readlines()

FileNotFoundError: [Errno 2] No such file or directory: 'nydata.csv'

[buoyant comet]

it's looking for nydata.csv in the current directory, not relative to the script path.

You can get to the correct file by using os.path or pathlib.Path and __file__

import os.path

nydata_file = os.path.join(os.path.dirname(__file__), "nydata.csv")

# or

from pathlib import Path

nydata_file = Path(__file__).parent / "nydata.csv"

[visual brook]

do i have download ospath with pip @buoyant comet

[buoyant comet]

os.path is stdlib

same with pathlib

[visual brook]

is that a no? im not good at this sorry🥹 just tryna make it through this one project

[buoyant comet]

don't use os.path from pip

use the example I sent. It works on all systems

[visual brook]

okok, im just tryna make the lines = dtf.readlines() work

because u used another variable instead of that dtf

do i just remove this line dtf = open("nydata.csv", "r") # r=read

and change lines = dtf.readlines() so it says nydata_file.readlines()

?

[buoyant comet]

nydata_file should replace the argument to open

dtf = open(mydata_file)

[visual brook]

EUREKA

IT WORKED THANK YOU

I LOVE YOU

[buoyant comet]

!with

[thorn ridge]

The `with` keyword

The with keyword triggers a context manager. Context managers automatically set up and take down data connections, or any other kind of object that implements the magic methods __enter__ and __exit__.

with open("test.txt", "r") as file:
    do_things(file)

The above code automatically closes file when the with block exits, so you never have to manually do a file.close(). Most connection types, including file readers and database connections, support this.

For more information, read the official docs, watch Corey Schafer's context manager video, or see PEP 343.

[visual brook]

?

let me read that

hold on

[buoyant comet]

somethhing else to look at

[visual brook]

does the "with" command basically replace the variable

and just open it as a one time thing

[buoyant comet]

kind of

you'd do ```py
with open('seomthing') as file:
lines = file.readlines()

print(*lines)

[visual brook]

ohhh i think i understand. ill stick with the other one though my brain understands that a little bit better

tthank you for replying so fast and so clearly.

[thorn ridge]

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