open() function error

Recently, I started studying Python on my own.
I'm still so immature that I can't even call you a beginner, but I'm sorry to ask you this question.

I use Eclipse.
I wrote the following code in the open() function.

open_file=open('point.txt')
raw_data=open_file.read()
open_file.close()
print(raw_data)

point.txt is in the same folder, and the results of the loading are displayed when running in the Eclipse app, but when you run it at the command prompt,

open_file=open('point.txt')
FileNotFoundError: [Errno2] No such file or directory: 'point.txt'

The file does not exist.
Is the Eclipse setting not working?

Sorry for the rudimentary question.
By the way, Eclipse uses PyDev.