From Python to os.What does Pardir mean?

import sys, os
os.chdir("C:\Coding\DeepLearning")
sys.path.append(os.pardir)
import numpy as np
from dataset.mnist import load_mnist
from TwoLayerNet import TwoLayerNet

In this phrase, o.s.What does Pardir mean? Do you mean to paste the path of the directory where that file exists? That file is

C:\Coding\DeepLearning\Backforward

A file that exists in this path and the mnist module underneath it is

C:\Coding\DeepLearning\dataset

It exists in this path.

If you run it like that,

  traceback. : (most recent call last)
  File "C:\Coding\DeepLearning\Backforward\gradient_check.py", line 5, in <module>
    from dataset.mnist import load_mnist
ModuleNotFoundError: No module named 'dataset'
[Finished in 0.522s]

It extracts these error codes.

python

2022-09-22 18:40

2 Answers

os.pardir refers to the parent directory of the current directory.

Modify sys.path.append(os.pardir) to sys.path.append('C:\Coding\DeepLearning') and test it

The C:\Coding\DeepLearning\dataset directory must have _init__.py.

Study more about Python's package items.

2022-09-22 18:40

import sys
sys.path

You can see the set path by checking the value of .

You can add one of those paths and I want to add a separate pathCotton

You can add it at runtime with sys.path.append above.

If it's Windows, at the place where you register environmental variables

Variable Name: PYTHONPATH

Variable value: %PYTHONPATH%; desired path

You can set it up system-wide in the same format as .

2022-09-22 18:40

If you have any answers or tips

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