Google Colab:从另一个python文件调用函数

Question

我想从load_data.pypython文件中运行一个函数DataProcesser，该文件可以在我的google驱动器路径gdrive/My Drive/Colab Notebooks/CODEX/source/中找到。

from google.colab import drive
drive.mount('/content/gdrive')
# Custom functions/classes
path_to_module = 'gdrive/My Drive/Colab Notebooks/CODEX/source/'  # Path where all the .py files are, relative to the notebook folder
sys.path.append(path_to_module)
from load_data import DataProcesser

回溯:

> --------------------------------------------------------------------------- ModuleNotFoundError                       Traceback (most recent call
> last) <ipython-input-30-066e93c75b7d> in <module>()
>      20 path_to_module = 'gdrive/My Drive/Colab Notebooks/CODEX/source/'  # Path where all the .py files are, relative
> to the notebook folder
>      21 sys.path.append(path_to_module)
> ---> 22 from load_data import DataProcesser
>      23 from train_utils import even_intervals
>      24 from models import *
> 
> ModuleNotFoundError: No module named 'load_data'
> 
> --------------------------------------------------------------------------- NOTE: If your import is failing due to a missing package, you can
> manually install dependencies using either !pip or !apt.
> 
> To view examples of installing some common dependencies, click the
> "Open Examples" button below.
> -------------------------------------------------------------

Answer 1

您可能不需要转义字符串path_to_module中的空格，但可能是Colab看到的路径不同。如果你在Colab中展开files选项卡，你可以导航到Google Drive中的文件。然后你可以右键单击你想要的文件或文件夹，然后执行Copy path。然后可以将其粘贴到定义path_to_module的单元格中。

我只想说，它对我有用;但我的路径(.../tmp)将与你的不同。

from google.colab import drive
drive.mount('/content/gdrive')
import sys    
path_to_module = '/content/gdrive/MyDrive/tmp'
sys.path.append(path_to_module)
from mypy import myfunc

我导航到tmp文件夹，复制属性，然后粘贴到代码中。

Answer 2

简单的方法是更改执行目录。即使您已经挂载了Google Drive，执行也不会在该驱动器中进行。故事发生在/content/。您可以通过运行pwd检查这一点。通过运行cd path_to_ the_python_file_where_function_is_defined来更改它。然后执行import name_of_the_file

Answer 3

试试这个

from google.colab import drive
drive.mount('/content/gdrive')

然后

libdir = "/content/gdrive/My Drive/.../"
%run {libdir}MyModule.py

类似地，您可以对笔记本做:

%run {libdir}MyNotebook.ipynb

现在你可以使用你在MyNotebook.ipynb

中定义的所有内容了