Window10 : cannot import name ‘as_tensor’
Just setting fastai 0.7 in my Window10 Notebook (Not on cloud since I will just do only the cpu things in my notebook)
Here’s all of the step I use. (Studying Introduction to Machine Learning for Coders)
-
Basic Environment Setup in Window10
Fastai v0.7 install issues threadgit clone https://github.com/fastai/fastai.git cd fastai conda env create -f environment-cpu.yml conda activate fastai-cpu jupyter notebook -
No module named ‘fastai’
I open lesson1-rf jupyter and follow along the first lesson ML. However, I encountered the problem on the linefrom fastai.imports import * from fastai.structured import * No module named ‘fastai’
Error: No module named 'fastai' works out, so I insert the code
import sys
sys.path.append ('../../')
above from fastai…
- No module named ‘dataclasses’
ModuleNotFoundError: No module named 'dataclasses'
So in the fastai-cpu environment, I conda install in the anaconda prompt
conda install -c conda-forge dataclasses
It solve this issue! Great!
- No module named ‘fastprogress’
GitHub - fastai/fastprogress: Simple and flexible progress bar for Jupyter Notebook and console
conda install -c fastai fastprogress
In the anaconda prompt, and it solved this issue 
5. ImportError: cannot import name ‘as_tensor’
Now, I hit the wall because in the forum and google include only for google colab and pytorch torchtext doesn’t have conda install for window
https://anaconda.org/derickl/torchtext
In the forums the thread are
ImportError: cannot import name 'as_tensor'? ->google colab
Fastai v0.7 install issues thread - #40 by Alankar ->google colab
So from my perspective, it looks like my issue is not shown in the forum yet so I decided to post.
Now after this is what I have done so far in anaconda prompt :
(fastai-cpu) C:\Users\winsu>pip install torchtext==0.2.3
Requirement already satisfied: torchtext==0.2.3 in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (0.2.3)
Requirement already satisfied: requests in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (from torchtext==0.2.3) (2.19.1)
Requirement already satisfied: tqdm in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (from torchtext==0.2.3) (4.26.0)
Requirement already satisfied: idna<2.8,>=2.5 in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (from requests->torchtext==0.2.3) (2.7)
Requirement already satisfied: urllib3<1.24,>=1.21.1 in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (from requests->torchtext==0.2.3) (1.23)
Requirement already satisfied: certifi>=2017.4.17 in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (from requests->torchtext==0.2.3) (2018.10.15)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in c:\users\winsu\anaconda3\envs\fastai-cpu\lib\site-packages (from requests->torchtext==0.2.3) (3.0.4)
thinc 6.10.0 requires pathlib<2.0.0,>=1.0.0, which is not installed.
spacy 2.0.4 requires pathlib, which is not installed.
pexpect 4.6.0 requires ptyprocess>=0.5, which is not installed.
msgpack-numpy 0.4.3.2 requires msgpack>=0.3.0, which is not installed.
mkl-random 1.0.1 requires cython, which is not installed.
distributed 1.23.3 requires msgpack, which is not installed.
spacy 2.0.4 has requirement msgpack-numpy==0.4.1, but you'll have msgpack-numpy 0.4.3.2 which is incompatible.
spacy 2.0.4 has requirement regex==2017.4.5, but you'll have regex 2017.11.9 which is incompatible.
spacy 2.0.4 has requirement thinc<6.11.0,>=6.10.1, but you'll have thinc 6.10.0 which is incompatible.
You are using pip version 10.0.1, however version 18.1 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
Since there is no conda install torchtext (only Mac could use conda).
I just tried pip and it shown errors like that which I don’t particularly want to reinstall/downgrade to the specific version indicated in the prompt.
Since I don’t know whether the current version will be needed anywhere else.
Just a side note:
import sys
print(sys.path)
Shows
['', 'C:\\Users\\winsu\\Anaconda3\\envs\\fastai-cpu\\python36.zip', 'C:\\Users\\winsu\\Anaconda3\\envs\\fastai-cpu\\DLLs', 'C:\\Users\\winsu\\Anaconda3\\envs\\fastai-cpu\\lib', 'C:\\Users\\winsu\\Anaconda3\\envs\\fastai-cpu', 'C:\\Users\\winsu\\Anaconda3\\envs\\fastai-cpu\\lib\\site-packages', 'C:\\Users\\winsu\\Anaconda3\\envs\\fastai-cpu\\lib\\site-packages\\IPython\\extensions', 'C:\\Users\\winsu\\.ipython', '../../', '../../', '../../', '../../']