Wav2Vec2ForCTC and Wav2Vec2Tokenizer

Beginners
1

Having installed transformers and trying:

import transformers
import librosa
import soundfile as sf
import torch
from transformers import Wav2Vec2ForCTC
from transformers import Wav2Vec2Tokenizer

#load model and tokenizer
tokenizer = Wav2Vec2Tokenizer.from_pretrained(“facebook/wav2vec2-base-960h”)
model = Wav2Vec2ForCTC.from_pretrained(“facebook/wav2vec2-base-960h”)

I get:

ImportError Traceback (most recent call last)
in
3 import soundfile as sf
4 import torch
----> 5 from transformers import Wav2Vec2ForCTC
6 from transformers import Wav2Vec2Tokenizer
7

ImportError: cannot import name ‘Wav2Vec2ForCTC’ from ‘transformers’ (c:\python\python37\lib\site-packages\transformers_init_.py)

How I install/get Wav2Vec2ForCTC and Wav2Vec2Tokenizer ???

2

This probably means you don’t have the latest version. You should check your version of Transformers with

import transformers
print(transformers.__version__)

and if you don’t see at least 4.3.0, you will need to upgrade your install.

1 Like
3

I have the same issue with Windows 10.

pip install transformers[torch]==4.3

import transformers
print(transformers.version)
4.3.0
from transformers import Wav2Vec2Tokenizer, Wav2Vec2ForCTC
Traceback (most recent call last):
File “”, line 1, in
ImportError: cannot import name ‘Wav2Vec2ForCTC’

1 Like
4

I had the same issue. I upgraded the transformers version from 4.3.0 to 4.3.2 with
pip install transformers==4.3.2
and that worked for me. Also, upgrade your PyTorch to its latest version 1.7 with
pip install torch==1.7
that avoids error while loading pre-trained weights in the next step.

4 Likes
6

use " from transformers import *" instead of “from transformers import Wav2Vec2Tokenizer, Wav2Vec2ForCTC”

1 Like