flask_uploads: ImportError: cannot import name 'secure_filename'

Question

I want to create a form that allows to send a picture with a description using flask forms. I tried to use this video: https://www.youtube.com/watch?v=Exf8RbgKmhM

but I had troubles when launching app.py:

➜  website git:(master) ✗ python3.6 app.py
Traceback (most recent call last):
  File "app.py", line 10, in <module>
    from flask.ext.uploads import UploadSet, configure_uploads, IMAGES
ModuleNotFoundError: No module named 'flask.ext'

I had to replace flask.ext.uploads by flask_uploads but now I get:

Traceback (most recent call last):
  File "app.py", line 10, in <module>
    from flask_uploads import UploadSet, configure_uploads, IMAGES
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/flask_uploads.py", line 26, in <module>
    from werkzeug import secure_filename, FileStorage
ImportError: cannot import name 'secure_filename'

My imports and config looks like this:

from datetime import datetime
from flask_sqlalchemy import SQLAlchemy
from flask import Flask, session, render_template, url_for, redirect, flash, request
from wtforms import Form, fields,TextField, StringField, PasswordField, BooleanField,validators
from wtforms.validators import InputRequired, Email, Length, DataRequired
from flask_wtf import FlaskForm
from flask_uploads import UploadSet, configure_uploads, IMAGES
from flask_login import LoginManager, UserMixin, login_user, login_required, logout_user, current_user

I couldn't solve this issue, do you have any idea of what can I do ?

score 107 · Accepted Answer · edited May 11 '20 at 17:06

107

In flask_uploads.py

Change

from werkzeug import secure_filename,FileStorage

to

from werkzeug.utils import secure_filename
from werkzeug.datastructures import  FileStorage

edited May 11 '20 at 17:06

Nandu Raj

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answered May 11 '20 at 12:33

true man

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Very good. Tank you! It worked for me. – viana Feb 18 '22 at 16:22
Actually, don't do this, or you cannot update `Flask-Uploads` any more. See other answers for a better solution. – Jürgen Gmach Jun 02 '22 at 06:40

score 34 · Answer 2 · edited Oct 23 '20 at 14:39

34

According to this issue, it is a bug related to the current version 1.0.0 of workzeug. It's merged but not yet published in pypi. The workaround know until now is to downgrade from werkzeug=1.0.0 to werkzeug==0.16.0

So for do that you just need run the command:

pip install -U Werkzeug==0.16.0

Looking in the release notes from werkzeug there is a version 0.16.1, but in bug report there is no evidence that using that version could be of any help.

edited Oct 23 '20 at 14:39

answered May 06 '20 at 06:27

Danizavtz

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Thank you for your answer, I did this: Successfully uninstalled Werkzeug-1.0.0 Successfully installed Werkzeug-0.16.0 but I still get exactly the same error that ends with ImportError: cannot import name 'secure_filename' – Santeau May 06 '20 at 23:00
2

Can u try to install this lib, see if it solves: `pip install Flask-Uploads` – Danizavtz May 06 '20 at 23:29
It was already installed (it printed Requirement already satisfied). – Santeau May 08 '20 at 05:39
1

Actually don't do this, or you will stick to a very old and outdated version of Werkzeug. Please see the other answers for a better solution. – Jürgen Gmach Jun 02 '22 at 06:41

score 18 · Answer 3 · answered Jun 28 '20 at 13:49

18

You are using a broken version of Flask-Uploads.

Unfortunately, the maintainer of the package decided not to release a new version of the package to PyPi.

You can use Flask-Reuploaded as a drop-in replacement, which fixes your problem.

https://pypi.org/project/Flask-Reuploaded/

answered Jun 28 '20 at 13:49

Jürgen Gmach

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Thanks, this worked :-) – Paul Strobel Oct 02 '21 at 20:05

score 0 · Answer 4 · answered May 08 '20 at 05:41

0

I couldn't solve the problem with flask-upload but followed this video and it allowed me to do what I wanted to do: https://www.youtube.com/watch?v=6WruncSoCdI

answered May 08 '20 at 05:41

Santeau

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score 0 · Answer 5 · answered Sep 21 '20 at 14:35

0

I ended up putting a

-e git://github.com/maxcountryman/flask-uploads.git#egg=elasticutils

in my requirements.txt file to get the latest version of flask-uploads from git.

answered Sep 21 '20 at 14:35

user6855334

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flask_uploads: ImportError: cannot import name 'secure_filename'

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