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 ?
Answers:
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.
In flask_uploads.py
Change
from werkzeug import secure_filename,FileStorage
to
from werkzeug.utils import secure_filename
from werkzeug.datastructures import FileStorage
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.
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.
For Werkzeug version 2.1.2, just import secure_filename as:
from werkzeug.utils import secure_filename
Use flask-Reuploaded rather than flask-uploads
it happens when you don’t use werkzeug but still showing error so THE SOLUTION IS–
pip install Flask-Reuploaded
Use this:
from werkzeug.utils import secure_filename
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 ?
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.
In flask_uploads.py
Change
from werkzeug import secure_filename,FileStorage
to
from werkzeug.utils import secure_filename
from werkzeug.datastructures import FileStorage
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.
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.
For Werkzeug version 2.1.2, just import secure_filename as:
from werkzeug.utils import secure_filename
Use flask-Reuploaded rather than flask-uploads
it happens when you don’t use werkzeug but still showing error so THE SOLUTION IS–
pip install Flask-Reuploaded
Use this:
from werkzeug.utils import secure_filename