No module named flask_mongoengine

Question

I'm having a problem importing flask-mongoengine. The error I'm getting is:

ImportError: No module named flask_mongoengine

I am using a virtual environment (installed using sudo), with the following requirements.txt:

click==6.7
Flask==0.12.2
Flask-Login==0.4.0
flask-mongoengine==0.9.3
Flask-WTF==0.14.2
itsdangerous==0.24
Jinja2==2.9.6
MarkupSafe==1.0
mongoengine==0.13.0
pymongo==3.4.0
requests==2.2.1
six==1.10.0
Werkzeug==0.12.2
WTForms==2.1

I installed these using:

sudo -H pip install -r requirements.txt

Everything else seems to be imported and working fine, but flask-mongoengine is giving me issues. I've searched for answers, uninstalled and reinstalled many times, but cannot find the problem. I feel like it may be a problem with my PYTHONPATH? Or with virtualenv? But for now I am at a loss.

Essentially: pip recognizes that it's installed, but I can't import it in my app.py.

Any help with this is greatly appreciated. If you need more info, I will provide to the best of my ability.

Thanks!

Did you try to install .whl file from https://pypi.python.org/pypi/flask-mongoengine? — BatyaGG, Aug 05 '17 at 23:16
I just tried installing via the .whl file, but there was no change. When I tried, pip told me that the package and dependencies were already installed — Alexander Brown, Aug 05 '17 at 23:39
Do you have several pythons on your PC like several versions of it? — BatyaGG, Aug 05 '17 at 23:53
I also have python3.5 installed. Do you think that this might be causing the issue? — Alexander Brown, Aug 06 '17 at 17:54
Yes it can be, seems like your pip told you about your Python 3.5. Write in your command line this: pip2.7 install flask-mongoengine, and check if it works for you — BatyaGG, Aug 06 '17 at 23:32
Unfortunately installing with pip2.7 didn't solve the problem — Alexander Brown, Aug 08 '17 at 23:59

score 1 · Answer 1 · answered Aug 05 '17 at 23:13

1

Try installing

pip install flask-mongoengine

answered Aug 05 '17 at 23:13

skr

2,146
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Yes, I've tried it installing it individually this way, but it has not worked – Alexander Brown Aug 05 '17 at 23:38

score 0 · Answer 2 · answered Aug 06 '17 at 00:04

0

You shouldn't use sudo in virtual environments. Just

pip install -r requirements.txt

after activating the virtual environment.

answered Aug 06 '17 at 00:04

phd

82,685
13
120
165

Thanks for the advice. Still stuck – Alexander Brown Aug 06 '17 at 17:55

score 0 · Answer 3 · answered Jan 15 '18 at 02:36

0

Probably you need update something, try pip install -U -r requirements.txt

answered Jan 15 '18 at 02:36

Juliano Petronetto

1,067
13
15

No module named flask_mongoengine

3 Answers3