Deployment Error about rosbag

[RickLin]

I am trying to deploy my app to the web but encountered an error:

ERROR: Could not find a version that satisfies the requirement rosbag (from versions: none)

My requirement file is generated by pipreqs but it seems not workable. How can I fix this error?

[snehankekre]

Hi @RickLin, welcome to the Streamlit Community!

Could you share a link to your repo with the requirements file?

AFAIK, rosbag is not available on PyPI. Did you mean rosbags?

[RickLin]

Thanks for your quick response.
As for the link of the requirement file, try this one: RiskVIz_Momenta/requirements.txt at main · RickLin616/RiskVIz_Momenta · GitHub.
As for the PyPI, I use rosbag instead of rosbags. The link which offers the detailed information about rosbag API is also attached for your convenience. wiki.ros.org/rosbag/Code API

[snehankekre]

rosbag is not a Python package available on PyPI and as such cannot be installed via requirements.txt.

[RickLin]

[RickLin]

Rosbag and rosbags are two different libraries.

[snehankekre]

How do you install Rosbag locally?

[RickLin]

Just “pip install rosbag”. BTW I use ubuntu.

[snehankekre]

That’s curious Could you try pip uninstall rosbag followed by

pip install rosbag --no-cache-dir

and share a screenshot of your terminal logs?

rosbag does not exist on PyPI and should be impossible to simply pip install rosbag:

Search results

https://pypi.org/project/rosbag/

[RickLin]

[RickLin]

Yep, a “strange” library

[RickLin]

Thanks for your reply. I will try to learn rosbags and use it to replace rosbag in my file.

[RickLin]

My bad. I installed it with
‘’’
pip install --extra-index-url https://rospypi.github.io/simple/ rospy rosbag
‘’’
It is not a standard python library. So how can i fix it in my requirement file?

[snehankekre]

Hi @RickLin

Thank you for clarifying that rosbag uses an index other than PyPI! Here’s what your requirements.txt should contain:

joblib==1.1.0
matplotlib==3.5.1
numpy==1.21.5
pandas==1.4.2
--extra-index-url https://rospypi.github.io/simple/
rospy
rosbag
scikit_learn==1.1.2
setuptools==59.6.0
Shapely==1.8.2
streamlit==1.12.0
torch==1.12.0
torchvision==0.13.0
tqdm==4.64.0

[RickLin]

Received. Thanks from the bottom of my heart.