Error installing plug-in (error importing pandas)

[yipjackie]

After a clean install of QGIS 3.10 (downloaded the long-term release for Mac OS from https://www.qgis.org/en/site/forusers/download.html) and the First Aid plug-in, the installing of the CanFlood plug-in gave an error as shown below - suggesting that it needs pandas 0.25.3 or higher.

Also included here the About QGIS page for reference

[s4lt3d]

Pandas not installed or incorrect version installed

Some versions of QGIS may not come with all required python packages.

This issue can be solved with two simple commands shown below.

Example Error Message on Windows

Fixing the issue by installing Pandas manually

Open the Python Console in QGIS

The Python Console should appear in QGIS and should look similar to to this.

Type the following commands in the console.

import pip
pip._internal.main(['install', 'pandas'])

Conclusion

Running the two commands should correctly install pandas, which will allow CanFlood Alpha to open successfully.

[yipjackie]

Thanks Walter! I've had to modify the command slightly as in the screenshot. I think it shows it is still using pandas 0.24.2

[cefect]

If you installed QGIS through OSGeo, a better solution is to go through the OsGEO4w shell (executed from this .bat file... sometimes there is a shortcut). On Windows, ensure you right click > run as Administrator:

run these commands:

py3_env
python -m pip install pandas

If installing other dependencies, replace 'pandas' with whatever you're trying to install.

You can then test it was installed properly by executing these commands (in the same session):

python
import pandas
pandas.__version__

You should see '0.25.3' or higher displayed

If this still fails, try uninstalling qgis, and re-installing with the OSGeo4W Network Installer, Advanced Install option. On the 'Select Packages' page, type 'qgis-ltr-full' into the search bar, expand 'Desktop' and ensure the 'New' (or 'Current') version shows 3.10-2 or higher. Then type 'python3-pandas' into the search bar, and ensure 'New' shows 1.0.1-1 or higher. Click through and this should install Qgis 3.10 nicely with Pandas.

This procedure should work for any dependency error