QGIS2web keeps failing with python errors

[azstumbler]

Qgis2web will not return anything, it fails without generating any type of output. I have tried ti with some maps I have use it on previously without any issue and they are now failing. I have also used it with other computers, all with QGIS 3.36.0 and they all failed. I have tried it with older versions on QGIS and versions of qgis2web and it would work just find.

The information below was using a single feature map one with a polygon and another with just a line layer.

QGIS 3.36.0
qgis2web 3.18.2

python error tab.txt

[andreaordonselli]

Can you attach your data in a zip?

Another user told me that qgis2web doesn't work with the latest version of QGIS, but I still have to investigate.
It certainly works with the LTR 3.34 version.

[azstumbler]

I can verify that it does not work in the LTR 3.34 as that was one of the versions that I tried the current release of qgis2web and a previous release. Shapefile of the 2 layers I tried it with is attached. On Monday, March 11, 2024 at 02:08:59 PM MST, Andrea Ordonselli ***@***.***> wrote: Can you attach your data in a zip? Another user told me that qgis2web doesn't work with the latest version of QGIS, but I still have to investigate. It certainly works with the LTR 3.34 version. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[andreaordonselli]

Attaching files via email doesn't work. you should create a zip file and upload it to the github discussion. Thank you.

[agiudiceandrea]

@andreaordonselli, the symbollayer color property value in QGIS 3.36 is something like '190,178,151,255,rgb:0.74509803921568629,0.69803921568627447,0.59215686274509804,1' while the plugin expect it as '190,178,151,255' in

qgis2web/utils.py

Lines 632 to 633 in b7dc3d9

	def getRGBAColor(color, alpha):
	r, g, b, a = color.split(",")

See https://api.qgis.org/api/qgsfillsymbollayer_8cpp_source.html#l00355, https://api.qgis.org/api/qgscolorutils_8cpp_source.html#l00192

[azstumbler]

The 2 shp files were in one zip file

[andreaordonselli]

something is happening that doesn't allow you to attach, I still don't see the zip you upload. send it to me by email info@opengis.it
Thanks

[tomchadwin]

@andreaordonselli, the symbollayer color property value in QGIS 3.36 is something like '190,178,151,255,rgb:0.74509803921568629,0.69803921568627447,0.59215686274509804,1' while the plugin expect it as '190,178,151,255'

Is this a QGIS breaking API change, @agiudiceandrea?

[andreaordonselli]

by applying a simple style to the two levels qgis2web has no problems exporting.

openlayers:

leaflet:

What styles are you applying? can you export your styles in the following way and send them to me?

[agiudiceandrea]

@andreaordonselli, the symbollayer color property value in QGIS 3.36 is something like '190,178,151,255,rgb:0.74509803921568629,0.69803921568627447,0.59215686274509804,1' while the plugin expect it as '190,178,151,255'

Is this a QGIS breaking API change, @agiudiceandrea?

@tomchadwin, see: qgis/QGIS#55718 (comment) and subsequent comments.

[andreaordonselli]

@tomchadwin
@agiudiceandrea
I ask for your advice as an update would make qgis2web incompatible with previous versions of qgis. do I update and define the minimum version of qgis to use, or do I specify that it must be used with versions prior to the latest one, until an ltr version is released?

[tomchadwin]

@andreaordonselli Wrap new code to try to parse the new format in a try block, and put the existing code which parses the old format in the except clause. Worth adding a comment that the old format is deprecated, so it can be found and removed later.

[andreaordonselli]

Thanks for your advice, I solved it by acquiring only the first 4 values ​​and this will work with the old and new qgis.
can it be okay?

def getRGBAColor(color, alpha):
    r, g, b, a = color.split(",")[:4]
    a = (float(a) / 255) * alpha
    return "'rgba(%s)'" % ",".join([r, g, b, str(a)])

[tomchadwin]

Looks good to me. Thanks!