Qgis crash when importing pyproj from plugin or console

[jbeilin]

I installed on ubuntu 18.04 :

• Qgis 3.12.3
• pyproj 2.6.1.post1 using pip3

Each time I try to import pyproj in a plugin or in a console script in Qgis console, Qgis crashes. This code works in spyder3.

import pyproj
#print(pyproj.proj_version_str, pyproj.show_versions())
crs4326 = pyproj.CRS.from_epsg(4326)
crs2154 = pyproj.CRS(2154)
p = pyproj.Proj(crs2154)
transformer = pyproj.Transformer.from_crs(crs2154, crs4326, always_xy=True)
lo, la, h = transformer.transform(700000, 6600000, 0)
mu = p.get_factors(lo, la).meridional_scale
print(mu)

[snowman2]

Did you also ask the question here: https://github.com/qgis/QGIS?

[snowman2]

@jbeilin mind providing these details:

• How did you install PROJ? Where is it installed?
• Please provide all commands/steps you used to install PROJ.
• PROJ version (Execute proj command and give version here.)
• Python version (python -c "import sys; print(sys.version.replace('\n', ' '))")
• Operation System Information (python -c "import platform; print(platform.platform())")

[snowman2]

Also, how did you install QGIS?

[jbeilin]

@jbeilin mind providing these details:

* How did you install PROJ? Where is it installed?

Proj seems to be installed twice. Once with Qgis (v4.9.3) and one with pyproj (6.3.1)

* Please provide all commands/steps you used to install PROJ.

Proj on Qgis was installed with apt commands from official servers.
pyproj was installed with pip3

* PROJ version (Execute `proj` command and give version here.)

$ proj

Rel. 4.9.3, 15 August 2016

* Python version (`python -c "import sys; print(sys.version.replace('\n', ' '))"`)

python3 -c "import sys; print(sys.version.replace('\n', ' '))"
3.6.9 (default, Apr 18 2020, 01:56:04) [GCC 8.4.0]

* Operation System Information (`python -c "import platform; print(platform.platform())"`)

python3 -c "import platform; print(platform.platform())"
Linux-5.3.0-59-generic-x86_64-with-Ubuntu-18.04-bionic

[jbeilin]

Also, how did you install QGIS?

Qgis was installed using the standard process on https://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu

[jbeilin]

Did you also ask the question here: https://github.com/qgis/QGIS?

not yet

[jbeilin]

Did you also ask the question here: https://github.com/qgis/QGIS?

I have just submitted the issue : qgis/QGIS#37289

[snowman2]

Looks like it was answered in the QGIS issue.

One thought I had was you could try to install both with conda and see if it works:

conda -c conda-forge qgis pyproj

[jbeilin]

I put a solution in qgis/QGIS#37289