Converting coordinates to longitude and latitude using pyproj

Question

I am trying to convert coordinates to longitude and latitude using Pyproj, however I get an error that I am unable to solve:

b'no arguments in initialization list'

from pyproj import Proj, transform

inProj = Proj(init='epsg:3942')
outProj = Proj(init='epsg:4326')
x1,y1 = 685833.3,6236964.799
x2,y2 = transform(inProj,outProj,x1,y1)
print(x2,y2)

Any idea how I can solve this?

Many thanks for your help!

The error message would help – Iakovos Belonias May 10 '19 at 16:12 — Iakovos Belonias, May 10 '19 at 16:12
b'no arguments in initialization list' – Peslier53 May 10 '19 at 16:13 — Peslier53, May 10 '19 at 16:13
How did you install the module? What OS you have ? – Iakovos Belonias May 10 '19 at 16:18 — Iakovos Belonias, May 10 '19 at 16:18
Did you check my solution? – Iakovos Belonias May 11 '19 at 08:50 — Iakovos Belonias, May 11 '19 at 08:50

score 0 · Answer 1 · answered May 10 '19 at 16:21

You activate the environment and then install everything other than Python in it. But latest proj builds set PROJ_LIB and you need to activate the environment after installing it. Easiest fix was to request all needed packages when creating the environment, and then activate it.

Make sure you:

Youare installing in an environment, not the root.
activate after installing proj (or pyproj).
Make sure you have Cython installed.

I've created a simple virtual environment with virtualenv for python3.7 and your script runs fine.

Converting coordinates to longitude and latitude using pyproj

1 Answers1