18

I'm trying to solve my issue in my own but I couldn't, I'm trying to run this code in every format you can imagine and in ArcGIS pro software it's the same I can't find this error message in any other issue. From similar issues, it seems some data files could be missing?

import geopandas as gpd
import json
import numpy as np
from shapely.geometry import LineString, Point, box
import ast
from pyproj import Proj

paths = road_features.SHAPE.map(lambda x: np.array(ast.literal_eval(x)["paths"][0]))
pathLineStrings = paths.map(LineString)
gdf = gpd.GeoDataFrame(road_features,geometry=pathLineStrings)
#gdf.crs = {'init': 'epsg:3857'}
gdf.crs = {'init': 'epsg:4326'}

gdf = gdf.to_crs({'init': 'epsg:4326'})

i get this error

RuntimeError: b'no arguments in initialization list'

also i tried it in arcgis pro i got the same

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\Lib\site-packages\geopandas\geodataframe.py", line 443, in to_crs
    geom = df.geometry.to_crs(crs=crs, epsg=epsg)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\Lib\site-packages\geopandas\geoseries.py", line 304, in to_crs
    proj_in = pyproj.Proj(self.crs, preserve_units=True)
  File "C:\Program Files\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\Lib\site-packages\pyproj\__init__.py", line 362, in __new__
    return _proj.Proj.__new__(self, projstring)
  File "_proj.pyx", line 129, in _proj.Proj.__cinit__

RuntimeError: b'no arguments in initialization list'
Maram Mubarak
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    I ran into an error on an Anaconda, Windows 10 installation in which the pyproj package's file datadir.py was pointing to the wrong location for the proj file `epsg`. (`.../Anaconda3\share\proj` instead of `...\Anaconda3\Library\share`). Editing datadir.py fixed the issue for me. – Stephen McAteer Aug 16 '19 at 00:21
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    Interestingly, if I launch either JupyterLab or Jupyter Notebook from Anaconda Navigator or Anaconda Prompt, rather than from an Anaconda Powershell Prompt, I get no errors! Shouldn't these all be the same? Why is Anaconda Powershell Prompt messing up? – Chad Aug 29 '19 at 18:54
  • I have exactly this same problem. Works fine when starting jupyter from Miniconda prompt but not when starting from Miniconda Powershell prompt. Thanks for the tip, any idea what's going on? – user1894205 Oct 01 '19 at 10:56

8 Answers8

26

to make sure this is pyproj error rather than geopandas.

import pyproj
pyproj.Proj("+init=epsg:4326")

if the above runtime error is the same, we can be sure this error is due to pyproj.

just conda remove pyproj and install it with pip.

pip install pyproj

at least this works for me.

Today(July 30), I resintalled from miniconda, conda remove pyproj did not work for me, instead I pip uninstall pyproj and pip install pyproj makes everything fine.

Revolucion for Monica
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Stone Shi
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    Thank you! Removing by conda, then pip install pyproj. It works for me. – Xiaojian Chen Jun 20 '19 at 12:16
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    In uninstalling pyproj, it may be easier to run `pip remove pyproj --force` to avoid uninstalling geopandas or other dependencies – Gene Burinsky Sep 26 '19 at 20:37
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    Ran into the same problem, and I used `pip install --force-reinstall pyproj` to avoid `conda remove pyproj` which removes packages that depend on `pyproj` like `geopandas` – Allen Jul 13 '20 at 05:50
15

The problem is problably within the pyproj instalation of Anaconda on Windows platform. Just like Stephen said, solution is to edit the path in "datadir.py" (located in ...Anaconda3\Lib\site-packages\pyproj).

Correct path is ".../Anaconda3/Library/share". Make sure full path is complete (may contain username etc.). I also needed to change \ to /. This change worked for me. Yes and after this change, it is necesary to restart Spyder (or whatever you use).

Dorregaray
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7

Is there an initial crs defined? I ran into the same problem only when I passed only the epsg command: gdf.to_crs('epsg:4326').

As you show

my_geoseries.crs = {'init' :'epsg:3857'}

should be the first step and then transforming to

gdf = gdf.to_crs({'init': 'epsg:4326'})

If you are working in ArcGIS you could also check in the properties whether the initial epsg is defined ?

CDJB
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Trish
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7

I'm using Pycharm. I had to use a combination of both Stone Shi's remark and Dorregaray's.

import pyproj
pyproj.Proj("+init=epsg:4326")
> RuntimeError: b'no arguments in initialization list'

According to Stone Shi, the above proves that it's a pyproj err. So I used Pycharm->Settings and reinstalled pyproj. Then

import pyproj
pyproj.Proj("+init=epsg:4326")
> RuntimeError: b'no arguments in initialization list'

So, it's a pyproj err but Pycharm->Settings reinstalling pyproj does not help me.

I then edited my C:\Anaconda3\Lib\site-packages\pyproj\datadir.py from: 

pyproj_datadir="C:/Anaconda3\share\proj"

to Dorregaray's:

pyproj_datadir="C:\Anaconda3\Library\share"

Then test again:

import pyproj
pyproj.Proj("+init=epsg:4326")
>Process finished with exit code 0

No Runtime Error!

Then test on my 

wgs84  = data.to_crs({'init': 'epsg:4269'})
>Process finished with exit code 0
JDOaktown
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3

For me upgrading pyproj and geopandas, fixed this issue:

pip install pyproj --upgrade 
pip install geopandas --upgrade
Dr. Arslan
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1

Using Geopandas, try that (it should work) : 

gdf = gpd.GeoDataFrame(gdf, geometry=gdf['geometry'])
gdf.crs = {'init' :'epsg:2154'}
gdf = gdf.to_crs({'init' :'epsg:4326'})

You should redefine well your geodataframe, then define the initial geo referential and finally convert it in the good one. Don't forget to drop the NaN if there are any.

Willy_Fro
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1

you can force reinstall pyproj from pip directly using

pip install --upgrade --force-reinstall pyproj

instead of uninstalling and reinstall again which will also uninstall all the dependent libraries

Mostafa Farrag
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0

I came across the same error. I was working with Python version 3.6.3 and Geopandas version 0.4.0. It was solved by using the following instead of df = df.to_crs({'init': 'epsg:4326'}):

df = df.to_crs(epsg=4326)
MMAThijssen
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