Questions tagged [python-3]
Use this tag when Python 3 (or any of its dot releases) is the version you are using.
269
questions
0
votes
0answers
26 views
ModuleNotFoundError: No module named '_gdal' on mac machine
I have installed gdal in the following way
python3 -m pip install --global-option=build_ext --global-option="-I/usr/include/gdal" GDAL=='gdal-config --version'
If I try to call it
from osgeo ...
0
votes
1answer
36 views
Extracting only roads through Overpass API query
I am using overpass API and querying the api for ways,as a result it gives points, whereas I need only lines, multiline strings and polygons. But while using the following code, I get a geojson file ...
0
votes
0answers
24 views
How to check integrity of Python-processed shapefile
In my QGIS project of American railroads, using USGS Base Topo Layer and shapefiles giving railroad details as of 2015, I have used the Python-3 pyshp library to edit the dbf database, adding some ...
0
votes
2answers
78 views
Executing QGIS tools in Python from Linux Shell [duplicate]
I would like to execute a Python script which uses QGIS Processing tools.
On Ubuntu 20.x I installed qgis, qgis-common, python3-qgis and python3-qgis-common.
My objective is to execute the tool Exploe ...
1
vote
0answers
34 views
Deleting GDAL created raster
I am simply trying to delete a TIF that I created with GDAL. I have tried, simply, to use shutil which errors with:
NotADirectoryError: [WinError 267] The directory name is invalid:
'T:/p003M01p0001/...
1
vote
0answers
40 views
Why does my arcpy script's da.UpdateCursor get slower the longer it runs?
I have a layer containing pedestrian crosswalks (line features), and two layers containing street data: street segments (line features) and street nodes (point features). Every street segment has a ...
3
votes
0answers
34 views
CalledModuleError: Module run None g.gisenv -n ended with error
I am trying to use r.horizon GRASS module(version GRASS 7.8) in Python script. But I couldn't able to access the grass modules. Everytime, I am getting the following error.
File "C:\OSGEO4~1\apps\...
2
votes
0answers
28 views
GRASS GIS: r.out.gdal raises an exception and hangs if it's called multiple consecutive times
I'm using a small python routine (grass.script, pygrass) to handle several operations on sentinel2 imagery. I'm calling r.out.gdal inside the script and a very annoying problem occurs: when it is ...
0
votes
1answer
53 views
Using GRASS i.segment in Python 3 stand alone script on Windows10
I installed GRASS GIS 7.8.1 on Windows 10 using a OSGeo4W.
I would like to use in a stand alone Python 3 script the i.segment GRASS tool.
I saw some related questions (e.g., Using GRASS GIS in Python ...
0
votes
1answer
82 views
Reprojection with gdal.Warp doesn't work
I am trying to reproject a raster. I have tried gdal.Warp and it doesn't work.
RuntimeError: Cannot find coordinate operations from 'EPSG:6257' to 'EPSG:6686'.
Working in Python 3, Windows 64bit
...
0
votes
0answers
16 views
CSV to NetCDF Python HDF error
I'm basically cribbing code from Esri and other online sources to convert a CSV to a NetCDF. I get an HDF error on writing values to the variables. X and Y values are UTM coordinates if that matters. ...
0
votes
1answer
48 views
Can't install Packages with Cloned ArcGIS Pro Python
I have a new installation of ArcGIS Pro 2.6 on a Windows 10 computer. I have successfully cloned Python because I want to install third-party packages to this cloned environment and still use arcpy.
...
1
vote
1answer
36 views
Identifying coordinate format from exif data
I am using the Python exif module to extract coordinates from photos. The methods for doing so are: gps_latitude and gps_longitude.
The output for latitude is: (32.0, 37.0, 37.15) and longitude is: (...
1
vote
1answer
45 views
Calculating dates and using arcpy.CalculateField_management(
I am in the process of converting my scripts from python 2.7 to 3.x
I am trying to calculate a date field with a datetime object
exactScriptTime = datetime.datetime.now()
exactScriptTime = ...
9
votes
2answers
301 views
What's the difference between QgsPoint, QgsPointXY and QgsGeometry.fromPointXY(QgsPointXY()) in PyQGIS?
I am using PyQGIS. What is the difference between
QgsGeometry.fromPointXY(QgsPointXY(x,y)),
QgsPointXY(x,y) and
QgsPoint(x,y)?
When I print these 3 options, I get:
print( QgsGeometry.fromPointXY(...
1
vote
1answer
65 views
How to visualize a NetCDF Dataset
Suppose I have a rather large NetCDF file that I open as a dataset using xarray.
import xarray
nc_in = r"....\D_P_WGS84_comp.nc"
nc_ds = xarray.open_dataset(nc_in)
It is composed of ...
0
votes
1answer
33 views
QGIS how to activate the checkboxes of the constractions in the attribute form by Python code and add expressions?
I tried using this type of line for the edit form , but its only for versions 2.8 but I don't know how is for new version 3.0 including "Enforce not null constraint".
formConfig = layer....
1
vote
1answer
241 views
Adding compression to a NetCDF file using xarray
I have a raster that I am trying to compress and convert to a NetCDF format with compression level = 9 using the xarray package. I assume that the compression is added using the encoding parameter as ...
1
vote
3answers
65 views
Drawing points in layer given its coordinates using PyQGIS [closed]
I want to draw points in a certain polygon layer. Specifically, I want to display the centroid over each respective feature. All this using PyQGIS.
So far, none of the answers I found helped me. I am ...
3
votes
0answers
55 views
Convert .grib2 in triangular grid to regular grid
I have ICON datasets (.grib2.bz2 file format) from Deutscher Wetterdienst (DWD) in triangular grid that I would like to transform to a regular grid. Currently, I run the following statement in my ...
0
votes
0answers
39 views
PyQGIS atlas composer export to PNG with specific name
I want to use PyQGIS3 to export some map composer using atlas,In this task I want to export only one feature from atlas layers to PNG image with specific unique name file.
output='/home/username/...
0
votes
0answers
19 views
gdal.Open() returns None for hdf5 file
I realize there isn't much information here but I have an hdf5 file I want gdal to recognize in python. I have tried the following:
import gdal
filename = 'I:/ppl/user/GFED/GFED4.1s_1997.hdf5'
os....
0
votes
0answers
63 views
Adding QGIS coordinate, scale, magnifier and rotation toolbar into custom PyQGIS canvas
I was wondering if it is possible to add a toolbar with coordinate, scale magnifier, and rotation such as the one in QGIS Desktop to a custom PyQGIS canvas on a standalone application.
below is a ...
0
votes
1answer
96 views
Using GeoPandas generated .gpkg in ArcMap
I am using GeoPandas to create .gpkg files. Using GeoDataFrame.to_file()
When opening the files in ArcMap, it takes a long time updating the file extent. Files already have an spatial index as this is ...
0
votes
0answers
31 views
CesiumJS:3Dtiles tileset path? (Windows)
I'm trying to load and display my 3D tiles file with CesiumJS on my Window Station and Chrome web browser.
Cesium server seems to running fine locally. When I type the 'npm start` command via one ...
2
votes
0answers
21 views
Polygonize RGB mage considering all 3 bands simultaneously
I'm using the rasterio.features.shapes method to generate GeoJSON information from a PNG file. This answer shows what I'm trying to do, except I need to analyze the RGB bands simultaneously otherwise ...
0
votes
0answers
52 views
ArcGIS Pro Python install causing issues with importing packages
I've looked at several posts and articles and I can't seem to find a solution to this. I need to use jenkspy for a specific task but my Python 3x was installed with a software called ArcGIS Pro that ...
0
votes
2answers
2k views
ModuleNotFoundError: No module named '_gdal'
I am using Python 3.6 and still having this problem,, although I have tried to uninstall both numpy and GDAL and installed them again in the order numpy then GDAL
I am using Windows 10.
This was my ...
0
votes
0answers
15 views
Reproject MOD13Q1 in GDAL using the gringpoints
I am working with the MODIS MOD13Q1 vegetation product and the reprojection using gdal is fine, however I wish to be more precise and use the GRING to accurately warp the data into wgs 84(epsg:4326). ...
0
votes
0answers
164 views
Converting NetCDF to Grib2 in Python on native Windows. Which package?
Problem statement:
I need to implement an easy-to-share script compatible with Windows environment that allows me to open a NetCDF, manipulate it, and save it in Grib2 format.
Attempt 1: iris / iris-...
0
votes
0answers
123 views
Printing a degree symbol (“º”) yields “unknown symbol” (question mark in romb) via Python
I am working with QGIS 2.14.3, I just create a JSON file for detecting text, numbers, bearing and distance with OCR process using python 3 with pytorch, successfully I completed for creating a JSON ...
0
votes
0answers
15 views
User defined folder location for QGIS3 temp files in Pycharm
I set up user defined paths for temporary files in the QGIS version that I'm using (settings -> options -> systems). When I run code within QGIS3 the temporary files are saved in the indicated ...
0
votes
1answer
29 views
Populate a combobox with vector layer name in QGIS 3.X plugin [closed]
I'm updating a QGIS 2.14 Python code plugin to QGIS 3.X.
I'm stuck in the attribution of vector name in combobox.
The problem is that I don't have any error message but the combobox aren't filled at ...
0
votes
1answer
29 views
ST_Union on Rasters in Geoalchemy2 using ORM
I am attempting to perform a union on two rasters I pick from my postgis database using GeoAlchemy2.
I have a Raster table defined:
from geoalchemy2 import Raster
from sqlalchemy.sql import func
Base ...
3
votes
1answer
557 views
Using shapely interpolate to evenly re-sample points on a linestring geodataframe at specified interval
I have a GeoPandas LineString GeoDataFrame. I am trying to evenly interpolate the spacing of the nodes that make up each line, with a couple constraints: keep endpoints unchanged, and specify maximum ...
1
vote
1answer
117 views
Using pyproj inverse transform with GeoPandas and GroupBy + SortBy constraints
I am using pyproj inverse transform to add azimuth and distance "info" to a grouped and ordered geodataframe. I asked a similar question earlier here, but I didn't realize grouping was a ...
1
vote
2answers
196 views
How can I convert a LineString GeoDataFrame to a Points GeoDataFrame while retaining the vertice order?
I have a LineString GeoDataframe that I am trying to convert into a Points GeoDataframe, but I want to retain the GroupBy and SortBy features inherent in a LineString (i.e., all the vertices that make ...
1
vote
1answer
144 views
Pyproj inverse transform returns NaN with EPSG that is not 4326
I am using pyproj inverse transform to add azimuth and distance "info" to an ordered geodataframe and keep getting unexpected NaN results when I use a local UTM-based EPSG.
It works fine in ...
0
votes
1answer
45 views
How to extract CRS ellipsiod info in correct format for pyproj inverse
I am using pyproj inverse transform to add azimuth and distance "info" to an ordered geodataframe (gdf), but my datasets are in different locations around the world. I need to use a local ...
1
vote
1answer
82 views
Using pyproj inverse transform to get azimuth, row iteration and lambda apply (I'm close to the answer!)
I am using pyproj inverse transform to add azimuth and distance "info" to an ordered geodataframe.
I am trying to iterate over all the rows in the geodataframe to add the "info" as ...
1
vote
0answers
114 views
ArcGIS Pro Python Toolbox - env.workspace being 'forgotten' after using Spatial Analyst tools
EDIT
I've narrowed down the cause of the problem to the spatial analyst toolbox. After using an SA tool, arcpy seems to temporarily 'forget' the env.workspace setting: Subsequent attempts to reference ...
0
votes
0answers
103 views
Conversion of (lat, lon, height) to another CRS with pyproj results in no transformation
I have latitude, longitude, and ellipsoidal_height measurements in the IGS14 CRS. I want to convert/transform/project this data into latitude, longitude, and ellipsoidal_height measurements in the ...
2
votes
1answer
129 views
How can I launch a QWidget after pressing a submenu (QAction) in QGis3.4?
I need your help
I am developing a dialog box (which I will call toolraster) in QGis to interact with raster layers. I want it to display when I click on a menu I insert in the QGis interface.
I ...
3
votes
0answers
85 views
Stand-alone PyQGIS (QGIS 3.13) scripts with OSGeo4W and the Orfeo toolbox (OTB 7.1.0) seem to be mutually exclusive
I am changing my python environment from working with ArcGis and Arcpy to working with QGIS and PyQgis. And I also want to use the machinelearning possibilities from the orfeo toolbox. In doing so I ...
2
votes
1answer
74 views
Check if polygons of a GeoJSON file are included in polygons of another
I have two GeoJSON files. A province.geojson file and a constituencies.geojson file and I would like to know for each district polygon which province it belongs to. That is to say, for each polygon in ...
0
votes
0answers
10 views
Programmatically remove default shortcut of Locator
Using Python, how may I go about changing or removing the default shortcut of the Locator?
I have a list of desired_shortcuts that I leverage as a comparison point against QGIS defaults to remove ...
1
vote
0answers
15 views
Problem in distributing GDAL in stand alone application
I'm desperate with the distributing problem of gis packages each time. It is the third day that I'm desperately trying to make an .exe using Pyinstaller to a small application I developed using GDAL ...
0
votes
0answers
9 views
Linear projection going astray
I have developed a tool that tries to find a path connecting a set of telecommunication network equipment along a given road network. Since the equipment is located at various distance from the road ...
1
vote
0answers
71 views
Load layers for viewing in QGIS 3 from delimited text
I am trying to use part of a script to add points from a delimited text file, however, when I use it the layers are not loaded on the screen and not saved in the path indicated as .shp
import os
...
1
vote
1answer
536 views
Create an ESRI Shapefile from WKT with OGR
I want to create an ESRI Shapefile layer from a CSV file. In my CSV I have several attributes (text, numeric) and geometry in WKT style. I have a problem with the geometry field wich is truncated to a ...
