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Questions tagged [nameerror]

Use when NameError from Python is thrown by your code

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Error when running LecoS Plugin in QGIS (Query raster values- Point): NameError: name 'QMessageBox' is not defined

This error message comes up when I try to run the LecoS Plugin in QGIS for querying landcover raster values at coordinate points of Bluetit birds on my map: QGIS version: 3.32.3-Lima QGIS code ...
Maria Chiara Horne's user avatar
1 vote
1 answer
35 views

Issue accessing qgis.core module from separate Python file

I have a few python scripts I would like to call from the QGIS Python console. It was working well until I attempted to separate some of the functions to another file -- the qgis.core modules are not ...
user25976's user avatar
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0 votes
1 answer
137 views

Python script run error QGIS

I have been using the Python console in QGIS to develop a script. However, I keep getting the below error whenever I try to execute it. This is line 43 which has the error
Alaa Torkey's user avatar
2 votes
1 answer
247 views

NameError: name '__file__' is not defined when getting the path of the current script using PyQGIS

I am trying to run a script in the QGIS Processing Script Editor, but I get the following error: If I run the script from the PyQGIS console it works with these changes in the console_editor.py (...
hrd's user avatar
  • 33
4 votes
1 answer
174 views

Deleting specific attributes of layer using PyQGIS

I want to delete specific columns in the attribute table of my layer: except for the "LAYER" Column. This is my code: clip = processing.runAndLoadResults("native:clip", ...
charliey's user avatar
  • 163
0 votes
1 answer
504 views

ArcPy CalculateGeometryAttributes parameters for area calculation - Failed to execute error

I have a large project I am working on and am stumped on one step. There is a large group of layers (over 40), for each of which I need to (1) add an area column to the attribute table and then (2) ...
arc_user's user avatar
0 votes
1 answer
102 views

"NameError: name 'SetNull' is not defined" error in ArcPy script? [closed]

I am trying to set a flood raster to a null value whenever it is less than 0.1 feet, but I am getting a NameError. I think I am following the SetNull documentation correctly, but can't figure out why ...
jcholly's user avatar
  • 166
1 vote
1 answer
53 views

Why is help(activeLayer()) not working?

Why are neither of the commands below returning details on the active layer method? It works when I use the class iface. help(activeLayer) help(activeLayer()) This is the error I get Traceback (...
Chace Carpenter's user avatar
1 vote
1 answer
430 views

Using Field Calculator to put file name into field

I am using ArcGIS ModelBuilder. I want to use Field Calculator to put the file name into a field. I created a field using add field. But I don't know the function to call the file name. What I've ...
user203468's user avatar
3 votes
1 answer
144 views

Getting NameError on GetParameterAsText

I am trying to write a simple script that get input from a variable in ModelBuilder and use it in a Python script to "zoom" on a selected features in layout. Here is the script and the error:...
Oliver's user avatar
  • 37
0 votes
1 answer
209 views

How to add user input shapefile as a parameter into "GDB Creator" Python Script tool

I created a Python Script tool to create a GDB inside of a user defined folder path. I am trying to find a way to add another parameter in my script tool for a user to input a shapefile after they ...
Ryan Mags's user avatar
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0 answers
160 views

Output of first iteration as the input of the next step in a for loop

I use a Python script to find the closest facilities. I have 24 cities to process. For one city, I should create 100 random datasets. To do that, I use Python, and for loops. After I create the random ...
Madusha's user avatar
  • 115
3 votes
0 answers
623 views

Reading files with Japanese filenames with GeoPandas

I'm trying to read all shapefiles in a folder using this script: import glob import geopandas as gpd infolder = r'E:/folder/test_input' shapefiles = glob.iglob(infolder+'/*.shp') gdfs = [gpd....
hbk's user avatar
  • 434
7 votes
2 answers
2k views

NameError: name 'QMessageBox' is not defined

When I'm loading a CSV into QGIS, I get this error code, see below. Does anyone know what this means? This also is an issue when I attempt to run NNJoin Plugin too. An error has occurred while ...
Joan Lee's user avatar
4 votes
1 answer
974 views

Using sym.renderer.fields with ArcPy and ArcGIS Pro gives NameError: attribute 'fields' not supported on instance of UniqueValueRenderer

I have a script that updates the symbology of layers in ArcGIS Pro 2.5.0 with Python 3.6: if lyr.name == "Oiling Zone": sym = lyr.symbology sym.updateRenderer('UniqueValueRenderer') sym....
spaine's user avatar
  • 490
2 votes
1 answer
392 views

PyQGIS script for loading several .xyz files into QGIS gives NameError

I found a script for loading several csv files into QGIS and modified it for .xyz Data. Yesterday on one Computer it worked and today on a different Computer it's not working anymore. Is there ...
DGIS's user avatar
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1 vote
1 answer
190 views

Avoiding Python NameError when rewriting script with user defined functions for ArcGIS Pro

I am rewriting a script for Python 3.6 and ArcGIS Pro compatibility and it seems like user defined functions will be necessary to clean it up. I am fairly new. I separated the code block into two ...
Anthony Stokes's user avatar
2 votes
1 answer
129 views

Extracting Summary Statistics value with cursor and assigning it to a variable

I am writing a script (to be used in ArcGIS 10.7.1) that uses a Zonal Statistics tool to create an average of a raster that is beneath a grid. I then use the Summary Statistics tool to take the ...
ihb's user avatar
  • 493
0 votes
1 answer
51 views

Python code error - NameError [closed]

I am relatively new to writing Python code so this is probably obvious to most of you but I am receiving the following error: NameError: name 'latest_edition' is not defined > # Import system ...
ChristineF's user avatar
0 votes
1 answer
529 views

Exporting attribute tables of rasters using ArcPy

I have this script that worked once before to export the attribute tables of some rasters as CSV files. However when I run this script again, I get an error: Runtime error Traceback (most recent call ...
seak23's user avatar
  • 181
1 vote
1 answer
913 views

NameError: name '**' not defined in ModelBuilder Calculate Value

This question follows up on Crianopa's answer https://gis.stackexchange.com/a/107687/126329 - I am attempting to do just this, but my model fails at the Calculate value stage. Using the expression ...
Anna K's user avatar
  • 65
1 vote
1 answer
68 views

SAGA Raster Calculator processing script give error "name 'Rasterout' is not defined"

I am trying to build a custom script using things I have learned from this post: Number inputs as raster calculator variables in QGIS Modeler This is my script so far: ##Maechtigkeit unterhalb einer ...
The Dude's user avatar
  • 197
2 votes
0 answers
2k views

NameError: name data_all1 is not defined in Python 3.x

I have a standalone script using data opened from a Geopackage with Fiona. When I run this portion of my script: import os import fiona import numpy as np datapath= '/media/sf_SharesShapefiles/' ...
sla514's user avatar
  • 41
0 votes
1 answer
8k views

NameError: name '**' is not defined

After importing PyQt4.QtCore,PyQt4.QtGui and processing and after having correctly defined layers, I executed this script in PyQGIS but it returns this error: Traceback (most recent call last): ...
FedericaZ's user avatar
  • 185
2 votes
1 answer
359 views

Debugging NameError: name 'QgsLinearlyInterpolateDiagramRenderer' is not defined from PyQGIS?

I have gone through an online tutorial on how to do a pie chart map using PYQGIS. The following is my code, identical to what was provided. # -*- coding: utf-8 -*- from PyQt4.QtGui import* from ...
Aaron Brunt's user avatar
4 votes
2 answers
743 views

Layers visibility- code error in Arcpy

I try to turn of all the layers, using this code using ArcGIS 10.3.1: import arcpy from arcpy import env env.workspace = r"G:\desktop\gis" for mxd in arcpy.ListFiles("*.mxd"): mapdoc = arcpy....
newGIS's user avatar
  • 4,062
5 votes
2 answers
3k views

Importing modules in PyQGIS

I am trying to build a a library of scripts to call inside the QGis Python console/Python editior. I do not understand why they work independently, but not when being called from another script. ...
Ben the bear's user avatar
0 votes
1 answer
223 views

NameError from using definition query in ArcPy?

I am having trouble getting my definition query to be defined. What am I missing? The current error is: Runtime error Traceback (most recent call last): File "<string>", line 44, in <...
Damned_Novice's user avatar
2 votes
1 answer
334 views

Setting globals in PyQGIS?

I'm working on this script in PyQGIS to take points from a layer called LEK_ALL and snap them to the closest feature of a line layer called LEID_filtered which fulfills a certain request. In order to ...
ltr's user avatar
  • 143
1 vote
1 answer
62 views

Correct SQL expression for SelectbyAttribute Tool [duplicate]

I'm trying to apply the sql expression described here https://geonet.esri.com/thread/76028, that involves querying out odd values in a field. The specific sql expression is Round(NumberField / 2, 0) &...
saoirse's user avatar
  • 246
2 votes
1 answer
203 views

Cannot Import arcpy.mapping on ArcGIS

I can import arcpy and have been using ArcGIS Desktop, but in the tutorial I am following mxd = mapping.MapDocument("CURRENT") NameError: name 'mapping' is not defined This is frustrating because I ...
SedimentGreen's user avatar
2 votes
1 answer
293 views

Removing annotation layer according to data source using ArcPy gives NameError?

I work with this FGB annotation (ArcView 10.3): and i try to remove it with this code: import arcpy,os from arcpy import env env.workspace = r"G:\PROJECTS\road611\gis\aa" for mxdname in arcpy....
newGIS's user avatar
  • 4,062
0 votes
2 answers
212 views

Arcpy cannot locate rasters inside geodatabase

I've bunch of rasters inside a geodatabase and I'm trying to call them as inputs in a script, but I'm running into a strange problem. The script cannot find/locate these rasters, so I manually added ...
user81784's user avatar
  • 419
1 vote
0 answers
77 views

NameError when attempting to auto increment field with python script [closed]

I am getting the following error when trying to run my code and I am not sure why: NameError: global name 'rec' is not defined Here is my code: field = "id_num" rec=0 def autoIncrement(): ...
mmoore's user avatar
  • 1,011
1 vote
1 answer
55 views

Getting NameError when using Cursors to read vertex coordinates in ArcPy? [closed]

I am new to python and having trouble Looping each feature in the new polygon shapefile, then use geometry cursors to read vertex coordinates of this lake polygon, identify the city that is the ...
M_2210's user avatar
  • 51
3 votes
2 answers
3k views

Global name "fc' not defined?

First, I'm trying to call a function from a module (final_functions) I created in a separate script. However I receive the following error: Traceback (most recent call last): File "C:\Python27\...
Andy Fisher's user avatar
1 vote
2 answers
749 views

ArcGIS tells me 'raster' isn't defined

I am trying to get zonal statistics for a set of geographical units for several years and I would like to get the output in one dbf table, where the rows mark the geographical units and each column is ...
cecefuss's user avatar
  • 147
0 votes
1 answer
203 views

Getting NameError with PythEveryone in ArcGIS virtual campus module?

I'm working on the python for everyone lab in Esri's Virtual campus. I'm running into an issue that I can't seem to solve, I've already done some outside research hence posting here! The issue: 4th ...
CrunchTech78's user avatar
0 votes
2 answers
192 views

CellStatistics is not defined error

Code : >>> import arcpy >>> ras1 = arcpy.Raster(r'D:\IMD\test_converted1961.img') >>> ras2 = arcpy.Raster(r'D:\IMD\test_converted1961_fliped_ud1.img') >>> result = ...
Gurminder Bharani's user avatar
10 votes
1 answer
3k views

Adding PostGIS layer from QGIS Python plugin

I try to develop a plugin to add postgis layers to qgis from a plugin as part of learning python. The code for adding a postgis layer is taken from the cookbook and work fine if I run it from the ...
geogrow's user avatar
  • 1,683
3 votes
1 answer
1k views

Scripting with "self" in PyQGIS?

What is "self" and how can I use it error-free in a Q script? Example: mc = self.iface.mapCanvas() But when I try to run this in the Console I get the following error: NameError: name 'self' is ...
Waterman's user avatar
  • 1,217
1 vote
1 answer
193 views

NumPy Array to Feature Class: NameError from Inner Loop Variables

I have a NumPy Array to FC script that parses a JSON web-service. The outer loop writes to my FC correctly, however my inner loop variables come back as not defined when appending the items. The ...
Geoffrey West's user avatar
3 votes
2 answers
6k views

Error msg "Name is not defined" when trying to populate a field with the shape file name

I am trying to populate a field with corresponding file name. For example, if the file name is Route1.shp then the field value will be Route1 as well. However my code is not working. Can you please ...
Python-Novice's user avatar
1 vote
4 answers
10k views

NameError: variable not defined even though set multiple times

This code original worked when run through the python command window in ArcCatalog. After I added the script to a toolbox I have had all sorts of troubles. The most frustrating error has been: ...
Caitlin's user avatar
  • 21
3 votes
3 answers
2k views

Calculate field using variables as fields gives ERROR 000539?

When I calculate a field like this: field_0="field_name0" arcpy.CalculateField_management("Layer", field_0, '!field_name1! / !field_name2!', "PYTHON_9.3") It works! The field "field_name0" in the ...
multigoodverse's user avatar
1 vote
1 answer
1k views

trouble with code block execution in python script

I am trying to calculate values for a field in a python script, but keep getting an error that I don't understand: ExecuteError: ERROR 000539: Error running expression: Fron000000F1 Traceback (most ...
kflaw's user avatar
  • 1,416
0 votes
1 answer
3k views

NameError: name 'QImage' is not defined [closed]

Traceback (most recent call last): File "<input>", line 1, in <module> File "F:/QGIS/bin/test.py", line 6, in <module> img = QImage(QSize(800,600), QImage....
roony's user avatar
  • 51
-2 votes
1 answer
1k views

Shapely Python NameError when using cascaded_union

I am fairly new to Python and therefore my error-solving skills are not much yet developed. I am using Python within a geoprocessing script which is supposed to use ogr (reading/writing shp) and ...
andehhh's user avatar
  • 457
11 votes
1 answer
9k views

How to copy values from field to another using arcpy?

Can some one please let me know how I can do simple field calculation like Copying From "A" to "B" in ArcPy? I have found lots os example on web which they all used extra expression and they were ...
user1106951's user avatar
  • 1,498
0 votes
1 answer
6k views

NameError: name 'Con' is not defined

I have 365 rasters with the same extent, and I am trying to sum them together by month. I have the script below, which was working until I added the line out1 = Con(IsNull(raster), 0, raster) which is ...
Liza's user avatar
  • 75