Expected An Indented Block while loop problem

Developers
1

Hello

On the code below I keep getting the error message “Expected An Indented Block”. The code is supposed to create a list of points coorinates for points next to given ones for each loop. Its working one time, but im stuck on looping defined funcion.

IN[0] is given coordinates list
IN[1] is number of loops for the given list

import clr
clr.AddReference('ProtoGeometry')
from Autodesk.DesignScript.Geometry import *
import sys
sys.path.append("C:\Program Files (x86)\IronPython 2.7\Lib")
import copy
from copy import deepcopy

a=IN[0]
b=IN[1]


def choose_point(a):
	
	x1 = deepcopy(a)
	x2 = deepcopy(a)
	y1 = deepcopy(a)
	y2 = deepcopy(a)
	z = deepcopy(a)

	for sub in x1:
    	sub[0] = sub[0] + 1
   
	for sub in x2:
    	sub[0] = sub[0] -1
   
	for sub in y1:
    	sub[1] = sub[1] - 1
   
	for sub in y2:
    	sub[1] = sub[1] -1
   
	for sub in z:
    	sub[2] = sub[2] +1

	final =[a,x1,x2,y1,y2,z]
	final_flat = sum(final, [])

	[list(i) for i in set(map(tuple, final_flat))]

	new_list = [x for x in final_flat if x not in a]

while b > 0: 
    choose_point(a) 
    b = x-1

OUT = new_list

And here is my dynamo script: trying python.dyn (5.6 KB)

Thanks in advance, its my first python try in dynamo.
Maciek.
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2

Hello,

Can you provide more information on the variable ‘x’ in the line ‘b = x-1’ and where is it defined? Maybe I am missing something here!!

1 Like
3

Thank you for answer.
Probably its wrong, it should be I suppose b = b-1 its should be a loop counting number. When its 0 loop stops.

4

Hello @2shy
you have an error because you have mixed spaces and tabs for indentation (Never mix tabs and spaces)
to see them you can use DynamoStandBox 2.10 or any Python IDE

image
image1398×692 121 KB

2 Likes
5

Thank you for your time, good to know! Now I don’t have this particular error anymore. Loop dosen’t work anyway but I will try debug it somehow.

6

This error usually occurs in Python code and it means that there is a problem with the indentation of the code. In Python, indentation is used to indicate the scope of control structures like loops, functions, and conditional statements.

Ensuring proper indentation is crucial to avoid error messages. Forgetting to indent statements within a compound statement or a user-defined function are common causes of IndentationError: expected an indented block. The error message suggests an issue with indentation, which could be due to a mix of tabs and spaces. To avoid issues, it is recommended to use four spaces for indentation in Python. While tabulation or a different number of spaces may work, they may cause problems. Tabs are not recommended because they can create inconsistent spacing in different editors.