“No module named numpy” Python Error in ArcGIS Label Expression?

Question

I have developed code to label points that pull formatting from a dictionary. I developed this code and it was working fine two weeks ago, today I try to open my map and I am now met with an error which I can't seem to trace in the code.

Before anyone marks my question as a duplicate, I have previously asked unrelated questions about this code

here: Using Python Dictionary to label subscript formatting ArcMap 10.6 [duplicate]

and here: Labeling using chemical formulas in subscripts that contain a mask in ArcMap 10.6

The error I am currently stuck on is:

"Error 0 on line 0

Traceback (most recent call last): File "< string >", line 1, in < module >

File "c:\programfiles(x86)\arcpy\arcpy_init.py", line 20, in < module >

import numpy

Import Error: No module named numpy

The code I am working with is:

def FindLabel ( [WellShape.GWMW_NAME], [2018ExceedanceFigureData-PEMLF_Mhuber.csv.SPRING_EXC], [2018ExceedanceFigureData-PEMLF_Mhuber.csv.FALL_EXC] ):
    a = [2018ExceedanceFigureData-PEMLF_Mhuber.csv.SPRING_EXC]     
    b = [2018ExceedanceFigureData-PEMLF_Mhuber.csv.FALL_EXC]     
    formats = {
        'SiO2': 'SiO<sub>2</sub>',
        'CO32-': 'CO<sub>3</sub><sup>2-</sup>',
        'HCO3-': 'HCO<sub>3</sub><sup>-</sup>',
        'CaCO3': 'CaCO<sub>3</sub>',
        'NH3': 'NH<sub>3</sub>',
        'NO3-': 'NO<sub>3</sub><sup>-</sup>',
        'NO2-': 'NO<sub>2</sub><sup>-</sup>',
        'NO3-+NO2-': 'NO<sub>3</sub><sup>-</sup>+NO<sub>2</sub><sup>-</sup>',
        'OH-': 'OH<sup>-</sup>',
        'NO2-': 'NO<sub>2</sub><sup>-</sup>',
        'Br-': 'Br<sup>-</sup>',
        'SO42-': 'SO<sub>4</sub><sup>2-</sup>'
    }    
    c = [str(i.strip(',')) for i in a[1:-1].split()]
    d = [str(i.strip(',')) for i in b[1:-1].split()]
    e = ','.join([formats.get(i,i) for i in c])    
    f = ','.join([formats.get(i,i) for i in d])
    if a == "(-)" and b != "(-)":
        return "{}\r\n <FNT scale='70'><CLR red='0' green='122' blue='192'>({})</CLR></FNT>".format( [WellShape.GWMW_NAME] ,f )
    elif a != "(-)" and b == "(-)":
        return "{}\r\n <FNT scale='70'><CLR red='255' green='0' blue='255'>({})</CLR></FNT>".format( [WellShape.GWMW_NAME] ,e )
    elif a != "(-)" and b != "(-)":
        return "{}\r\n <FNT scale='70'><CLR red='255' green='0' blue='255'>({})</CLR>\r\n<CLR red='0' green='122' blue='192'>({})</CLR></FNT>".format( [WellShape.GWMW_NAME] ,e ,f )
    elif a == "(-)" and b == "(-)":
        return [WellShape.GWMW_NAME] 

Do you have any suggestions for finding/fixing this error?

I've already restarted my computer and application thinking the glitch may not be in the code (as it was working fine just a few weeks ago).

I am using ArcMap 10.6 and havent changed recently.

However my python updated on March 4th from 3.7.2 to 2.7.16... maybe this new version has an issue with numpy?

Answer 1

Thanks for everyones input! Turns out Python updated (automatically), and the new version was either corrupt or didn't install right.

I tried reinstalling ArcGIS, and also repairing it with no luck.

After contacting ESRI Tech Support, they recommended step 4 of this article : Problem: Unable to import arcpy I had to manually delete the ArcGIS10.x folders under C:\Python27 before running the installation tool to Repair.