问：Python 在 Batch 中的脚本结束时停止工作

Question

I'm running a series of python scripts from the Command window via a batch file.

Previously, it's worked without issue. However now, without a change in code, every time it gets to the end of a script I get a "Python.exe has stopped working" error. The scripts have actually completed processing, but I need to close the error window for the batch to proceed.

I've tried adding sys.exit to ends of the scripts but that makes no difference. The first script has no issue but every script after has this issue.

How do I stop this error from happening?

Batch File

C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script1
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script2
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script3
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script4a
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script4b
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script4c
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script4d
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script5
C:\Path\to\Python\ArcGIS64bitversion C:\Path\to\Script6

the python scripts do, all, actually complete. Scripts 2-5 all use multiprocessing, however script 6 does not use multiprocessing and still experiences the error.

General Script Structure

import statements
global variables
get data statements

Def Code:
    try: 
        code
        sys.exit
    except:
        print error in text file

Def multiprocessing:
    pool = multiprocessing.pool(32)
    pool.map(Code, listofData)

if main statement
    try:
        code
        multiprocessing()
        sys.exit
    except:
        print error to text file

Script 2 (the first script to error)

import arcpy, fnmatch, os, shutil, sys, traceback
import multiprocessing
from time import strftime
#===========================================================================================
ras_dir = r'C:\Path\to\Input'
working_dir = r'C:\Path\to\Output'
output_dir = os.path.join(working_dir, 'Results')
if not os.path.isdir(output_dir):
    os.mkdir(output_dir)
#===========================================================================================        
global input_files1
global raslist
global ras
raslist = []
input_files1 = []
#===========================================================================================        
for r, d, f in os.walk(working_dir):
    for inFile in fnmatch.filter(f, '*.shp'):
        input_files1.append(os.path.join(r, inFile))

for r, d, f in os.walk(ras_dir):
    for rasf in fnmatch.filter(f,'*.tif'):
        raslist.append(os.path.join(r, rasf))

ras = raslist[0]        
del rasf,raslist    

def rasextract(file):

    arcpy.CheckOutExtension("Spatial")
    arcpy.env.overwriteOutput = True
    proj = file.split('.')
    proj = proj[0] + '.' + proj[1] + '.prj'
    arcpy.env.outputCoordinateSystem = arcpy.SpatialReference(proj)

    try:

        filename = str(file)
        filename = filename.split('\\')
        filename = filename[-1]
        filename = filename.split('.')
        filename = filename[0]

        tif_dir = output_dir + '\\' + filename
        os.mkdir(tif_dir)
        arcpy.env.workspace = tif_dir
        arcpy.env.scratchWorkspace = tif_dir

        dname = tif_dir + '\\' + filename + '_ras.tif'
        fname = working_dir+ '\\' + filename + '_ras.tif'
        bufname = tif_dir + '\\' + filename + '_rasbuf.shp'

        arcpy.Buffer_analysis(file, bufname, "550 METERS", "FULL", "ROUND", "ALL")

        newras = arcpy.sa.ExtractByMask(ras, bufname)
        newras.save(rasname)

        print "Saved " + filename + " ras"
        sys.exit


    except:
        var = traceback.format_exc()
        x = str(var)
        timecode = strftime("%a, %d %b %Y %H:%M:%S + 0000")
        logfile = open(r'C:\ErrorLogs\Log_Script2_rasEx.txt', "a+")
    ent = "\n"
        logfile.write(timecode + "             " + x + ent)
        logfile.close()

def MCprocess():
    pool = multiprocessing.Pool(32)
    pool.map(rasextract, input_files1)


if __name__ == '__main__':

    try:

        arcpy.CheckOutExtension("Spatial")  
        ras_dir = r'C:\Path\to\Input'
        working_dir = r'C:\Path\to\Output'
        output_dir = os.path.join(working_dir, 'Results')
        if not os.path.isdir(output_dir):
            os.mkdir(output_dir)
        #=============================================================      
        raslist = []
        input_files1 = []
        #=============================================================      
        for r, d, f in os.walk(working_dir):
            for inFile in fnmatch.filter(f, '*.shp'):
                input_files1.append(os.path.join(r, inFile))

        for r, d, f in os.walk(ras_dir):
            for demf in fnmatch.filter(f,'*.tif'):
                demlist.append(os.path.join(r, rasf))

        ras = raslist[0]        
        del rasf,raslist
        MCprocess()
        sys.exit

    except:
        var = traceback.format_exc()
        x = str(var)
        timecode = strftime("%a, %d %b %Y %H:%M:%S + 0000")
        logfile = open(r'C:\ErrorLogs\Log_Script2_rasEx.txt', "a+")
        ent = "\n"
        logfile.write(timecode + "             " + x + ent)
        logfile.close()

NEW error message

this error was encountered after disabling error reporting.

Answer 1

Windows is catching the error.

Try disabling 'Window Error Reporting' in the Registry. After that a traceback/error should be shown. Here you find instructions how to disable 'WER' for Windows 10.

Answer 2

Posting this as it is the only web search I could find matching my error (which was that a script ran flawlessly in IDLE, but threw the "Python has stopped working" error when called from a batch (.bat) file) - Full disclosure, I was using shelve, not using arcpy.

I think the issue is that you are somehow leaving files 'open', and then when the script ends Python is forced to clean up the open files in an 'unplanned' fashion. Inside the IDE, this is caught and handled, but once in a batch file, the issue bubbles up to give the 'stopped working'

contrast:

f = open("example.txt", "r")

with

f = open("example.txt", "r")
f.close()

The first will error out from a bat file, the second will not.