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log_results_capture_errors_template.py

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# ---------------------------------------------------------------------------

# Name: Template ArcPy Script for Writing Messages to Text File

#

# Author: Patrick McKinney

#

# Created on: 01/06/2017

#

# Updated on: 9/21/2022

#

# Description: This is a template script for running ArcGIS geoprocessing tool(s).

# It is ideally suited for scripts that run as Windows scheduled tasks.

# The script writes success or error messages in a text file.

# You must update the path and name of the text file.

# ---------------------------------------------------------------------------

# Import system modules

import arcpy

import sys

import time

from datetime import date

from os import path

# Run geoprocessing tool.

# If there is an error with the tool, it will break and run the code within the except statement

try:

# Date the script is being run

date_today = date.today()

# Date formatted as month-day-year (1-1-2020)

formatted_date_today = date_today.strftime("%m-%d-%Y")

# Create text file for logging results of script

# Update file path with your parameters

# Each time the script runs, it creates a new text file with the date1 variable as part of the file name

# The example would be GeoprocessingReport_1-1-2017

log_file = path.join(r'C:\GIS\Results', f'Geoprocessing_Report_{formatted_date_today}.txt')

# variable to store messages for log file. Messages written in finally statement at end of script

log_message = ''

# get time stamp for start of processing

start_time = time.perf_counter()

# Put ArcPy geoprocessing code here

# add message for text file

log_message += '\nAdd message about geoprocessing tool process completing\n'

# Get the end time of the geoprocessing tool(s)

finish_time = time.perf_counter()

# Get the total time to run the geoprocessing tool(s)

elapsed_time = finish_time - start_time

# total time in minutes

elapsed_time_minutes = round((elapsed_time / 60), 2)

# add final message to log file

log_message += f"\nSuccessfully ran the geoprocessing tool in {elapsed_time} seconds on {formatted_date_today}\n"

# If an error occurs running geoprocessing tool(s) capture error and write message

except (Exception, EnvironmentError) as e:

tbE = sys.exc_info()[2]

# add the line number the error occured to the log message

log_message += f"\nFailed at Line {tbE.tb_lineno}\n"

# add the error message to the log message

log_message += f"\nError: {str(e)}\n"

finally:

# write message to log file

try:

with open(log_file, 'w') as f:

f.write(str(log_message))

except:

pass