Python module to use with ArcPy custom geoprocessing tools that provides an error message including system message, line number, and file of error

custom-tool.py

# this is the file where the logic for your custom tool goes
# import modules
# import errorLogger.py module
import arcpy, sys, errorLogger

# run your tool's code
try:
  pass
  # your code goes here
# If an error occurs running geoprocessing tool(s) capture error and write message
# handle error outside of Python system
except EnvironmentError as e:
    arcpy.AddError('\nAn error occured running this tool. Please provide the GIS Department the following error messages:')
    # call error logger method
    errorLogger.PrintException(e)
# handle exception error
except Exception as e:
    arcpy.AddError('\nAn error occured running this tool. Please provide the GIS Department the following error messages:')
    # call error logger method
    errorLogger.PrintException(e)
# final clean up actions for script
finally:
  pass
  # do whatever else needs to be done

errorLogger.py

# import modules
import sys, linecache, arcpy

# Function to handle errors
def PrintException(error):
    exc_type, exc_obj, tb = sys.exc_info()
    f = tb.tb_frame
    lineno = tb.tb_lineno
    filename = f.f_code.co_filename
    linecache.checkcache(filename)
    line = linecache.getline(filename, lineno, f.f_globals)
    # add error message with the system error message, line number of error, and the file that the error ocured in
    arcpy.AddError('\nerror: {}\nFILE: {}, LINE: {}\n\n\t "{}": {}'.format(error, filename, lineno, line.strip(), exc_obj))
    # exit Python
    sys.exit()
# end PrintException