fixed copy/paste error

exportUnityPackage.py

#!/usr/bin/env python

# Invokes a build of this project's assets as a unitypackage.
# Working directory must be in the top-level of the project, i.e., "Assets" must be directly underneath cwd.
import sys
import os
import subprocess
from distutils.spawn import find_executable

# Determines a Unity editor executable that is available from the PATH.
# If none can be found, returns None.
def determineUnityExecutable():

        possibleExecutables = ["Unity", "unityEditor"]
        
        for executable in possibleExecutables:

                actualExecutable = find_executable(executable)
                if(actualExecutable != None):
                        return actualExecutable
        return None

def main():

        workingDirectory = os.getcwd()
        baseDirectory = os.path.basename(os.path.normpath(workingDirectory))
        executable = determineUnityExecutable()

        if(executable == None):
                print("Unable to find unity executable, make sure either 'Unity' or 'unityEditor' are available within your path.")
                sys.exit(1)

        # Shellout.
        arguments = [
                executable,
                "-batchmode",
                "-nographics",
                "-quit",
                "-projectPath",
                workingDirectory,
                "-exportPackage",
                "Assets",
                baseDirectory + ".unityPackage"
        ]
        
        friendlyArguments = ' '.join(arguments)
        print("Calling Unity: [" + friendlyArguments + "]")

        statusCode = subprocess.call(arguments, shell=False, stdout=sys.stdout, stderr=sys.stderr)
        if(statusCode != 0):
                print("Call to unity failed with status code " + str(statusCode))

        return statusCode

sys.exit(main())