fix: Update the path to the system macOS Python interpreter (#330)

lib/geolocation.js

@@ -2,6 +2,7 @@ import _ from 'lodash';
 import log from './logger';
 import { exec } from 'teen_process';
 import { fs } from '@appium/support';
+import { SYSTEM_PYTHON_PATH } from './utils';
 
 const LYFT_SET_LOCATION = 'set-simulator-location';
 
@@ -72,7 +73,7 @@ async function setLocationWithIdb (idb, latitude, longitude) {
  */
 async function setLocationWithAppleScript (sim, latitude, longitude, menu = 'Debug') {
   // Make sure system-wide decimal separator is used
-  const decimalSeparator = (await exec('/usr/bin/python', [
+  const decimalSeparator = (await exec(SYSTEM_PYTHON_PATH, [
     '-c',
     'from AppKit import NSNumberFormatter;' +
     'import sys;' +

lib/utils.js

@@ -13,8 +13,9 @@ import Simulator from './simulator-xcode-6';
 const DEFAULT_SIM_SHUTDOWN_TIMEOUT = 30000;
 const SAFARI_STARTUP_TIMEOUT = 25 * 1000;
 const MOBILE_SAFARI_BUNDLE_ID = 'com.apple.mobilesafari';
+const SYSTEM_PYTHON_PATH = '/usr/bin/python3';
 const PROCESS_LAUNCH_OK_PATTERN = (bundleId) => new RegExp(`${bundleId.replace('.', '\\.')}:\\s+\\d+`);
-const APP_ACTIVATION_SCRIPT = (pid) => `#!/usr/bin/python
+const APP_ACTIVATION_SCRIPT = (pid) => `#!${SYSTEM_PYTHON_PATH}
 
 from AppKit import NSApplicationActivateIgnoringOtherApps, NSApplicationActivateAllWindows
 from Cocoa import NSRunningApplication
@@ -322,7 +323,7 @@ async function activateApp (pid) {
   });
   await fs.writeFile(tmpScript, APP_ACTIVATION_SCRIPT(pid), 'utf8');
   try {
-    await exec('/usr/bin/python', [tmpScript]);
+    await exec(SYSTEM_PYTHON_PATH, [tmpScript]);
   } finally {
     await fs.rimraf(tmpScript);
   }
@@ -373,5 +374,6 @@ export {
   activateApp,
   SAFARI_STARTUP_TIMEOUT,
   MOBILE_SAFARI_BUNDLE_ID,
+  SYSTEM_PYTHON_PATH,
   launchApp,
 };