使用环境:appium 1.4 版本，python 2.7.9 在红米真机上运行 android_contacts.py,真机默认输入法是搜狗输入法中文 9 键
测试脚本如下:

#! /usr/bin/python
# -*- coding: utf8 -*- 
import os
import unittest
from appium import webdriver
from time import sleep

# Returns abs path relative to this file and not cwd
PATH = lambda p: os.path.abspath(
    os.path.join(os.path.dirname(__file__), p)
)

class ContactsAndroidTests(unittest.TestCase):
    def setUp(self):
        desired_caps = {}
        desired_caps['platformName'] = 'Android'
        desired_caps['platformVersion'] = '4.2'
        desired_caps['deviceName'] = 'Android Emulator'
        desired_caps['app'] = PATH(
            '../../../sample-code/apps/ContactManager/ContactManager.apk'
        )
        desired_caps['appPackage'] = 'com.example.android.contactmanager'
        desired_caps['appActivity'] = '.ContactManager'
        desired_caps["unicodeKeyboard"] = "True"
        desired_caps["resetKeyboard"] = "True"
        self.driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)

    def tearDown(self):
        self.driver.quit()

    def test_add_contacts(self):
        el = self.driver.find_element_by_accessibility_id("Add Contact")
        el.click()

        textfields = self.driver.find_elements_by_class_name("android.widget.EditText")
        textfields[0].send_keys(u"您")
        textfields[2].send_keys("someone@appium.io")

        self.assertEqual('Appium User', textfields[0].text)
        self.assertEqual('someone@appium.io', textfields[2].text)

        self.driver.find_element_by_accessibility_id("Save").click()

        # for some reason "save" breaks things
        alert = self.driver.switch_to_alert()

        # no way to handle alerts in Android
        self.driver.find_element_by_android_uiautomator('new UiSelector().clickable(true)').click()

        self.driver.press_keycode(3)



if __name__ == '__main__':
    suite = unittest.TestLoader().loadTestsFromTestCase(ContactsAndroidTests)
    unittest.TextTestRunner(verbosity=2).run(suite)

运行时，报错：

C:\Users\Youyu\Downloads\sample-code-master\sample-code\examples\python>python android_contacts.py
  File "android_contacts.py", line 35
SyntaxError: 'utf8' codec can't decode byte 0xc4 in position 0: invalid continuation byte

求指导，如何在 python 中能输入中文