[Android自动化] 在 pip-9.0.1 版本情况下安装 uiautomator2 报错的解决办法

1、在命令窗口中使用命令： pip install uiautomator2 时报 pip 版本过低，需要先升级 pip 版本，理论上会按照提示进行升级 pip 操作，但执行升级命令时到最后却还是报错，仍提示 pip 版本过低

解决办法：

直接先在命令窗口中执行命令： python -m pip install --upgrade pip setuptools wheel   待提示成功安装即可

 Installing collected packages: setuptools, wheel
   Found existing installation: setuptools 28.8.0
     Uninstalling setuptools-28.8.0:
       Successfully uninstalled setuptools-28.8.0
 Successfully installed setuptools-40.0.0 wheel-0.31.1

此时再安装 uiautomator2 即可成功（都不需要升级 pip 版本号）

 C:\Users\xx00>pip install uiautomator2
 Collecting uiautomator2
 c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\requests\packages\urllib3\util\ssl_.py:318: SNIMissingWarning: An HTTPS request has been made, but the SNI (Subject Name Indication) extension to TLS is not available on this platform. This may cause the server to present an incorrect TLS certificate, which can cause validation failures. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#snimissingwarning.
   SNIMissingWarning
 c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\requests\packages\urllib3\util\ssl_.py:122: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. You can upgrade to a newer version of Python to solve this. For more information, see https://urllib3.readthedocs.io/en/latest/security.html#insecureplatformwarning.
   InsecurePlatformWarning
 Collecting retry>=0.9.2 (from uiautomator2)
   Using cached https://files.pythonhosted.org/packages/4b/0d/53aea75710af4528a25ed6837d71d117602b01946b307a3912cb3cfcbcba/retry-0.9.2-py2.py3-none-any.whl
 Collecting humanize (from uiautomator2)
 Collecting whichcraft (from uiautomator2)
   Using cached https://files.pythonhosted.org/packages/60/8a/5c52e30e11672f7e3aa61f348ddae443d122bcd96bc8b785ac76dbae944b/whichcraft-0.4.1-py2.py3-none-any.whl
 Collecting fire (from uiautomator2)
 Collecting six (from uiautomator2)
   Using cached https://files.pythonhosted.org/packages/67/4b/141a581104b1f6397bfa78ac9d43d8ad29a7ca43ea90a2d863fe3056e86a/six-1.11.0-py2.py3-none-any.whl
 Collecting progress>=1.3 (from uiautomator2)
 Collecting requests>=2.7.0 (from uiautomator2)
   Using cached https://files.pythonhosted.org/packages/65/47/7e02164a2a3db50ed6d8a6ab1d6d60b69c4c3fdf57a284257925dfc12bda/requests-2.19.1-py2.py3-none-any.whl
 Collecting decorator>=3.4.2 (from retry>=0.9.2->uiautomator2)
   Using cached https://files.pythonhosted.org/packages/bc/bb/a24838832ba35baf52f32ab1a49b906b5f82fb7c76b2f6a7e35e140bac30/decorator-4.3.0-py2.py3-none-any.whl
 Collecting py<2.0.0,>=1.4.26 (from retry>=0.9.2->uiautomator2)
   Using cached https://files.pythonhosted.org/packages/f3/bd/83369ff2dee18f22f27d16b78dd651e8939825af5f8b0b83c38729069962/py-1.5.4-py2.py3-none-any.whl
 Collecting urllib3<1.24,>=1.21.1 (from requests>=2.7.0->uiautomator2)
   Using cached https://files.pythonhosted.org/packages/bd/c9/6fdd990019071a4a32a5e7cb78a1d92c53851ef4f56f62a3486e6a7d8ffb/urllib3-1.23-py2.py3-none-any.whl
 Collecting chardet<3.1.0,>=3.0.2 (from requests>=2.7.0->uiautomator2)
   Using cached https://files.pythonhosted.org/packages/bc/a9/01ffebfb562e4274b6487b4bb1ddec7ca55ec7510b22e4c51f14098443b8/chardet-3.0.4-py2.py3-none-any.whl
 Collecting certifi>=2017.4.17 (from requests>=2.7.0->uiautomator2)
   Using cached https://files.pythonhosted.org/packages/7c/e6/92ad559b7192d846975fc916b65f667c7b8c3a32bea7372340bfe9a15fa5/certifi-2018.4.16-py2.py3-none-any.whl
 Collecting idna<2.8,>=2.5 (from requests>=2.7.0->uiautomator2)
   Using cached https://files.pythonhosted.org/packages/4b/2a/0276479a4b3caeb8a8c1af2f8e4355746a97fab05a372e4a2c6a6b876165/idna-2.7-py2.py3-none-any.whl
 Installing collected packages: decorator, py, retry, humanize, whichcraft, six, fire, progress, urllib3, chardet, certifi, idna, requests, uiautomator2
   Found existing installation: py 1.4.20
     Uninstalling py-1.4.20:
       Successfully uninstalled py-1.4.20
   Found existing installation: urllib3 1.8.2
     Uninstalling urllib3-1.8.2:
       Successfully uninstalled urllib3-1.8.2
   Found existing installation: requests 2.3.0
     Uninstalling requests-2.3.0:
       Successfully uninstalled requests-2.3.0
 Successfully installed certifi-2018.4.16 chardet-3.0.4 decorator-4.3.0 fire-0.1.3 humanize-0.5.1 idna-2.7 progress-1.4 py-1.5.4 requests-2.19.1 retry-0.9.2 six-1.11.0 uiautomator2-0.1.2 urllib3-1.23 whichcraft-0.4.1
 Traceback (most recent call last):
   File "C:\Python27\Scripts\pip-script.py", line 9, in <module>
     load_entry_point('pip==9.0.1', 'console_scripts', 'pip')()
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\__init__.py", line 233, in main
     return command.main(cmd_args)
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\basecommand.py", line 252, in main
     pip_version_check(session)
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\utils\outdated.py", line 102, in pip_version_check
     installed_version = get_installed_version("pip")
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\utils\__init__.py", line 838, in get_installed_version
     working_set = pkg_resources.WorkingSet()
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 644, in __init__
     self.add_entry(entry)
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 700, in add_entry
     for dist in find_distributions(entry, True):
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 1949, in find_eggs_in_zip
     if metadata.has_metadata('PKG-INFO'):
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 1463, in has_metadata
     return self.egg_info and self._has(self._fn(self.egg_info, name))
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 1823, in _has
     return zip_path in self.zipinfo or zip_path in self._index()
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 1703, in zipinfo
     return self._zip_manifests.load(self.loader.archive)
   File "c:\python27\lib\site-packages\pip-9.0.1-py2.7.egg\pip\_vendor\pkg_resources\__init__.py", line 1643, in load
     mtime = os.stat(path).st_mtime
 WindowsError: [Error 2] : 'C:\\Python27\\lib\\site-packages\\urllib3-1.8.2-py2.7.egg'

此时再同时查看 uiautomator 和 uiautomator2的版本号，确认两个安装情况(显示如下即为成功）

 C:\Users\xxoo>pip show uiautomator
 Name: uiautomator
 Version: 0.1.32
 Summary: Python Wrapper for Android UiAutomator test tool
 Home-page: https://github.com/xiaocong/uiautomator
 Author: youwei deng
 Author-email: [e-mail]
 License: MIT
 Location: c:\python27\lib\site-packages\uiautomator-0.1.32-py2.7.egg
 Requires: urllib3
 You are using pip version 9.0.1, however version 18.0 is available.
 You should consider upgrading via the 'python -m pip install --upgrade pip' command.

 C:\Users\xxoo>pip show uiautomator2
 Name: uiautomator2
 Version: 0.1.2
 Summary: Python Wrapper for Android UiAutomator2 test tool
 Home-page: https://github.com/codeskyblue/uiautomator2
 Author: codeskyblue
 Author-email: [e-mail]
 License: MIT
 Location: c:\python27\lib\site-packages
 Requires: retry, humanize, whichcraft, fire, six, progress, requests
 You are using pip version 9.0.1, however version 18.0 is available.
 You should consider upgrading via the 'python -m pip install --upgrade pip' command.