from appium import webdriver
des_cap = {'platformName': 'android'}
driver = webdriver.Remote(command_executor='http://127.0.0.1:4723/wd/hub',
desired_capabilities=des_cap)
在pycharm中安裝appium-python-client，版本不指定，此時是2.11.1
對應依賴selenium4.10.0
執行範例程式碼
測試通過
??? 所以博主你要表達啥
繼續看下去
你根據指定版本安裝appium-python-client為2.6，自動安裝selenium4.10
執行範例程式碼
測試失敗
提示如下
D:\Appium01\venv\Scripts\python.exe D:/Appium01/demo1.py
Traceback (most recent call last):
File "D:\Appium01\demo1.py", line 9, in <module>
driver = webdriver.Remote(command_executor='http://127.0.0.1:4723/wd/hub',
File "D:\Appium01\venv\lib\site-packages\appium\webdriver\webdriver.py", line 230, in __init__
super().__init__(
TypeError: WebDriver.__init__() got an unexpected keyword argument 'desired_capabilities'
通過先看報錯
TypeError: WebDriver.__init__() got an unexpected keyword argument 'desired_capabilities'
主要版本資訊:
報錯行
driver = webdriver.Remote
Remote是個別名
from .webdriver import WebDriver as Remote
看WebDriver原始碼
class WebDriver(
webdriver.Remote,
ActionHelpers,
Activities,
Applications,
Clipboard,
Context,
Common,
DeviceTime,
Display,
ExecuteDriver,
ExecuteMobileCommand,
Gsm,
HardwareActions,
ImagesComparison,
IME,
Keyboard,
Location,
LogEvent,
Network,
Performance,
Power,
RemoteFS,
ScreenRecord,
Session,
Settings,
Sms,
SystemBars,
):
def __init__(
self,
command_executor: str = 'http://127.0.0.1:4444/wd/hub',
desired_capabilities: Optional[Dict] = None,
browser_profile: str = None,
proxy: str = None,
keep_alive: bool = True,
direct_connection: bool = True,
extensions: Optional[List['WebDriver']] = None,
strict_ssl: bool = True,
options: Union[AppiumOptions, List[AppiumOptions]] = None,
):
__init__中傳遞了desired_capabilities沒有問題
繼續分析堆疊
File "D:\Appium01\venv\lib\site-packages\appium\webdriver\webdriver.py", line 230, in __init__
super().__init__(
繼續看WebDriver此處原始碼
super().__init__(
command_executor=AppiumConnection(command_executor, keep_alive=keep_alive),
desired_capabilities=desired_capabilities,
browser_profile=browser_profile,
proxy=proxy,
options=options,
)
這裡也有desired_capabilities，為何報錯了呢
請看WebDriver的繼承webdriver.Remote
class WebDriver(BaseWebDriver):
_web_element_cls = WebElement
_shadowroot_cls = ShadowRoot
def __init__(
self,
command_executor="http://127.0.0.1:4444",
keep_alive=True,
file_detector=None,
options: Union[BaseOptions, List[BaseOptions]] = None,
) -> None:
到這裡你發現了，這個__init__裡面沒有desired_capabilities
注意webdriver.Remote是隸屬於selenium的，你此時的selenium是4.10，升級了，可能導致它remove了一些引數
這是預設組合，要知道selenium也是4.10了，為何沒有報錯呢？
其呼叫關係簡單分析下
在Remote的__init__中，也支援desired_capabilities，但有如下資訊
# TODO: Remove the deprecated arg
desired_capabilities: Optional[Dict] = None,
if desired_capabilities is not None:
warnings.warn(
'desired_capabilities argument is deprecated and will be removed in future versions. '
'Use options instead.',
DeprecationWarning,
)
關鍵的問題是在於，appium-python-client2.11.1中對父類別__init__的呼叫是不攜帶desired_capabilities的
super().__init__(
command_executor=command_executor,
options=dst_options,
)
完整程式碼片段如下
class WebDriver(
webdriver.Remote,
ActionHelpers,
Activities,
Applications,
Clipboard,
Context,
Common,
DeviceTime,
Display,
ExecuteDriver,
ExecuteMobileCommand,
Gsm,
HardwareActions,
ImagesComparison,
IME,
Keyboard,
Location,
LogEvent,
Network,
Performance,
Power,
RemoteFS,
ScreenRecord,
Session,
Settings,
Sms,
SystemBars,
):
def __init__(
self,
command_executor: Union[str, AppiumConnection] = 'http://127.0.0.1:4444/wd/hub',
# TODO: Remove the deprecated arg
desired_capabilities: Optional[Dict] = None,
# TODO: Remove the deprecated arg
browser_profile: Union[str, None] = None,
# TODO: Remove the deprecated arg
proxy: Union[str, None] = None,
keep_alive: bool = True,
direct_connection: bool = True,
extensions: Optional[List['WebDriver']] = None,
strict_ssl: bool = True,
options: Union[AppiumOptions, List[AppiumOptions], None] = None,
):
if strict_ssl is False:
# pylint: disable=E1101
# noinspection PyPackageRequirements
import urllib3
# pylint: disable=E1101
# noinspection PyPackageRequirements
import urllib3.exceptions
# noinspection PyUnresolvedReferences
AppiumConnection.set_certificate_bundle_path(None)
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
if isinstance(command_executor, str):
command_executor = AppiumConnection(command_executor, keep_alive=keep_alive)
if browser_profile is not None:
warnings.warn('browser_profile argument is deprecated and has no effect', DeprecationWarning)
if proxy is not None:
warnings.warn('proxy argument is deprecated and has no effect', DeprecationWarning)
if desired_capabilities is not None:
warnings.warn(
'desired_capabilities argument is deprecated and will be removed in future versions. '
'Use options instead.',
DeprecationWarning,
)
# TODO: Remove the fallback after desired_capabilities removal
dst_options = (
AppiumOptions().load_capabilities(desired_capabilities)
if desired_capabilities is not None and options is None
else options
)
super().__init__(
command_executor=command_executor,
options=dst_options,
)
想必分析到此處，你應該盲猜能知道為何這個也PASS了
是因為selenium的版本中webdriver.Remote中是有desired_capabilities的
class WebDriver(BaseWebDriver):
_web_element_cls = WebElement
_shadowroot_cls = ShadowRoot
def __init__(self, command_executor='http://127.0.0.1:4444',
desired_capabilities=None, browser_profile=None, proxy=None,
keep_alive=True, file_detector=None, options: Union[BaseOptions, List[BaseOptions]] = None):
from appium import webdriver
from appium.options.common import AppiumOptions
option = AppiumOptions()
option.set_capability('platformName','android')
driver = webdriver.Remote(command_executor='http://127.0.0.1:4723/wd/hub',
options=option)