fix type errors for service.py, cdp.py, webelement.py and remote_connection.py (#14448)

* fix type errors for `service.py`, `cdp.py`, `webelement.py` and `remote_connection.py`

* remove raise error

---------

Co-authored-by: Sri Harsha <12621691+harsha509@users.noreply.github.com>

Author: navin772

py/selenium/webdriver/common/bidi/cdp.py

@@ -237,6 +237,8 @@ async def wait_for(self, event_type: typing.Type[T], buffer_size=10) -> typing.A
         an async with block. The block will not exit until the indicated
         event is received.
         """
+        sender: trio.MemorySendChannel
+        receiver: trio.MemoryReceiveChannel
         sender, receiver = trio.open_memory_channel(buffer_size)
         self.channels[event_type].add(sender)
         proxy = CmEventProxy()

py/selenium/webdriver/common/service.py

@@ -25,6 +25,7 @@
 from platform import system
 from subprocess import PIPE
 from time import sleep
+from typing import cast
 from urllib import request
 from urllib.error import URLError
 
@@ -55,11 +56,11 @@ def __init__(
         **kwargs,
     ) -> None:
         if isinstance(log_output, str):
-            self.log_output = open(log_output, "a+", encoding="utf-8")
+            self.log_output = cast(IOBase, open(log_output, "a+", encoding="utf-8"))
         elif log_output == subprocess.STDOUT:
-            self.log_output = None
+            self.log_output = cast(typing.Optional[typing.Union[int, IOBase]], None)
         elif log_output is None or log_output == subprocess.DEVNULL:
-            self.log_output = subprocess.DEVNULL
+            self.log_output = cast(typing.Optional[typing.Union[int, IOBase]], subprocess.DEVNULL)
         else:
             self.log_output = log_output
 
@@ -82,7 +83,7 @@ def command_line_args(self) -> typing.List[str]:
 
     @property
     def path(self) -> str:
-        return self._path
+        return self._path or ""
 
     @path.setter
     def path(self, value: str) -> None:
@@ -95,6 +96,8 @@ def start(self) -> None:
          - WebDriverException : Raised either when it can't start the service
            or when it can't connect to the service
         """
+        if self._path is None:
+            raise WebDriverException("Service path cannot be None.")
         self._start_process(self._path)
 
         count = 0
@@ -201,16 +204,16 @@ def _start_process(self, path: str) -> None:
         try:
             start_info = None
             if system() == "Windows":
-                start_info = subprocess.STARTUPINFO()
-                start_info.dwFlags = subprocess.CREATE_NEW_CONSOLE | subprocess.STARTF_USESHOWWINDOW
-                start_info.wShowWindow = subprocess.SW_HIDE
+                start_info = subprocess.STARTUPINFO()  # type: ignore[attr-defined]
+                start_info.dwFlags = subprocess.CREATE_NEW_CONSOLE | subprocess.STARTF_USESHOWWINDOW  # type: ignore[attr-defined]
+                start_info.wShowWindow = subprocess.SW_HIDE  # type: ignore[attr-defined]
 
             self.process = subprocess.Popen(
                 cmd,
                 env=self.env,
                 close_fds=close_file_descriptors,
-                stdout=self.log_output,
-                stderr=self.log_output,
+                stdout=cast(typing.Optional[typing.Union[int, typing.IO[typing.Any]]], self.log_output),
+                stderr=cast(typing.Optional[typing.Union[int, typing.IO[typing.Any]]], self.log_output),
                 stdin=PIPE,
                 creationflags=self.creation_flags,
                 startupinfo=start_info,
@@ -227,6 +230,8 @@ def _start_process(self, path: str) -> None:
             raise
         except OSError as err:
             if err.errno == errno.EACCES:
+                if self._path is None:
+                    raise WebDriverException("Service path cannot be None.")
                 raise WebDriverException(
                     f"'{os.path.basename(self._path)}' executable may have wrong permissions."
                 ) from err

py/selenium/webdriver/remote/remote_connection.py

@@ -137,9 +137,9 @@ class RemoteConnection:
 
     browser_name = None
     _timeout = (
-        float(os.getenv("GLOBAL_DEFAULT_TIMEOUT"))
-        if "GLOBAL_DEFAULT_TIMEOUT" in os.environ
-        else socket._GLOBAL_DEFAULT_TIMEOUT
+        float(os.getenv("GLOBAL_DEFAULT_TIMEOUT", str(socket.getdefaulttimeout())))
+        if os.getenv("GLOBAL_DEFAULT_TIMEOUT") is not None
+        else socket.getdefaulttimeout()
     )
     _ca_certs = os.getenv("REQUESTS_CA_BUNDLE") if "REQUESTS_CA_BUNDLE" in os.environ else certifi.where()
 

py/selenium/webdriver/remote/webelement.py

@@ -226,7 +226,7 @@ def send_keys(self, *value: str) -> None:
                 remote_files = []
                 for file in local_files:
                     remote_files.append(self._upload(file))
-                value = "\n".join(remote_files)
+                value = tuple("\n".join(remote_files))
 
         self._execute(
             Command.SEND_KEYS_TO_ELEMENT, {"text": "".join(keys_to_typing(value)), "value": keys_to_typing(value)}

py/selenium/webdriver/webkitgtk/service.py

@@ -18,7 +18,7 @@
 
 from selenium.webdriver.common import service
 
-DEFAULT_EXECUTABLE_PATH = "WebKitWebDriver"
+DEFAULT_EXECUTABLE_PATH: str = "WebKitWebDriver"
 
 
 class Service(service.Service):
@@ -40,7 +40,7 @@ def __init__(
         service_args: typing.Optional[typing.List[str]] = None,
         env: typing.Optional[typing.Mapping[str, str]] = None,
         **kwargs,
-    ):
+    ) -> None:
         self.service_args = service_args or []
         log_file = open(log_path, "wb") if log_path else None
         super().__init__(
@@ -49,7 +49,7 @@ def __init__(
             log_file=log_file,
             env=env,
             **kwargs,
-        )  # type: ignore
+        )
 
     def command_line_args(self) -> typing.List[str]:
         return ["-p", f"{self.port}"] + self.service_args