async def connect(
self,
ws_endpoint: str,
timeout: float = None,
slow_mo: float = None,
headers: Dict[str, str] = None,
) -> Browser:
transport = WebSocketTransport(ws_endpoint, timeout, headers)
connection = Connection(
self._connection._dispatcher_fiber,
self._connection._object_factory,
transport,
)
connection._is_sync = self._connection._is_sync
connection._loop = self._connection._loop
connection._loop.create_task(connection.run())
self._connection._child_ws_connections.append(connection)
playwright = await connection.wait_for_object_with_known_name(
"Playwright")
pre_launched_browser = playwright._initializer.get(
"preLaunchedBrowser")
assert pre_launched_browser
browser = cast(Browser, from_channel(pre_launched_browser))
browser._is_remote = True
browser._is_connected_over_websocket = True
transport.once("close", browser._on_close)
return browser
class PlaywrightContextManager:
def __init__(self) -> None:
self._connection: Connection
async def __aenter__(self) -> AsyncPlaywright:
self._connection = Connection(
None,
create_remote_object,
PipeTransport(asyncio.get_event_loop(), compute_driver_executable()),
)
loop = asyncio.get_running_loop()
self._connection._loop = loop
loop.create_task(self._connection.run())
playwright_future = asyncio.create_task(
self._connection.wait_for_object_with_known_name("Playwright")
)
done, pending = await asyncio.wait(
{self._connection._transport.on_error_future, playwright_future},
return_when=asyncio.FIRST_COMPLETED,
)
if not playwright_future.done():
playwright_future.cancel()
playwright = AsyncPlaywright(next(iter(done)).result())
playwright.stop = self.__aexit__ # type: ignore
return playwright
async def start(self) -> AsyncPlaywright:
return await self.__aenter__()
async def __aexit__(self, *args: Any) -> None:
await self._connection.stop_async()
async def __aenter__(self) -> AsyncPlaywright:
self._connection = Connection(None, create_remote_object,
compute_driver_executable())
loop = asyncio.get_running_loop()
self._connection._loop = loop
loop.create_task(self._connection.run())
playwright = AsyncPlaywright(
await
self._connection.wait_for_object_with_known_name("Playwright"))
playwright.stop = self.__aexit__ # type: ignore
return playwright
def __enter__(self) -> SyncPlaywright:
try:
self._loop = asyncio.get_running_loop()
except RuntimeError:
self._loop = asyncio.new_event_loop()
self._own_loop = True
if self._loop.is_running():
raise Error(
"""It looks like you are using Playwright Sync API inside the asyncio loop.
Please use the Async API instead.""")
# In Python 3.7, asyncio.Process.wait() hangs because it does not use ThreadedChildWatcher
# which is used in Python 3.8+. This is unix specific and also takes care about
# cleaning up zombie processes. See https://bugs.python.org/issue35621
if (sys.version_info[0] == 3 and sys.version_info[1] == 7
and sys.platform != "win32" and isinstance(
asyncio.get_child_watcher(), asyncio.SafeChildWatcher)):
from ._py37ThreadedChildWatcher import ThreadedChildWatcher # type: ignore
self._watcher = ThreadedChildWatcher()
asyncio.set_child_watcher(self._watcher) # type: ignore
# Create a new fiber for the protocol dispatcher. It will be pumping events
# until the end of times. We will pass control to that fiber every time we
# block while waiting for a response.
def greenlet_main() -> None:
self._loop.run_until_complete(self._connection.run_as_sync())
dispatcher_fiber = greenlet(greenlet_main)
self._connection = Connection(
dispatcher_fiber,
create_remote_object,
PipeTransport(self._loop, compute_driver_executable()),
self._loop,
)
g_self = greenlet.getcurrent()
def callback_wrapper(playwright_impl: Playwright) -> None:
self._playwright = SyncPlaywright(playwright_impl)
g_self.switch()
# Switch control to the dispatcher, it'll fire an event and pass control to
# the calling greenlet.
self._connection.call_on_object_with_known_name(
"Playwright", callback_wrapper)
dispatcher_fiber.switch()
playwright = self._playwright
playwright.stop = self.__exit__ # type: ignore
return playwright
class PlaywrightContextManager:
def __init__(self) -> None:
self._playwright: SyncPlaywright
def __enter__(self) -> SyncPlaywright:
loop: asyncio.AbstractEventLoop
own_loop = None
try:
loop = asyncio.get_running_loop()
except RuntimeError:
loop = asyncio.new_event_loop()
own_loop = loop
if loop.is_running():
raise Error(
"""It looks like you are using Playwright Sync API inside the asyncio loop.
Please use the Async API instead.""")
def greenlet_main() -> None:
loop.run_until_complete(self._connection.run_as_sync())
if own_loop:
loop.run_until_complete(loop.shutdown_asyncgens())
loop.close()
global dispatcher_fiber
dispatcher_fiber = greenlet(greenlet_main)
self._connection = Connection(
dispatcher_fiber,
create_remote_object,
PipeTransport(loop, compute_driver_executable()),
loop,
)
g_self = greenlet.getcurrent()
def callback_wrapper(playwright_impl: Playwright) -> None:
self._playwright = SyncPlaywright(playwright_impl)
g_self.switch()
self._connection.call_on_object_with_known_name(
"Playwright", callback_wrapper)
dispatcher_fiber.switch()
playwright = self._playwright
playwright.stop = self.__exit__ # type: ignore
return playwright
def start(self) -> SyncPlaywright:
return self.__enter__()
def __exit__(self, *args: Any) -> None:
self._connection.stop_sync()
class PlaywrightContextManager:
def __init__(self) -> None:
self._playwright: SyncPlaywright
def __enter__(self) -> SyncPlaywright:
def greenlet_main() -> None:
loop = None
own_loop = None
try:
loop = asyncio.get_running_loop()
except RuntimeError:
loop = asyncio.new_event_loop()
own_loop = loop
if loop.is_running():
raise Error("Can only run one Playwright at a time.")
loop.run_until_complete(self._connection.run_as_sync())
if own_loop:
loop.run_until_complete(loop.shutdown_asyncgens())
loop.close()
dispatcher_fiber = greenlet(greenlet_main)
self._connection = Connection(dispatcher_fiber, create_remote_object,
compute_driver_executable())
g_self = greenlet.getcurrent()
def callback_wrapper(playwright_impl: Playwright) -> None:
self._playwright = SyncPlaywright(playwright_impl)
g_self.switch()
self._connection.call_on_object_with_known_name(
"Playwright", callback_wrapper)
dispatcher_fiber.switch()
playwright = self._playwright
playwright.stop = self.__exit__ # type: ignore
return playwright
def start(self) -> SyncPlaywright:
return self.__enter__()
def __exit__(self, *args: Any) -> None:
self._connection.stop_sync()
async def __aenter__(self) -> AsyncPlaywright:
loop = asyncio.get_running_loop()
self._connection = Connection(
None,
create_remote_object,
PipeTransport(loop, compute_driver_executable()),
loop,
)
loop.create_task(self._connection.run())
playwright_future = self._connection.playwright_future
done, pending = await asyncio.wait(
{self._connection._transport.on_error_future, playwright_future},
return_when=asyncio.FIRST_COMPLETED,
)
if not playwright_future.done():
playwright_future.cancel()
playwright = AsyncPlaywright(next(iter(done)).result())
playwright.stop = self.__aexit__ # type: ignore
return playwright
class PlaywrightContextManager:
def __init__(self) -> None:
self._connection: Connection
async def __aenter__(self) -> AsyncPlaywright:
self._connection = Connection(None, create_remote_object,
compute_driver_executable())
loop = asyncio.get_running_loop()
self._connection._loop = loop
loop.create_task(self._connection.run())
playwright = AsyncPlaywright(
await
self._connection.wait_for_object_with_known_name("Playwright"))
playwright.stop = self.__aexit__ # type: ignore
return playwright
async def start(self) -> AsyncPlaywright:
return await self.__aenter__()
async def __aexit__(self, *args: Any) -> None:
self._connection.stop_async()
async def connect(
self,
ws_endpoint: str,
timeout: float = None,
slow_mo: float = None,
headers: Dict[str, str] = None,
) -> Browser:
if timeout is None:
timeout = 30000
headers = {
**(headers if headers else {}), "x-playwright-browser": self.name
}
transport = WebSocketTransport(self._connection._loop, ws_endpoint,
headers, slow_mo)
connection = Connection(
self._connection._dispatcher_fiber,
self._connection._object_factory,
transport,
self._connection._loop,
)
connection.mark_as_remote()
connection._is_sync = self._connection._is_sync
connection._loop.create_task(connection.run())
playwright_future = connection.playwright_future
timeout_future = throw_on_timeout(timeout,
Error("Connection timed out"))
done, pending = await asyncio.wait(
{transport.on_error_future, playwright_future, timeout_future},
return_when=asyncio.FIRST_COMPLETED,
)
if not playwright_future.done():
playwright_future.cancel()
if not timeout_future.done():
timeout_future.cancel()
playwright: "Playwright" = next(iter(done)).result()
playwright._set_selectors(self._playwright.selectors)
self._connection._child_ws_connections.append(connection)
pre_launched_browser = playwright._initializer.get(
"preLaunchedBrowser")
assert pre_launched_browser
browser = cast(Browser, from_channel(pre_launched_browser))
browser._should_close_connection_on_close = True
browser._local_utils = self._playwright._utils
def handle_transport_close() -> None:
for context in browser.contexts:
for page in context.pages:
page._on_close()
context._on_close()
browser._on_close()
connection.cleanup()
transport.once("close", handle_transport_close)
return browser
async def __aenter__(self) -> AsyncPlaywright:
self._connection = Connection(
None, create_remote_object, PipeTransport(compute_driver_executable())
)
loop = asyncio.get_running_loop()
self._connection._loop = loop
obj = asyncio.create_task(
self._connection.wait_for_object_with_known_name("Playwright")
)
await self._connection._transport.start()
loop.create_task(self._connection.run())
done, pending = await asyncio.wait(
{
obj,
self._connection._transport.on_error_future, # type: ignore
},
return_when=asyncio.FIRST_COMPLETED,
)
if not obj.done():
obj.cancel()
obj = next(iter(done)).result()
playwright = AsyncPlaywright(obj) # type: ignore
playwright.stop = self.__aexit__ # type: ignore
return playwright
async def connect(
self,
ws_endpoint: str,
timeout: float = None,
slow_mo: float = None,
headers: Dict[str, str] = None,
) -> Browser:
if timeout is None:
timeout = 30000
transport = WebSocketTransport(self._connection._loop, ws_endpoint,
headers, slow_mo)
connection = Connection(
self._connection._dispatcher_fiber,
self._connection._object_factory,
transport,
)
connection._is_sync = self._connection._is_sync
connection._loop = self._connection._loop
connection._loop.create_task(connection.run())
future = connection._loop.create_task(
connection.wait_for_object_with_known_name("Playwright"))
timeout_future = throw_on_timeout(timeout,
Error("Connection timed out"))
done, pending = await asyncio.wait(
{transport.on_error_future, future, timeout_future},
return_when=asyncio.FIRST_COMPLETED,
)
if not future.done():
future.cancel()
if not timeout_future.done():
timeout_future.cancel()
playwright = next(iter(done)).result()
self._connection._child_ws_connections.append(connection)
pre_launched_browser = playwright._initializer.get(
"preLaunchedBrowser")
assert pre_launched_browser
browser = cast(Browser, from_channel(pre_launched_browser))
browser._is_remote = True
browser._is_connected_over_websocket = True
def handle_transport_close() -> None:
for context in browser.contexts:
for page in context.pages:
page._on_close()
context._on_close()
browser._on_close()
transport.once("close", handle_transport_close)
return browser
async def connect(
self,
ws_endpoint: str,
timeout: float = None,
slow_mo: float = None,
headers: Dict[str, str] = None,
) -> Browser:
transport = WebSocketTransport(ws_endpoint, timeout, headers)
connection = Connection(
self._connection._dispatcher_fiber,
self._connection._object_factory,
transport,
)
await connection._transport.start()
connection._is_sync = self._connection._is_sync
connection._loop = self._connection._loop
connection._loop.create_task(connection.run())
obj = asyncio.create_task(
connection.wait_for_object_with_known_name("Playwright"))
done, pending = await asyncio.wait(
{
obj,
connection._transport.on_error_future, # type: ignore
},
return_when=asyncio.FIRST_COMPLETED,
)
if not obj.done():
obj.cancel()
playwright = next(iter(done)).result()
self._connection._child_ws_connections.append(connection)
pre_launched_browser = playwright._initializer.get(
"preLaunchedBrowser")
assert pre_launched_browser
browser = cast(Browser, from_channel(pre_launched_browser))
browser._is_remote = True
browser._is_connected_over_websocket = True
transport.once("close", browser._on_close)
return browser
class PlaywrightContextManager:
def __init__(self) -> None:
self._playwright: SyncPlaywright
self._loop: asyncio.AbstractEventLoop
self._own_loop = False
self._watcher: Optional[asyncio.AbstractChildWatcher] = None
def __enter__(self) -> SyncPlaywright:
try:
self._loop = asyncio.get_running_loop()
except RuntimeError:
self._loop = asyncio.new_event_loop()
self._own_loop = True
if self._loop.is_running():
raise Error(
"""It looks like you are using Playwright Sync API inside the asyncio loop.
Please use the Async API instead."""
)
# In Python 3.7, asyncio.Process.wait() hangs because it does not use ThreadedChildWatcher
# which is used in Python 3.8+. This is unix specific and also takes care about
# cleaning up zombie processes. See https://bugs.python.org/issue35621
if (
sys.version_info[0] == 3
and sys.version_info[1] == 7
and sys.platform != "win32"
and isinstance(asyncio.get_child_watcher(), asyncio.SafeChildWatcher)
):
from ._py37ThreadedChildWatcher import ThreadedChildWatcher # type: ignore
self._watcher = ThreadedChildWatcher()
asyncio.set_child_watcher(self._watcher) # type: ignore
def greenlet_main() -> None:
self._loop.run_until_complete(self._connection.run_as_sync())
dispatcher_fiber = greenlet(greenlet_main)
self._connection = Connection(
dispatcher_fiber,
create_remote_object,
PipeTransport(self._loop, compute_driver_executable()),
self._loop,
)
g_self = greenlet.getcurrent()
def callback_wrapper(playwright_impl: Playwright) -> None:
self._playwright = SyncPlaywright(playwright_impl)
g_self.switch()
self._connection.call_on_object_with_known_name("Playwright", callback_wrapper)
dispatcher_fiber.switch()
playwright = self._playwright
playwright.stop = self.__exit__ # type: ignore
return playwright
def start(self) -> SyncPlaywright:
return self.__enter__()
def __exit__(self, *args: Any) -> None:
self._connection.stop_sync()
if self._watcher:
self._watcher.close()
if self._own_loop:
self._loop.run_until_complete(self._loop.shutdown_asyncgens())
self._loop.close()