在Python中安装WebSocket库有两种主要方法:
使用 `websocket-client` 库
通过 `pip` 安装:
pip install websocket-client
示例代码:
import websocket
import threading
def on_message(ws, message):
print(f"Received message: {message}")
def on_error(ws, error):
print(f"Error: {error}")
def on_close(ws):
print("Connection closed")
def on_open(ws):
ws.send("Hello, World!")
if __name__ == "__main__":
websocket.enableTrace(True)
ws = websocket.WebSocketApp("ws://localhost:8080/",
on_message=on_message,
on_error=on_error,
on_close=on_close)
ws.on_open = on_open
t = threading.Thread(target=ws.run_forever)
t.start()
使用 `websockets` 库
通过 `pip` 安装:
pip install websockets
示例代码:
import asyncio
import websockets
async def hello():
uri = "ws://localhost:8765/"
async with websockets.connect(uri) as websocket:
name = await websocket.recv()
print(f"Received: {name}")
greeting = f"Hello {name}!"
await websocket.send(greeting)
asyncio.get_event_loop().run_until_complete(hello())
根据你的需求和Python版本,可以选择合适的库进行安装和使用。`websockets` 库是较新的库,支持Python 3.5及以上版本,并且API设计更为简洁和现代化。如果需要支持Python 2.7,则可以使用 `websocket-client` 库。