安安 我是python 3.6 我原本輸入import bs4 會出現 you are trying to run the python2 under python3 後面我找到一些資料 在cmd 輸入 pip3 install beautifulsoup4
就不會再出現 you are 那邊了 (我在做linebot 我自己開一個專門爬蟲的小專案 是成功的了
但是不知道為何 在line bot就出事了
linebot(code):
from flask import Flask

from linebot import (
LineBotApi, WebhookHandler
)
from linebot.exceptions import (
InvalidSignatureError
)
from linebot.models import (
MessageEvent, TextMessage, TextSendMessage, ImageSendMessage
)
import net

app = Flask(name)

Channel Access Token

line_bot_api = LineBotApi('')

Channel Secret

handler = WebhookHandler('')

監聽所有來自 /callback 的 Post Request

@app.route("/callback", methods=['POST'])
def callback():
# get X-Line-Signature header value
signature = request.headers['X-Line-Signature']

# get request body as text
body = request.get_data(as_text=True)
app.logger.info("Request body: " + body)

# handle webhook body
try:
    handler.handle(body, signature)
except InvalidSignatureError:
    abort(400)

return 'OK'

@handler.add(MessageEvent, message=TextMessage)
def handle_message(event):
msg=event.message.text
msg = msg.encode('utf-8')
if msg == '陳冠霖':
line_bot_api.reply_message(event.reply_token,TextSendMessage(text = '開發我的天才'))

elif msg == '美金匯率':          
    line_bot_api.reply_message(event.reply_token,TextSendMessage(text = '美金現在'+net.getData()+'元'))      
          
else :
     line_bot_api.reply_message(event.reply_token,TextSendMessage(text=event.message.text))
      

    

import os
if name == "main":
port = int(os.environ.get('PORT', 5000))
app.run(host='0.0.0.0', port=port)

專門爬蟲的code:
#! python3
import requests
from bs4 import BeautifulSoup
class net:
def getData():
res = requests.get('http://rate.bot.com.tw/xrt?Lang=zh-TW')
soup = BeautifulSoup(res.text,'html.parser')
tag_name = ' tbody tr td'
art = soup.select(tag_name)
art = art[4]
return art.text