[英]How do i fix AttributeError: 'NoneType' object has no attribute 'lower'?
[英]Why do I keep getting a AttributeError: 'NoneType' object has no attribute 'lower'?
我正在研究类似于 Siri 和 Cortana 的弱 Ai,但是我注意到我一直收到“AttributeError: 'NoneType' 对象没有属性 'lower'”,旁边是这个,而不是我的代码接收我的查询,它总是打印'对不起,我没听懂'。有人知道如何解决这个问题吗? 谢谢
错误:
if 'wikipedia' in query.lower():
AttributeError: 'NoneType' object has no attribute 'lower'
代码:
import pyttsx3
import speech_recognition as sr
import datetime
import wikipedia
import webbrowser
import os
import smtplib
import pythoncom
print("Initializing Karren")
MASTER = "Bob"
engine = pyttsx3.init('sapi5')
voices = engine.getProperty('voices')
engine.setProperty('voice', voices[1].id)
def speak(text):
engine.say(text)
engine.runAndWait()
def wishMe():
hour = int(datetime.datetime.now().hour)
if hour>=0 and hour <12:
speak("Good Morning" + MASTER)
elif hour>=12 and hour<18:
speak("Good Afternoon" + MASTER)
else:
speak("Good Evening" + MASTER)
# speak("I am Karren. How may I assist you?") # deliberately on not included for now
def takeCommand():
r = sr.Recognizer()
with sr.Microphone() as source:
print("Listening...")
audio = r.listen(source)
try :
print("Recognizing...")
query = r.recognize_google(audio, Language = 'en-uk')
print(f"User said: {query}\n")
except Exception as e:
print("Sorry i didn't catch that...")
query = None
return query
speak("Initializing Karren...")
wishMe()
query = takeCommand()
if 'wikipedia' in query.lower():
speak("Searching wikipedia")
query = query.replace("wikipedia", "")
results = wikipedia.summary(query, sentences=2)
speak(results)
发生这种情况是因为takeCommand
正在返回None
。 None
没有lower
方法,因此您会收到此错误。
您可以做的一件事是记录有关在takeCommand
中引发的异常的更多信息,该异常导致它进入except
块,或者只是删除try
块以便异常停止程序,然后读取回溯。
def takeCommand():
r = sr.Recognizer()
with sr.Microphone() as source:
print("Listening...")
audio = r.listen(source)
try :
print("Recognizing...")
query = r.recognize_google(audio, Language = 'en-uk')
print(f"User said: {query}\n")
except Exception as e:
print("Sorry i didn't catch that...")
query = "None" # or whatever str
return query
这个我自己试过了。 在 Takecommand() 函数中,query = none,用字符串替换 none。 原因是当您遇到错误时,Nonetype 没有降低属性,query = none 并且由于它不是 str 或其他什么,lower() 无法转换它。 如上所述,这是解决此错误而不会再遇到任何错误的一种方法。 测试响应。
否则删除查询 = 无
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