使用 Python 构建虚拟助手
原文:https://www . geeksforgeeks . org/build-a-virtual-assistant-use-python/
虚拟桌面助手是一个很棒的东西。如果你想让你的机器按照你的命令运行，就像贾维斯为托尼做的那样。是的，这是可能的。使用 Python 是可能的。Python 提供了一个很好的主库，所以我们可以用它来制作一个虚拟助手。Windows 有 Sapi5，Linux 有 Espeak，可以帮助我们从机器上获得声音。它是一个弱人工智能
需要的模块
- pyttsx3: pyttsx 是一个跨平台的文本到语音库，与平台无关。使用这个库进行文本到语音转换的主要优点是它可以脱机工作。要安装此模块，请在终端中键入以下命令。
pip install pyttsx3
- 语音识别:它允许我们将音频转换成文本进行进一步处理。要安装此模块，请在终端中键入以下命令。
pip install SpeechRecognition
- 网络浏览器:它提供了一个高级界面，允许向用户显示基于网络的文档。要安装此模块，请在终端中键入以下命令。
pip install webbrowser
- 维基百科:用于从维基百科网站获取各种信息。要安装此模块，请在终端中键入以下命令。
pip install wikipedia
虚拟助手使用的方法
1)说话方法
说话方法将帮助我们从机器中提取声音。下面是 Speak 方法的代码解释
Python 3
def speak(audio):
engine = pyttsx3.init()
# getter method(gets the current value
# of engine property)
voices = engine.getProperty('voices')
# setter method .[0]=male voice and
# [1]=female voice in set Property.
engine.setProperty('voice', voices[0].id)
# Method for the speaking of the the assistant
engine.say(audio)
# Blocks while processing all the currently
# queued commands
engine.runAndWait()
2)采取查询方式
该方法将检查条件。如果条件为真，它将返回输出。如果条件满足，我们可以添加任何数字，如果条件满足，我们将得到期望的输出。
Python 3
def Take_query():
# calling the Hello function for
# making it more interactive
Hello()
# This loop is infinite as it will take
# our queries continuously until and unless
# we do not say bye to exit or terminate
# the program
while(True):
# taking the query and making it into
# lower case so that most of the times
# query matches and we get the perfect
# output
query = takeCommand().lower()
if "open geeksforgeeks" in query:
speak("Opening GeeksforGeeks ")
# in the open method we just to give the link
# of the website and it automatically open
# it in your default browser
webbrowser.open("www.geeksforgeeks.com")
continue
elif "open google" in query:
speak("Opening Google ")
webbrowser.open("www.google.com")
continue
elif "which day it is" in query:
tellDay()
continue
elif "tell me the time" in query:
tellTime()
continue
# this will exit and terminate the program
elif "bye" in query:
speak("Bye. Check Out GFG for more exicting things")
exit()
elif "from wikipedia" in query:
# if any one wants to have a information
# from wikipedia
speak("Checking the wikipedia ")
query = query.replace("wikipedia", "")
# it will give the summary of 4 lines from
# wikipedia we can increase and decrease
# it also.
result = wikipedia.summary(query, sentences=4)
speak("According to wikipedia")
speak(result)
elif "tell me your name" in query:
speak("I am Jarvis. Your deskstop Assistant")
3)采取命令方式
该方法用于从语音识别模块获取命令并识别命令
Python 3
# this method is for taking the commands
# and recognizing the command from the
# speech_Recognition module we will use
# the recongizer method for recognizing
def takeCommand():
r = sr.Recognizer()
# from the speech_Recognition module
# we will use the Microphone module
# for listening the command
with sr.Microphone() as source:
print('Listening')
# seconds of non-speaking audio before
# a phrase is considered complete
r.pause_threshold = 0.7
audio = r.listen(source)
# Now we will be using the try and catch
# method so that if sound is recognized
# it is good else we will have exception
# handling
try:
print("Recognizing")
# for Listening the command in indian
# english we can also use 'hi-In'
# for hindi recognizing
Query = r.recognize_google(audio, language='en-in')
print("the command is printed=", Query)
except Exception as e:
print(e)
print("Say that again sir")
return "None"
return Query
*)信号时间方法
Python 3
# code
def tellTime(self):
# This method will give the time
time = str(datetime.datetime.now())
# the time will be displayed like this "2020-06-05 17:50:14.582630"
# nd then after slicing we can get time
print(time)
hour = time[11:13]
min = time[14:16]
self.Speak(self, "The time is sir" + hour + "Hours and" + min + "Minutes")
"""
This method will take time and slice it "2020-06-05 17:50:14.582630" from 11 to 12 for hour
and 14-15 for min and then speak function will be called and then it will speak the current
time
"""
4) Hello 方法
这只是用来问候用户的问候信息。
Python 3
def Hello():
# This function is for when the assistant
# is called it will say hello and then
# take query
speak("hello sir I am your desktop assistant. /
Tell me how may I help you")
5)主要方法
Main 方法是执行所有文件的方法，因此我们将在这里调用 Take_query 方法，这样它就可以识别并告诉或给我们所需的输出。
Python 3
if __name__ == '__main__':
# main method for executing
# the functions
Take_query()
完整代码:
Python 3
import pyttsx3
import speech_recognition as sr
import webbrowser
import datetime
import wikipedia
# this method is for taking the commands
# and recognizing the command from the
# speech_Recognition module we will use
# the recongizer method for recognizing
def takeCommand():
r = sr.Recognizer()
# from the speech_Recognition module
# we will use the Microphone module
# for listening the command
with sr.Microphone() as source:
print('Listening')
# seconds of non-speaking audio before
# a phrase is considered complete
r.pause_threshold = 0.7
audio = r.listen(source)
# Now we will be using the try and catch
# method so that if sound is recognized
# it is good else we will have exception
# handling
try:
print("Recognizing")
# for Listening the command in indian
# english we can also use 'hi-In'
# for hindi recognizing
Query = r.recognize_google(audio, language='en-in')
print("the command is printed=", Query)
except Exception as e:
print(e)
print("Say that again sir")
return "None"
return Query
def speak(audio):
engine = pyttsx3.init()
# getter method(gets the current value
# of engine property)
voices = engine.getProperty('voices')
# setter method .[0]=male voice and
# [1]=female voice in set Property.
engine.setProperty('voice', voices[0].id)
# Method for the speaking of the the assistant
engine.say(audio)
# Blocks while processing all the currently
# queued commands
engine.runAndWait()
def tellDay():
# This function is for telling the
# day of the week
day = datetime.datetime.today().weekday() + 1
#this line tells us about the number
# that will help us in telling the day
Day_dict = {1: 'Monday', 2: 'Tuesday',
3: 'Wednesday', 4: 'Thursday',
5: 'Friday', 6: 'Saturday',
7: 'Sunday'}
if day in Day_dict.keys():
day_of_the_week = Day_dict[day]
print(day_of_the_week)
speak("The day is " + day_of_the_week)
def tellTime():
# This method will give the time
time = str(datetime.datetime.now())
# the time will be displayed like
# this "2020-06-05 17:50:14.582630"
#nd then after slicing we can get time
print(time)
hour = time[11:13]
min = time[14:16]
speak(self, "The time is sir" + hour + "Hours and" + min + "Minutes")
def Hello():
# This function is for when the assistant
# is called it will say hello and then
# take query
speak("hello sir I am your desktop assistant. /
Tell me how may I help you")
def Take_query():
# calling the Hello function for
# making it more interactive
Hello()
# This loop is infinite as it will take
# our queries continuously until and unless
# we do not say bye to exit or terminate
# the program
while(True):
# taking the query and making it into
# lower case so that most of the times
# query matches and we get the perfect
# output
query = takeCommand().lower()
if "open geeksforgeeks" in query:
speak("Opening GeeksforGeeks ")
# in the open method we just to give the link
# of the website and it automatically open
# it in your default browser
webbrowser.open("www.geeksforgeeks.com")
continue
elif "open google" in query:
speak("Opening Google ")
webbrowser.open("www.google.com")
continue
elif "which day it is" in query:
tellDay()
continue
elif "tell me the time" in query:
tellTime()
continue
# this will exit and terminate the program
elif "bye" in query:
speak("Bye. Check Out GFG for more exicting things")
exit()
elif "from wikipedia" in query:
# if any one wants to have a information
# from wikipedia
speak("Checking the wikipedia ")
query = query.replace("wikipedia", "")
# it will give the summary of 4 lines from
# wikipedia we can increase and decrease
# it also.
result = wikipedia.summary(query, sentences=4)
speak("According to wikipedia")
speak(result)
elif "tell me your name" in query:
speak("I am Jarvis. Your deskstop Assistant")
if __name__ == '__main__':
# main method for executing
# the functions
Take_query()
输出:
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