如何解决唯一导入*仅在模块级别允许
我正在制作一个包含多个程序的实用程序,但是我对程序进行了一些更改,以便在用户提示时重新运行该程序,然后由于某种原因,我遇到了错误
import * only allowed at module level
这是我的代码
def main():
import os
import sys
import time
import pywhatkit as whatsapp
from speedtest import Speedtest
from tkinter import *
from tkinter import messageBox
from os import listdir
from PIL import Image
print("*"*30)
print("Utility Build v1: Starting")
print("*"*30)
time.sleep(3)
print("NOTE: Before using this program for repairing corrupted disk,please locate this utility .py file into the corrupted storage. Thanks")
time.sleep(3)
print("*"*30)
print("*"*30)
print("Commands: Choose by inputting allocated number")
print("Utility 1: Speed Test")
print("Utility 2: Whatsapp Message Automation")
time.sleep(2)
print("Please Wait...Loading")
time.sleep(4)
print("Utility 3: disk/Removable Storage Repair(a.k.a Dr Corrupt)")
print("Utility 4: Python .py status monitor")
print("*"*30)
print("*"*30)
print("q = Quit Utility Program")
input_ = input(": ")
if input_ == "q":
exit()
if input_ == "1":
time.sleep(2)
print("*"*30)
print("Speed Test: Starting")
print("*"*30)
st = Speedtest()
Download_ = print("Your connection download speed is:",st.download())
Upload_ = print("Your connection upload speed is:",st.upload())
Download1_ = st.download()
Upload1_ = st.upload()
print("*"*30)
print("Speed Test: Finishing Up!")
print("*"*30)
answer = input("Would you like results? ")
if answer == "yes":
print("NOTE: The first 2 digits frm the left is your internet speed")
time.sleep(2)
top = Tk()
top.geometry("100x100")
messageBox.showinfo("Speed Test: Download",Download1_)
top.mainloop()
reply = input("Would like to leave Utility Build(yes) or go to home page?(no) ")
else:
reply1 = print("Would like to leave Utility Build(yes) or go to home page?(no) ")
if reply1 == "yes":
main()
else:
exit()
if input_ == "2":
whatsapp.sendwhatmsg("+61450776320","Hi,this is a test",0)
if input_ == "3":
for filename in listdir('./'):
if filename.endswith('.png'):
try:
img = Image.open('./'+filename) # open the image file
img.verify() # verify that it is,in fact an image
except (IOError,SyntaxError) as e:
print('Bad file:',filename) # print out the names of corrupt files
解决方法
“模块级别”仅表示部分脚本不在类或函数中。您在那里定义的任何名称都直接进入模块名称空间。
因此错误消息只是说要移动
def main():
import os
import sys
import time
import pywhatkit as whatsapp
from speedtest import Speedtest
from tkinter import *
from tkinter import messagebox
from os import listdir
from PIL import Image
到
import os
import sys
import time
import pywhatkit as whatsapp
from speedtest import Speedtest
from tkinter import *
from tkinter import messagebox
from os import listdir
from PIL import Image
def main():
实际上,解释器只在乎from tkinter import *
行。其他问题则与惯例和可读性有关。
CPython对函数内部的局部名称空间进行了优化,该函数要求解释器预先知道所有局部变量的名称。导入星号可以防止这种情况的发生,因为您不知道要在导入的模块中运行什么名称。全局名称空间没有此限制,因此您可以在那里导入星号。
Python是一种用于成年人同意的语言。仅仅因为某些事情是“不好的做法”或无法维护就不会使它成为语法错误。
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