我正在制作一個實用程序，其中內(nèi)置了多個程序，但我對程序進(jìn)行了一些更改，以便在用戶提示時重新運(yùn)行，然后由于某種原因，我面臨錯誤import * only allowed at module level這是我的代碼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()
1 回答
侃侃無極
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“模塊級別”僅意味著腳本中不屬于類或函數(shù)的部分。您在那里定義的任何名稱都會直接進(jìn)入模塊名稱空間。
因此，錯誤消息只是說要移動
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():
事實上，口譯員真正關(guān)心的只是臺詞from tkinter import *。其他的是約定和可讀性的問題。
CPython 對函數(shù)內(nèi)部的局部命名空間進(jìn)行優(yōu)化，要求解釋器預(yù)先知道所有局部變量的名稱。星號導(dǎo)入可以防止這種情況發(fā)生，因為在運(yùn)行導(dǎo)入模塊之前您不知道導(dǎo)入的模塊中將包含什么名稱。全局命名空間沒有此限制，因此您可以在那里進(jìn)行星號導(dǎo)入。
Python 是一種供成年人使用的語言。僅僅因為某些東西是“不好的做法”或不可維護(hù)并不意味著它是語法錯誤。
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