NameError：名称'filesize_bytes'未定义

Question

我似乎无法解决此错误：

from tkinter import *
root = Tk()
root.config(bg="Green")
root.title("Storage Units - Tkinter")
root.geometry("326x192")

def storage_units():
        if filesize_bytes <1025:
                filesize=round(filesize_bytes,1)
                FileSize_print = Label(root,text="File Size: "+filesize+"Bytes")
        elif filesize_bytes <1048576:
                filesize=round((filesize_bytes/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"KB")
        elif filesize_bytes <1073741824:
                filesize=round((filesize_bytes/1024/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"MB")
        elif filesize_bytes <1099511627776:
                filesize=round((filesize_bytes/1024/1024/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"GB")
        elif filesize_bytes <1125899906842624:
                filesize=round((filesize_bytes/1024/1024/1024/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"TB")
        elif filesize_bytes <1152921504606846976:
                filesize=round((filesize_bytes/1024/1024/1024/1024/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"PB")
        elif filesize_bytes <1180591620717411303424:
                filesize=round((filesize_bytes/1024/1024/1024/1024/1024/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"EB")

        elif filesize_bytes <1208925819614629174706176:
                filesize=round((filesize_bytes/1024/1024/1024/1024/1024/1024/1024),1)
                FileSize_print = Label(root,text="File Size: "+filesize+"ZB")
        else:
                Label(root,text="Your input may be much longer,negative, invalid or in different format")

#Entry
Filesize_in_bytes_entry = Entry(root)
Filesize_in_bytes_entry.pack()

def Filesize_in_bytes_entry_get():
        filesize_bytes = Filesize_in_bytes_entry.get()
        filesize_bytes = int(filesize_bytes)
        storage_units()



Submit_Button_filesize_entry = Button(root,text="Submit",command=Filesize_in_bytes_entry_get)
Submit_Button_filesize_entry.pack()



root.mainloop()

[Tkinter回调回溯中的异常（最近一次通话最近）：文件“ C：\ Users \ Muhammad Faizan Raza \ AppData \ Local \ Programs \ Python \ Python38-32 \ lib \ tkinter__init __。py”，行1883，在[[致电

return self.func(*args)   File "w:/Computer-related/Python/noname/storageunits.py", line 43, in Filesize_in_bytes_entry_get
storage_units()   File "w:/Computer-related/Python/noname/storageunits.py", line 8, in storage_units  
if filesize_bytes <1025: NameError: name 'filesize_bytes' is not defined

Answer 1

因为您必须在函数参数中传递它：

def storage_units(filesize_bytes):
    if  filesize_bytes <1025:
    ... 

拨打电话：
... 
filesize_bytes =int(filesize_bytes)      
storage_units(filesize_bytes)