问题
I have a tkinter script, which runs just fine in IDLE. However, when I double click the .py-file from Windows Explorer, the console window flashes half a second and then it exits.
I was able to screenprint the console window. It says:
...etc.etc...
NameError: global name 'simpledialog' is not defined
simpledialog
is a module in tkinter
which I use in my script. As I do from tkinter import *
, there is no need to explicitly write tkinter.simpledialog
.
It works in IDLE, why not as .py?
回答1:
IDLE uses Tkinter as its graphical environment. It is possible that your code is relying on a side effect of an import by IDLE itself. This is especially true if you use IDLE without a subprocess.
The simpledialog
module does not import when using from tkinter import *
.
Try adding this to your code:
import tkinter.simpledialog as simpledialog
回答2:
Have you updated your PATH environment variable so that your Python executable is found? You can find more information on how to do here - Using Python on Windows
But you basically need to make sure that the folder containing python.exe (e.g. C:\Python32) is displayed when you type the following command from a prompt:
echo %PATH%
回答3:
I had exactly the same problem with one of my scripts utilizing Tkinter. Adding call to mainloop() fixed the issue. See this tutorial for an example: [http://sebsauvage.net/python/gui/#import1
In my case, in the init function I have
def __init__(self,Width=400, Height=400):
# Create GUI window ------------------------------
win = Tk()
...
in the end of init I added:
win.mainloop()
Now it works by just running the file. Hope this helps
回答4:
Similar trouble for me just now, in my first week with python. But I dimly remembered a similar problem with a simple early test script and thought the trouble then was # comments. So I tried that with my Tkinter infused .py script. It ran fine in IDLE as you say, then only flashed when clicked in windows. But there were a couple # commented lines at the top of file.
I took them all out and it now runs no sweat directly in windows. Have a look .. for #.
Sorry, can't seem to delete this post. Now the files work #comments included. Don't know what's up with that. ..
回答5:
I found that changing the executable py file to a file.pyw
fixed the problem. This tells python to execute it using the pythonw.exe which runs the script without the terminal/console in the background.
Not sure why this works, perhaps some screwed up environment variables from a previous python installation.
来源:https://stackoverflow.com/questions/8319022/script-works-in-idle-but-py-file-doesnt-work