当我不保存代码时，Python 中的 IDLE 编辑器将不会运行我的代码

Question

I have written code in a New file window in IDLE.

When I run the code there is no output. Instead a dialog box appears showing a window accessing Python Folder 37-32.

When i closed the dialog box and the file I tried to create a new simple code below but I when I ran the code I got the same Dialog box.

What is wrong?

sum = 2+3 print(sum) 

I have attached a screenshot showing the code and the dialog box that appears when the Module is run

Answer 1

Before you can execute your code, your first need to save the file. Thats the dialog box that popped up.

Answer 2

You should have seen a popup box like below. Did you? Is is unclear?

Save Before Run or Check
?  Source Must Be Saved
    OK to Save?
  [OK]    [Cancel]

One reason to require saving is that exception tracebacks refer to the file and line of lines that lead to the exception.

If you had saved, sum = 2+3 print(sum) would be a SyntaxError.

You can run single statements in Shell without saving.

The RESTART lines says that the shell re-initialized the environment for executing your code.

You should normally not save your code buried in the installation Scripts directory. Better to make a directory in your user directory, for instance, C:/Users/yourname/py/.

Yes, one should usually open a new question for unrelated questions. But without access to your machine, it is hard to know what happened with 'new'. It may be that IDLE could create a file under .../appdate/.../Scripts/ , but your code cannot. If the open call did not raise and exception, it was likely created somewhere. Until you are more experienced, better to use absolute paths, such as C:/Users/yourname/py/new.txt .