[Tutor] what does the warning indicate?

[devayani barve]

Hi!!
I'm new to python and just trying to play around,
when I run my program in the interactive shell before executing the program
it shows the following warning :

 Warning: HOME environment variable points to
 H:
 but the path does not exist.
================================ RESTART ================================
>>>

or sometimes it just gets stuck.
What does this mean?
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