ImportError: cannot import module
The package looks like this:

 - main.py
 - HTTPQuery.py
 - SmartDownload.py

in main.py I run `from SmartDownload import DownloadFile`.

in Smartdownload.py I run `from HTTPQuery import Is_ServerSupportHTTPRange`

in HTTPQuery I run `from SmartDownload import DownloadFile`

It seems that I get stuck in a loop, because this is the error:

    Traceback (most recent call last):
      File "C:\Scripts\mp3grabber\main.py", line 13, in <module>
        import HTTPQuery
      File "C:\Scripts\mp3grabber\HTTPQuery.py", line 6, in <module>
        from SmartDownload import DownloadFile
      File "C:\Scripts\mp3grabber\SmartDownload.py", line 3, in <module>
        from HTTPQuery import Is_ServerSupportHTTPRange
    ImportError: cannot import name Is_ServerSupportHTTPRange

But I must import second file's functions into the third file and vice-versa.

What can I do?
ImportError: cannot import module
===

The package looks like this:

 - main.py
 - HTTPQuery.py
 - SmartDownload.py

in main.py I run `from SmartDownload import DownloadFile`.

in Smartdownload.py I run `from HTTPQuery import Is_ServerSupportHTTPRange`

in HTTPQuery I run `from SmartDownload import DownloadFile`

It seems that I get stuck in a loop, because this is the error:

    Traceback (most recent call last):
      File "C:\Scripts\mp3grabber\main.py", line 13, in <module>
        import HTTPQuery
      File "C:\Scripts\mp3grabber\HTTPQuery.py", line 6, in <module>
        from SmartDownload import DownloadFile
      File "C:\Scripts\mp3grabber\SmartDownload.py", line 3, in <module>
        from HTTPQuery import Is_ServerSupportHTTPRange
    ImportError: cannot import name Is_ServerSupportHTTPRange

But I must import second file's functions into the third file and vice-versa.

What can I do?