Hello. Sorry if this is the wrong place to ask my question.

I am trying to open a memory mapped file using Python. I originally used the 
"mmap" module from Python however I had issues with it because I had to use a 
fixed size for the file even though my goal was to open an existing file of 
which the size would be unknown. I am now using the "mmapfile.mmapfile" 
function. My code looks like [this](https://pastebin.com/QygT2wp6). In the 
[docs](http://timgolden.me.uk/pywin32-docs/mmapfile__mmapfile_meth.html) it 
says I can use a file name of "None" if I'm planning on opening an existing 
file. [This](https://pastebin.com/2FVhpDiB) is the error I get when running my 
code.

I'm a novice Python user and I don't know much at all about the Windows API. 
Thanks in advance for any help!
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