Bug in Org-babel support in emacs

Hello,

This is related to #259.

I installed live-py-mode from melpa and I cannot work in org-babel
Step to reproduce:

1. Open org file
2. Start a python src

```
#+begin_src python
#+end_src
```
3. inside the src execute edit-src-special C-c C-'
3. activate py-live-mode
The mode will not be activated resulting in a message

```
Current buffer has no associated file
```

It is worth noting I am using doom emacs. I think the answer is to determine when the package should be sequentially to get this value.

# My environment
Describe the versions of everything you were using:
* EMACS
* Operating system Ubuntu 20.04
* Python 3.8.5

Thank You

Reproduce the reported flow in an Org file: open a Python source block, run edit-src-special (C-c C-'), and activate py-live-mode. Start by tracing the org-babel and py-live-mode handling of the temporary buffer and the “Current buffer has no associated file” message. Done means py-live-mode activates in the source-edit buffer without that error; compare with related issue #259.

Written by the indexing model from the issue text.