[Python] PyInstaller + tkdnd/tkinterdnd2 "Unable to load tkdnd library" when launching frozen...

In my script I am using tkinterdnd2 library to achieve drag and drop functionality from Windows explorer into my tkinter UI.

from tkinterdnd2 import TkinterDnD, DND_FILES
import tkinter as tk

class TkWindow:
def __init__(self):
self.window = TkinterDnD.Tk()
self.tbox = tk.Listbox(self.window)
self.tbox.pack(fill=tk.BOTH)
self.tbox.drop_target_register(DND_FILES)
self.tbox.dnd_bind('<<Drop>>', self.tk_files_dropped)
self.window.mainloop()

def tk_files_dropped(self, event):
messagebox.showinfo("x", event.data)

TkWindow()


When I launch the script - everything works.

But when I freeze the project to a single EXE with PyInstaller, and run it, I get this error:



I tried this solutions already:

1. 
   I added the pyinstaller-hook as instructed in the tkinterdnd2 repository:
   
   from PyInstaller.utils.hooks import collect_data_files, eval_statement
   datas = collect_data_files('tkinterdnd2')
   
   
2. 
   I add --collect-all tkinterdnd2 when executing build command.
   
   
3. 
   I tried copying tkdnd2.8 to tcl8.6 as mentioned in this answer
   
   
4. 
   I tried getting rid of venv and installing all the packages directly into base python interpreter.
   

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