Python Plugin from .bat

[Eonwe]

Code:

cd C:\Users\wa2378\AppData\Local\Programs\GIMP 2\bin

set str=%~dp0
set str1=%str:\=\\%

start gimp-2.10.exe -idf --batch-interpreter python-fu-eval -b "import sys;sys.path.append('%str1%');import bilder_check_batch;bilder_check_batch.run('%str1%')" -b "pdb.gimp_quit(1)"

this is what did the job for me. 
path.append to find the module, double slashes in the directory name and the strings called with single quotes.

Thanks for your help!