C:\dynamic_load_mcve>type main.py
from filesIWantToImport import *
print(foo)
print(narf)
print(blorp)

C:\dynamic_load_mcve>type filesIWantToImport\__init__.py
from os.path import dirname, basename, isfile, join
import glob
modules = glob.glob(join(dirname(__file__), "*.py"))
submodule_names = [ basename(f)[:-3] for f in modules if isfile(f) and not f.endswith('__init__.py')]
for module_name in submodule_names:
    exec(f"from .{module_name} import *")

C:\dynamic_load_mcve>type filesIWantToImport\bar.py
foo = 23

C:\dynamic_load_mcve>type filesIWantToImport\spam.py
narf = 42

C:\dynamic_load_mcve>type filesIWantToImport\eggs.py
blorp = "blorp"

C:\dynamic_load_mcve>main.py
23
42
blorp