Python python 3 os.rename WinError 32, datei wir von einem anderen Prozess genutzt

from PIL import Image
from PIL.ExifTags import TAGS
import os

path = "./_assets/"
file = open("test.txt", 'w', newline="\r\n")
name_offset = "xxx"
file_type_offset = ".JPG"


source = r'.\_assets'


def get_exif(fn):
    ret = {}
    i = Image.open(fn)
    info = i._getexif()
    for tag, value in info.items():
        decoded = TAGS.get(tag, tag)
        ret[decoded] = value
    i.close()
    return ret


exif_data_list = {}

for img in os.listdir(path):

    path2 = r'C:\Users\lnerlich\PycharmProjects\Test01\imagetesting\_assets' + '\\' + img
    img_cache = {}
    img_cache.update(get_exif(path + img))

    if img_cache.get('UserComment'):
        del img_cache['UserComment']

    if img_cache.get('MakerNote'):
        del img_cache['MakerNote']

    file.write(img)
    file.write("\n")
    for keyX, valueX in img_cache.items():
        file.write(keyX)
        file.write(": ")
        file.write(str(valueX))
        file.write("\n")
    file.write("\n")

    exif_data_list.update(img_cache)

    datetime = img_cache['DateTime']
    datetime_new = datetime.replace(':', '-')
    datetime_new = datetime_new.replace(' ', '_')

    os.rename(path2, path2 + '\\' + datetime_new + file_type_offset)

file.close()

with open(fn, 'rb') as f:
        try:
            i = Image.open(f)
            info = i._getexif()
            for tag, value in info.items():
                decoded = TAGS.get(tag, tag)
                exifdata[decoded] = value
            return exifdata
        except:
            #if file is not a picture
            return False