import os
import subprocess 
# Path to folder with RvtExporter.exe converter
path_conv = r'C:\DDC_2023\\'
# Path to folder with RVT projects
path = r'C:\RevitProjects\\'
def convert_and_wait(path_conv, exporter_name, file_path, extension):
    subprocess.Popen([os.path.join(path_conv, exporter_name), file_path], cwd=path_conv)
    output_file = os.path.join(path, f"{os.path.splitext(file)[0]}_{extension}.xlsx")
    while not os.path.exists(output_file):
        time.sleep(0.5)
    
# Conversion process from RVT and IFC
for file in os.listdir(path):
    full_path = os.path.join(path, file)
    if file.endswith('.rvt'):
        convert_and_wait(path_conv, 'RvtExporter.exe', full_path, 'rvt')