How to convert a .ui file to .py file with PyQt5 and python 3.6

Question

Converting a .ui file to a .py file using cmd

C:/Python36/Lib/site-packages/PyQt5/pyuic.cpython-36.pyc -x mainwindow.ui -o mainwindow.py

The error shows like

The system cannot find the path specified.

I checked the path, unfortunately, there is no file named in the PyQt folder

please, someone, check this problem

Answer 1

Pretty late, but it might help someone

Tested on windows 10 pro, python 3.9.10, Pyqt 6.2.3

import os
import sys
import subprocess
import traceback


# create folders for storing ui files and for storing py file in your project
#.project
#    ui_pyfiles
#        __init__.py
#        ui_pyfile1.py
#        ui_pyfile2.py
#    ui_xmlfiles
#        ui_xmlfile1.ui
#        ui_xmlfile2.ui
#    convert_uifile.py
#    main.py

# keep path of ui file and path of py file in a dictionary, 
# use name of ui file as key (or any other name, your choice)
file_paths = {
  'main_window': [os.path.abspath('.\\ui_xmlfiles\\main_window.ui'), os.path.abspath('.\\ui_pyfiles\\ui_main_window.py')],
  'file_display_list_mode': [os.path.abspath('.\\ui_xmlfiles\\file_display_list_mode.ui'), os.path.abspath('.\\ui_pyfiles\\ui_file_display_list_mode.py')],
  'playlistview': [os.path.abspath('.\\ui_xmlfiles\\playlistview.ui'), os.path.abspath('.\\ui_pyfiles\\ui_playlistview.py')],
  'property_item_display': [os.path.abspath('.\\ui_xmlfiles\\property_item_display.ui'), os.path.abspath('.\\ui_pyfiles\\ui_property_item_display.py')],
  'group_property_display': [os.path.abspath('.\\ui_xmlfiles\\group_property_display.ui'), os.path.abspath('.\\ui_pyfiles\\ui_group_property_display.py')],
  'properties_display': [os.path.abspath('.\\ui_xmlfiles\\properties_display.ui'), os.path.abspath('.\\ui_pyfiles\\ui_properties_display.py')],
  # 'window_v2': [os.path.abspath('.\\ui_xmlfiles\\window_v2.ui'), os.path.abspath('.\\ui_pyfiles\\ui_window_v2.py')],
}

# provide full path of folder containing pyuic6.exe
# on windows run 'where pyuic6' on cmd to locate pyuic6.exe then grab the dir
pyuic6_dir = 'C:\\Users\\Hp\\pyvenv\\pyqt6_python3_9_10.venv\\Scripts'
current_working_dir = os.getcwd()

def do_convert(key_: str):
  """@param key_: str -> name of ui file (a key in the file_paths dictionary)"""

  if key_.lower() in ('*', 'all'):
    for key_ in file_paths: do_convert(key_)
  
  uifile_path = file_paths[key_][0]
  pyfile_path = file_paths[key_][1]

  # create the py files folder if it does not exist
  # here, i'm considering the folder as package, create __init__.py file
  dir_ = os.path.split(pyfile_path)[0]
  if not os.path.exists(dir_):
    os.makedirs(dir_); open(f'{dir_}\\__init__.py', 'w').close()

  if os.path.getsize(uifile_path) == 0: return

  os.chdir(pyuic6_dir)

  cmd = f'pyuic6 -x {uifile_path} -o {pyfile_path}'

  try:
    subprocess.call(cmd, shell=True)
  except Exception as err:
    print(f'an error occured: {str(err)}')
    # traceback.print_exc()
  finally:
    os.chdir(current_working_dir)


def update_imports():
  items = os.listdir('./ui_pyfiles')
  t = ", ".join([item[:-3] for item in items if item.endswith(".py") and not item in ("__init__.py",)])
  t = f'from ui_pyfiles import {t}\n' if t else ""
  with open('./ui_pyfiles/__init__.py', 'w') as file:
    file.seek(0); file.truncate()
    file.write(t)


if __name__ == '__main__':
  try:
    do_convert(sys.argv[1])
    print('success')
  except IndexError:
    print('error: must supply name of ui file to convert to pyfile')
  except KeyError:
    print(f'error: the ui file \'{sys.argv[1]}\' not found. available ui files: ({", ".join(file_paths.keys())})')
  finally:
    update_imports()

Save as convert_uifile.py

Usage on cmd: convert_uifile.py main_window