This file lists modules PyInstaller was not able to find. This does not necessarily mean this module is required for running your program. Python and Python 3rd-party packages include a lot of conditional or optional modules. For example the module 'ntpath' only exists on Windows, whereas the module 'posixpath' only exists on Posix systems. Types if import: * top-level: imported at the top-level - look at these first * conditional: imported within an if-statement * delayed: imported within a function * optional: imported within a try-except-statement IMPORTANT: Do NOT post this list to the issue-tracker. Use it as a basis for tracking down the missing module yourself. Thanks! missing module named 'org.python' - imported by copy (optional), xml.sax (delayed, conditional) missing module named 'java.lang' - imported by platform (delayed, optional), xml.sax._exceptions (conditional) missing module named _winapi - imported by encodings (delayed, conditional, optional), subprocess (conditional), multiprocessing.connection (optional), multiprocessing.reduction (conditional), multiprocessing.heap (conditional), multiprocessing.popen_spawn_win32 (top-level) missing module named multiprocessing.BufferTooShort - imported by multiprocessing (top-level), multiprocessing.connection (top-level) missing module named multiprocessing.AuthenticationError - imported by multiprocessing (top-level), multiprocessing.connection (top-level) missing module named multiprocessing.get_context - imported by multiprocessing (top-level), multiprocessing.pool (top-level), multiprocessing.managers (top-level), multiprocessing.sharedctypes (top-level) missing module named multiprocessing.TimeoutError - imported by multiprocessing (top-level), multiprocessing.pool (top-level) missing module named org - imported by pickle (optional) missing module named msvcrt - imported by subprocess (conditional), getpass (optional), multiprocessing.spawn (delayed, conditional), multiprocessing.popen_spawn_win32 (top-level) missing module named multiprocessing.set_start_method - imported by multiprocessing (top-level), multiprocessing.spawn (top-level) missing module named multiprocessing.get_start_method - imported by multiprocessing (top-level), multiprocessing.spawn (top-level) missing module named _frozen_importlib_external - imported by importlib._bootstrap (delayed), importlib (optional), importlib.abc (optional) excluded module named _frozen_importlib - imported by importlib (optional), importlib.abc (optional) missing module named pyimod02_importers - imported by /usr/local/lib/python3.7/site-packages/PyInstaller/hooks/rthooks/pyi_rth_pkgutil.py (delayed) missing module named nt - imported by os (conditional, optional), ntpath (conditional, optional), pathlib (conditional), shutil (conditional) missing module named winreg - imported by mimetypes (optional), urllib.request (delayed, conditional, optional), platform (delayed, optional) missing module named _scproxy - imported by urllib.request (conditional) missing module named vms_lib - imported by platform (delayed, conditional, optional) missing module named java - imported by platform (delayed) missing module named _winreg - imported by platform (delayed, optional)