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 pwd - imported by posixpath (delayed, conditional, optional), shutil (delayed, optional), tarfile (optional), pathlib (delayed, optional), subprocess (delayed, conditional, optional) missing module named grp - imported by shutil (delayed, optional), tarfile (optional), pathlib (delayed, optional), subprocess (delayed, conditional, optional) missing module named posix - imported by posixpath (optional), shutil (conditional), importlib._bootstrap_external (conditional), os (conditional, optional) missing module named resource - imported by posix (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 _posixsubprocess - imported by subprocess (conditional) missing module named fcntl - imported by subprocess (optional)