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 _winapi - imported by encodings (delayed, conditional, optional), shutil (conditional), ntpath (optional), subprocess (conditional), mimetypes (optional) missing module named winreg - imported by importlib._bootstrap_external (conditional), mimetypes (optional), urllib.request (delayed, conditional, optional), requests.utils (delayed, conditional, optional), platform (delayed, optional) missing module named nt - imported by shutil (conditional), importlib._bootstrap_external (conditional), ntpath (optional), os (delayed, conditional, optional) 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 vms_lib - imported by platform (delayed, optional) missing module named 'java.lang' - imported by platform (delayed, optional) missing module named java - imported by platform (delayed) missing module named _winreg - imported by platform (delayed, optional) missing module named _wmi - imported by platform (optional) missing module named msvcrt - imported by subprocess (optional), getpass (optional) missing module named _scproxy - imported by urllib.request (conditional) missing module named simplejson - imported by requests.compat (conditional, optional) missing module named dummy_threading - imported by requests.cookies (optional) missing module named typing_extensions - imported by urllib3._collections (conditional) missing module named zstandard - imported by urllib3.response (optional), urllib3.util.request (optional) missing module named brotli - imported by urllib3.response (optional), urllib3.util.request (optional) missing module named brotlicffi - imported by urllib3.response (optional), urllib3.util.request (optional) missing module named socks - imported by urllib3.contrib.socks (optional) missing module named cryptography - imported by urllib3.contrib.pyopenssl (top-level), requests (conditional, optional) missing module named 'OpenSSL.crypto' - imported by urllib3.contrib.pyopenssl (delayed, conditional) missing module named 'cryptography.x509' - imported by urllib3.contrib.pyopenssl (delayed, optional) missing module named OpenSSL - imported by urllib3.contrib.pyopenssl (top-level) missing module named chardet - imported by requests.compat (optional), requests (optional), requests.packages (optional)