DLL load failed while importing _greenlet

[kurte32]

I have used auto-py-to-exe several time in the past with great results, however been having this issue for the last couple of days and I have not been able to fix it/found a fix I have tried the 3 methods of installation (PyPI, Install GitHub, and Running Locally) both in a VirtualEnv and Global, however I keep getting the same error.

I have also changed my Python version, started with 3.11 and went all the way to 3.8.10, updated my OS, but ran out of luck

py -m auto_py_to_exe
Traceback (most recent call last):
  File "C:\Program Files\Python38\lib\runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "C:\Program Files\Python38\lib\runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "C:\Users\kurt\Documents\FacturaParque\auto-py-to-exe\auto_py_to_exe\__main__.py", line 10, in <module>
    from . import ui
  File "C:\Users\kurt\Documents\FacturaParque\auto-py-to-exe\auto_py_to_exe\ui.py", line 5, in <module>
    import eel
  File "<frozen zipimport>", line 259, in load_module
  File "C:\Program Files\Python38\lib\site-packages\eel-0.14.0-py3.8.egg\eel\__init__.py", line 5, in <module>
  File "C:\Program Files\Python38\lib\site-packages\gevent\__init__.py", line 86, in <module>
    from gevent._hub_local import get_hub
  File "C:\Program Files\Python38\lib\site-packages\gevent\_hub_local.py", line 101, in <module>
    import_c_accel(globals(), 'gevent.__hub_local')
  File "C:\Program Files\Python38\lib\site-packages\gevent\_util.py", line 148, in import_c_accel
    mod = importlib.import_module(cname)
  File "C:\Program Files\Python38\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "src\\gevent\\_hub_local.py", line 1, in init gevent._gevent_c_hub_local
  File "C:\Program Files\Python38\lib\site-packages\greenlet\__init__.py", line 29, in <module>
    from ._greenlet import _C_API # pylint:disable=no-name-in-module
ImportError: DLL load failed while importing _greenlet: The specified module could not be found.

[brentvollebregt]

This definitely looks less like bug and more like an environment issue.

If you open up a python shell in one of these virtual environments and execute import eel - do you get the same error?

[richylyq]

I am also facing the similar issue of DLL not found for another library. If I open the python shell in a virtual environment and execute the import statement, it works perfectly fine, only after building the .exe and the error shows up

Traceback (most recent call last):
  File "PDFNetPython.py", line 14, in swig_import_helper
  File "importlib\__init__.py", line 127, in import_module
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 657, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 556, in module_from_spec
  File "<frozen importlib._bootstrap_external>", line 1101, in create_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
ImportError: DLL load failed while importing _PDFNetPython: The specified module could not be found.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "gui.py", line 17, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module
  File "dpf_main.py", line 1, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module
  File "PDFNetPython3\__init__.py", line 18, in <module>
  File "PyInstaller\loader\pyimod03_importers.py", line 495, in exec_module
  File "PDFNetPython.py", line 17, in <module>
  File "PDFNetPython.py", line 16, in swig_import_helper
  File "importlib\__init__.py", line 127, in import_module
ImportError: DLL load failed while importing _PDFNetPython: The specified module could not be found.

[brentvollebregt]

@richylyq your issue is in the output executable whereas the problem in this issue is regarding running auto-py-to-exe (missing dll in a dependency).

If you want to report this, you could create a new issue and fill out the template.

[knsonier]

@kurte32, I had this same exception happen to me on both a Windows 10 and Windows 11 VM. Are you sure you have the Visual C++ Redistributable Packages installed? This fixed the problem for me.

I downloaded version 14 from here: https://www.microsoft.com/en-ca/download/details.aspx?id=48145

[github-actions[bot]]

This issue is stale because it has been open for 60 days with no activity. Remove stale label or comment on this issue or it will be closed in 5 days.

[kurte32]

@kurte32, I had this same exception happen to me on both a Windows 10 and Windows 11 VM. Are you sure you have the Visual C++ Redistributable Packages installed? This fixed the problem for me.

I downloaded version 14 from here: https://www.microsoft.com/en-ca/download/details.aspx?id=48145

Hi, just came back to say thanks, this worked :)

[QuinnCiccoretti]

@kurte32, I had this same exception happen to me on both a Windows 10 and Windows 11 VM. Are you sure you have the Visual C++ Redistributable Packages installed? This fixed the problem for me.

I downloaded version 14 from here: https://www.microsoft.com/en-ca/download/details.aspx?id=48145

You are the GOAT