Packaging PySide6 with Nuitka - qt.network.ssl issues

valvador92

Hi!
I am developing a software with a conda env and PySide6. When running on a terminal, everything works fine but after packaging with Nuitka I am getting errors.
Here is my command:

nuitka --standalone --plugin-enable=pyside6 --plugin-enable=numpy --plugin-enable=anti-bloat --output-dir Packaging_video_test video_test.py

It creates the .exe. But when I want to launch the .exe, I get this error:

qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No TLS backend is available
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No TLS backend is available
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed

After investigating a bit, it seems related to QtNetwork. If I don't import it, the packaging works fine. Unfortunately, I need it.
Is this issue related to OpenSSL?

I am a bit stuck.

Thanks in advance for your help!

SGaist

Hi,

From the looks of it, the OpenSSL librairies have not been deployed along the rest of your dependencies.

valvador92

@SGaist Thanks for your answer. What are actually those dlls/libraries?
libcrypto-1_1-x64.dll and libssl-1_1-x64.dll are packaged in the dist folder. Are other DLLs/libraries needed?

SGaist

Check with something like Dependency Walker to see if you have something missing for them.

valvador92

@SGaist Thanks for the suggestion. I tried Dependency Walker, Dependencies and dumpbin.exe /dependents but it doesn't seem that anything is missing

valvador92

@SGaist If you want to try on your side here is a minimal example:

import sys
from PySide6 import QtCore, QtNetwork, QtWidgets


class CheckConnectivity(QtCore.QObject):
    def __init__(self, *args, **kwargs):
        QtCore.QObject.__init__(self, *args, **kwargs)
        url = QtCore.QUrl("https://www.google.com/")
        req = QtNetwork.QNetworkRequest(url)
        self.net_manager = QtNetwork.QNetworkAccessManager()
        self.res = self.net_manager.get(req)
        self.res.finished.connect(self.processRes)
        self.msg = QtWidgets.QMessageBox()

    @QtCore.Slot()
    def processRes(self):
        if self.res.bytesAvailable():
            self.msg.information(None, "Info", "You are connected to the Internet.")
        self.res.deleteLater()


if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    ic = CheckConnectivity()
    sys.exit(app.exec())

It runs fine from terminal but not after creating package with Nuitka:

nuitka --standalone --plugin-enable=pyside6 --output-dir Packaging_check_connectivity check_connectivity.py


qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No TLS backend is available
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No TLS backend is available
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No TLS backend is available
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: No TLS backend is available
qt.network.ssl: No functional TLS backend was found
qt.network.ssl: QSslSocket::connectToHostEncrypted: TLS initialization failed

Here is my conda env:

name: video_env
channels:
  - anaconda
  - conda-forge
  - defaults
dependencies:
  - ca-certificates=2020.10.14=0
  - jpeg=9b=vc14h4d7706e_1
  - libblas=3.9.0=5_hd5c7e75_netlib
  - libcblas=3.9.0=5_hd5c7e75_netlib
  - liblapack=3.9.0=5_hd5c7e75_netlib
  - libopencv=4.0.1=hbb9e17c_0
  - libpng=1.6.37=h2a8f88b_0
  - libsodium=1.0.18=h62dcd97_0
  - libtiff=4.1.0=h56a325e_1
  - lz4-c=1.9.2=hf4a77e7_3
  - m2w64-gcc-libgfortran=5.3.0=6
  - m2w64-gcc-libs=5.3.0=7
  - m2w64-gcc-libs-core=5.3.0=7
  - m2w64-gmp=6.1.0=2
  - m2w64-libwinpthread-git=5.0.0.4634.697f757=2
  - msys2-conda-epoch=20160418=1
  - ninja=1.10.2=h2d74725_1
  - nomkl=1.0=h5ca1d4c_0
  - numpy=1.21.4=py39h6635163_0
  - openssl=1.1.1l=h8ffe710_0
  - pip=21.3.1=pyhd8ed1ab_0
  - pybind11=2.9.0=py39h2e07f2f_0
  - pybind11-global=2.9.0=py39h2e07f2f_0
  - pyopengl=3.1.5=py_0
  - python=3.9.7=h6244533_1
  - python_abi=3.9=2_cp39
  - pywin32=303=py39hb82d6ee_0
  - setuptools=60.5.0=py39hcbf5309_0
  - sqlite=3.37.0=h8ffe710_0
  - tzdata=2020b=h7b6447c_0
  - vc=14.1=h0510ff6_4
  - vs2015_runtime=14.16.27012=hf0eaf9b_3
  - wheel=0.35.1=py_0
  - xz=5.2.5=h62dcd97_0
  - zlib=1.2.11=vc14h1cdd9ab_1
  - zstd=1.4.4=ha9fde0e_3
  - pip:
    - nuitka==0.6.19.4
    - pyside6==6.2.2.1
    - shiboken6==6.2.2.1

SGaist

Do you have the same issue if you build your environment only with pip ?

valvador92

@SGaist I haven't tested it. But for my app, Anaconda is needed. I can't change it unfortunately.

SGaist

Related GitHub issue: https://github.com/Nuitka/Nuitka/issues/1390

valvador92

@SGaist I posted the question their actually. This is my post.

SGaist

I know, it was to keep the link with the thread as it looks like it's a Nuitka issue.