First time I build an application for Windows, so I used Python+pyqt5 since I had good experience with C++/Qt5 on Linux.
I'm now trying to get an executable for deployment, but the one generated py2exe complained about missing the Qt Windows plugin. I moved to pyqtdeploy as it seemed to be more specifically designed with pyqt in mind, but after setting the paths I just get an "Unable to copy file error".
Anybody got an idea how to get this to work?
The locations I set are as follows:
Interpreter: C:\Python34\python.exe
Include Directory: C:\Python34\include
Python Library: C:\Python34\DLLs\python3.dll
Standard Library Directory: C:\Python34\Lib
Today, I faced the same problem. After some debugging I found out that pyqtdeploy looks for the correct bootstrap-<version>.py script it wants to use, by looking at the version in the filename of the Python library (python3.dll in our case).
The solution is to use <windows-dir>\system32\python34.dll or <python-install-dir>\python34.dll as the Python library. The former will be present when you install Python for all users, the latter will be present when you install Python "just for me" (see this screenshot).
After renaming python3.dll to python34.dll, everything worked again.
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I'm trying to create a pdf file inside a python/django project. I'm using PyLatex, which helps, but it's generate_pdf method breaks when it calls pdflatex. I keep getting this error:
FileNotFoundError: [Errno 2] No such file or directory: 'pdflatex'
I tried everything - os.system() ... subprocess. Any way I try, it can't find pdflatex. I'm running on Windows, but I need to be able to to do this within the web-app anyway.
Thanks for any help!
You just need to install pdflatex (and you will need to install on your server when you release your web-app). Instructions for installing on windows can be found in the top answer here.
Do you have "pdflatex" installed? As per this question, you may have to install "MiKTeX" and point os.system() at C:\Program Files\MiKTeX <MikTeX version>\miktex\bin to make it work.
Hope that helps.
Do you have texlive installed? If yes, then the issue is with the system path variable. If not already added, add it to the system path.
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Updated answer:
I took the time and decided to replicate your issue. I too use windows.
I copied the basic example from Pylatex and tested it on my machine, I was able to replicate the same error as you despite having TexLive installed. To solve it I did the following steps:
Installed MikTex (I believe you have it installed).
Tried running it again but failed with the error missing package latexmk.
Using MikTex package manager, I installed the latexmk package.
Tried running but still failed, error missing perl.exe command.
I had to install perl to my windows, use the following links -- https://learn.perl.org/installing/windows.html
When I tried again, it compiled successfully.
The issue was not having the package latexmk for MikTex and perl.exe of which you should have posted as part of the error logs. Try that and let me know if successful.
I'm currently doing the exercise in "Learn python the hard way".
In this exercise i have to install the lpthw.web frame work.
Having installed pip in windows, i open my terminal and hit
pip install lpthw.web
Everything then ends succesfully.
But when i browse C:\Python27\Lib\site-packages\lpthw.web-1.1-py2.7.egg-info and check the installed-files text i can't see the web.py.
Consequently when i try to import it in a simple script i get ImportError.
I don't have python 3 installed as book suggested for possible cause, so i don't know how to work around it.
Any suggestion?
I checked my path
import sys
sys.path
and saw that every single line was using the panda3d path.
As i was not really using it, unistalling it fixed my problem.
For me it was python version control on raspberry pi
(linux) 2.7 is default and does not work.
follow:
https://learn.sparkfun.com/tutorials/python-programming-tutorial-getting-started-with-the-raspberry-pi/configure-your-pi
have other errors now but the import web loads in python.
cheers!
I'm trying to follow this tutorial and I'm getting the following error:
ImportError: No module named django.core.management
I'm completely new to python. I believe Visual studio is using a version of python I already had installed in c:\Python27, could that be causing a problem?
Someone mentioned in a link I found that they had to copy the 'django' folder to the project folder, but I don't know where that would be. I don't even know what the error means really unless there's a missing package (like dll or assembly in .NET?), but I don't know what paths python would use to try to find a package or even what one would look like.
I see there's a PYTHONPATH environment variable that I don't have declared, should I declare that? Should it point to the C:\Python27 directory?
First, do you have checked your "Python Environment" in your project folder? It may seems like...
Here you may find your django with version. If you dont find it then compile setup.py from django folder again with desire python version. And then right click on "Python Environments" from your project and click on "Add/Remove Python Environments" to select python version.
Ok with a lot of fooling around I found this directory:
%LOCALAPPDATA%\Microsoft\Web Platform Installer\installers\PythonDetectInstalls
In a mangled sub-folder there is a powershell script DetectPythonInistalls.ps1 that has these two lines for checking if python is installed already:
$regKey = "hklm:SOFTWARE\Python\PythonCore\$pythonVersion\InstallPath";
$correctRegKey = "hklm:SOFTWARE\Wow6432Node\Python\PythonCore\$pythonVersion\InstallPath";
Uninstalling all my pythons did not remove these keys. After removing these registry keys with regedit, WPI allowed me to install its own version of python 2.7 and all the other goodies to go with the Windows Azure Python SDK and it worked.
For a schoolproject I need to make use of the aubio library. However, I have a problem compiling it for Windows.
I downloaded the latest source from his git (0.4.0 alpha). Then I compiled it using Cygwin, using the --with-target-platform=win32 to cross-compile it for Windows. It uses waf by the way.
This works without any errors.
Next step is copying the compiled file (libaubio.dll.a) to MinGW library folder. Then I want to compile the Python wrapper for the module, but it shows up the ld.exe cannot find -laubio error. Renaming the libaubio.dll.a to libaubio.a resolves this and compiling succeeds succesfully.
Installing it into the Python folder works perfectly too. But here starts the problem. When trying to import aubio, I get this error: ImportError: DLL load failed: Invalid access to memory location.
I have no clue on how to solve this problem. Can anybody help? Or explain the error to me?
Thanks in advance!
Xander
PS. It compiles perfectly on both OSX and Ubuntu.
Well, this may not be the right solution for you, just a hint. ImportError: DLL load failed: Invalid access to memory location. I encountered the same error when trying to make my own extension of Python programmed in C. Platform: Windows 32bits.
It was a real pain because this error appeared randomly in interactive as well as in non-interactive mode in all Python environments (Spyder, Notebook, plain console...). I compiled my code using MinGW and Python's distutils (command python setup.py install). The compilation gave no warnings or errors and produced pyd file to the correct directory. But when trying to import this module import example pro my Python code it irregularly crashed (usually only one out of five attempts to import the module succeeded).
Strange was that on another computer it worked just fine... Well, finally I found workaround - I downloaded a newer version of MinGW (before I had used the version that comes packed in Qt SDK distribution) and compiled the module again. Then it worked with no more crashes. However I did not find any systematic solution or explanation. So I might have something to do with the compiler (maybe absence of its DLLs? I do not know exactly) that was used to generate the pyd file.
I have downloaded setup exe from http://sourceforge.net/projects/gaphor. I am already having installation of Python2.7, PyGTK (Complete package). So when I start the install, I deselect Python2.5, PyGtk etc (as I already have python2.7). But as soon as I begin installation, I got the error:
PyGtkGUI can't be installed as Python not found on this system. PYPATH = No Registry key found.
NOTE:
I am able to proceed, actually i downloaded source code and build it and is working from there. However i would like to know the solution for the original problem reported.
you must add an environment variable
http://www.itechtalk.com/thread3595.html
and use official site wiki:
https://github.com/amolenaar/gaphor/wiki/Custom-Python-Installation-Location