A program I am trying to install requires the installation of PyQt5 5.15.0 , which gives me this error. The odd thing is that the installation works fine for the latest version of PyQt5 (5.15.2), but this program requires 5.15.0 specifically.
Command Output:
Collecting PyQt5==5.15.0
Using cached PyQt5-5.15.0.tar.gz (3.3 MB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing wheel metadata ... error
ERROR: Command errored out with exit status 1:
command: 'c:\users\mshal\appdata\local\programs\python\python39\python.exe' 'C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\mshal\AppData\Local\Temp\tmp41s11ev6'
cwd: C:\Users\mshal\AppData\Local\Temp\pip-install-sfw90hvc\pyqt5_e2cc46859b554da7b84798abae5378ba
Complete output (31 lines):
Traceback (most recent call last):
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 126, in prepare_metadata_for_build_wheel
hook = backend.prepare_metadata_for_build_wheel
AttributeError: module 'sipbuild.api' has no attribute 'prepare_metadata_for_build_wheel'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 280, in <module>
main()
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 263, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 130, in prepare_metadata_for_build_wheel
return _get_wheel_metadata_from_wheel(backend, metadata_directory,
File "C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py", line 159, in _get_wheel_metadata_from_wheel
whl_basename = backend.build_wheel(metadata_directory, config_settings)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\api.py", line 51, in build_wheel
project = AbstractProject.bootstrap('pep517')
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\abstract_project.py", line 83, in bootstrap
project.setup(pyproject, tool, tool_description)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\project.py", line 479, in setup
self.apply_user_defaults(tool)
File "project.py", line 62, in apply_user_defaults
super().apply_user_defaults(tool)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\pyqtbuild\project.py", line 79, in apply_user_defaults
super().apply_user_defaults(tool)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\sipbuild\project.py", line 225, in apply_user_defaults
self.builder.apply_user_defaults(tool)
File "C:\Users\mshal\AppData\Local\Temp\pip-build-env-nnx_yu09\overlay\Lib\site-packages\pyqtbuild\builder.py", line 66, in apply_user_defaults
raise PyProjectOptionException('qmake',
sipbuild.pyproject.PyProjectOptionException
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\mshal\appdata\local\programs\python\python39\python.exe' 'C:\Users\mshal\AppData\Roaming\Python\Python39\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\mshal\AppData\Local\Temp\tmp41s11ev6' Check the logs for full command output.
I am on the latest version of pip. Any ideas on the root cause of this issue?
What helped me is upgrading pip from 20.2.3 to the latest one (in my case 21.1.1)
For Mac/Homebrew users.
The answer by #the-x is leading in the right direction. On a Mac with QT5 installed via Homebrew the qmake binary just needs to be added to the path. This can be achieved through
export PATH="/opt/homebrew/opt/qt5/bin:$PATH"
(of course depending on where the homebrew files are installed)
Running on arm with python3.6 (ubuntu18 on nvidia Xavier):
sudo apt install qt5-default
For MacOS users.
I am on Apple M1 silicon using Python 3.9.8. What worked for me was #Apaul's comment in the original question section. Install pyqt5-sip prior to pyqt5.
I also have an Intel Mac and on that machine, I do not need to do this.
Checking the binaries that PyQt5 provides in pypi for version 5.15.0 I see that it does not provide the binaries for python3.9 in windows, so pip is trying to compile using the source code which is complicated and can generate several dependency problems (for example you must have Qt 5.15 installed, etc). So my recommendation is to install a more updated version of PyQt5, for example 5.15.2 since if it provides the binaries for python3.9 on windows, in addition to being a wrapper of an LTS version of Qt then it will have solved several bugs.
python -m pip install PyQt5==5.15.2
Another solution is to use python3.8 instead of python3.9 so that you can install pyqt5 5.15.0 from pypi without problems.
Upgrading your pip enables you to install PyQt5. Personally, I had the same issue while installing PyQt6 and I upgraded my pip, and everything installed perfectly. I think both python and pip versions play an important role in installing PyQt so make sure you have later versions.
This is the command I used in Linux:
pip install --upgrade pip
Combining several answers on this question: On an Apple M1 Pro Macbook with macOS Ventura 13.0.1, with Homebrew 3.6.17 and python 3.11.0 the following commands fixed it for me (no sudo):
brew install qt5
export PATH="/opt/homebrew/opt/qt5/bin:$PATH"
python3 -m ensurepip --default-pip
pip3 install pyqt5-sip
pip3 install pyqt5 --config-settings --confirm-license= --verbose
That last step calls qmake to compile all of Qt on your M1 and takes many minutes to complete, be patient and let it finish.
Since qt5-default was not available, I installed qt5-default's dependencies
sudo apt-get install qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools
after that I installed pyqt5 via apt-get first and afterwards via pip
sudo apt-get install pyqt5-dev
pip install pyqt5
now wheel seems to work
side-note:
I am not sure if sudo apt-get install pyqt5-dev is even necessary
The error message thrown here is misleading - it's not an issue with a sipbuild.api attribute. Indeed, in this case program qmake is missing, see last line of the Python traceback. Have a look if it's installed on your system and add it to your PATH variable. Otherwise, install it. On Linux this would be done with
sudo apt-get install qt5-qmake
I had this problem on my M1 Mac using Python 3.9.12 when I was trying to install a library: pip install pixellib.
The first thing I did was: pip install pixellib --verbose to see the whole log, and there I noticed that PyQt5 was waiting for an input. So then I found someone else with that issue, and used pip install pyqt5 --config-settings --confirm-license= --verbose which took some time to compile, but worked!
I could not get any of the above solutions to work but I managed to get it working using python3.9, PyQt5=5.15.2, pip=22.0.2 and sip=6.5.0 by using sudo apt-get install PyQt5. If you need it in a virtual environment, you can manually copy the PyQt5 folder from your default /usr/lib/python3/dist-packages to the site-packages folder in your virtual environment.
To all those that are struggling with Apple M1 installation, here is a working solution, specifically addressing the problem of installing the pixellib library that depends on PyQt5 but you can apply it equally to other libs:
PyQt5 is not supported on Apple M1, it needs qt6: https://www.reddit.com/r/learnpython/comments/o4w1ut/comment/h2jele3/?utm_source=share&utm_medium=web2x&context=3 , https://www.qt.io/product/qt6
this means you need to install PyQt6: python3 -m pip install PyQt6
go to the lib you need, in my case pixellib: https://pypi.org/project/pixellib/#files and
download the wheel file
get the wheel tool: pip install wheel
unpack the wheel wheel unpack pixellib-0.7.1-py3-none-any.whl
Change its dependency of PyQt5 to PyQt6
edit pixellib-0.7.1/pixellib-0.7.1.dist-info/METADATA
pyQt5 => pyQt6
pack it back wheel pack pixellib-0.7.1
install it: pip install pixellib-0.7.1-py3-none-any.whl
test in python: `
# should work
import pixellib
P.S. thanks to Terra and ChaOS for supporting work on the project underlying this report.
I finally managed to make it works on M1/M2 Macbook Pro.
None of these answers worked for me, so I looked at brew to install pyqt.
The following command will install pyqt5 via brew:
brew install pyqt#5
Then it just worked.
This can be resolved by switching to an environment with Python >= 3.8
Trying to install:
pip install multiprocessing
Getting an error:
Collecting multiprocessing
Using cached multiprocessing-2.6.2.1.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/private/var/folders/7s/sswmssj51p73hky4mkqs4_zc0000gn/T/pip-build-8c0dk6ai/multiprocessing/setup.py", line 94
print 'Macros:'
^
SyntaxError: Missing parentheses in call to 'print'
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/7s/sswmssj51p73hky4mkqs4_zc0000gn/T/pip-build-8c0dk6ai/multiprocessing/
Anyone knows the way to fix this?
In short: Multiprocessing is already pre-installed in python 3, no need to install it.
I found an answer to my question and it's a silly one - multiprocessing is already pre-installed in my version of Python (3.5.2) by default.
It won't show up in the list of packages in Anaconda >> Environments >> root, as it's not a third party package but an internal one.
If anyone is not sure whether this applies to you, just check from multiprocessing import Pool in your Python console.
This is true of all currently supported versions of Python (2.7 and 3.x) and according to a Python maintainer/contributor multiprocessing has been part of the standard library (batteries included) since Python 2.6. https://bugs.python.org/msg326646
You won't need to do a pip install multiprocessing anymore and do NOT include it in your requirements.txt unless you are maintaining a Python 2.4/2.5 application (please migrate!). On most versions you can just import multiprocessing and you should be fine.
Instead of pip install multiprocessing type instead:
pip install multiprocess
Of course you are trying to install multiprocessing library on python3 while this library is installed on python3 by default and doesn't need to install again.
Be Lucky
pip3.5 install multiprocessing-utils
https://pypi.org/project/multiprocessing-utils/
python -m pip install multiprocessing
Use python2.7 to install multiprocessing instead of using python3.5+
Python 2.7 to 3 changed from print "Hello World" to print('Hello World') making print a function now. Judging from the error message, it looks like pip or multiprocessing is expecting python 3.
You can check your Python version using this command:
python --version
You update pip if you already have python 3 on linux:
sudo apt-get install python3-pip
For mac, you can use the equivalent homebrew command. This should allow you to use a:
pip3 install multiprocessing
I'm trying to render a latex document I got from school. the problem seems to be coming from the document using the package "diagrams".
I get the error: "diagrams.sty Latex error: File 'pstricks.sty' not found"
When I go to the terminal and run sudo tlmgr install pstricks, I get the response tlmgr install: package already present: pstricks. So I'm not sure what to do next.
I'm using the app TexPad on MacOS and just updated my tex install via MacTex. Thanks in advance for any advice!
I am trying to install Elixir from the elixir website on Ubuntu 14.04. I get the following error when I execute $ sudo apt-get install esl-erlang. Can anyone help me out here ?
$ sudo apt-get install esl-erlang
Reading package lists... Done
Building dependency tree
Reading state information... Done
esl-erlang is already the newest version.
The following packages were automatically installed and are no longer required:
libgconf2-4 python-requests-whl python-setuptools-whl python-six-whl
python-urllib3-whl python-wheel
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 406 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up erlang-mode (1:21.0.5-1) ...
ERROR: erlang-mode is broken - called emacs-package-install as a new-style add-on, but has no compat file.
Install emacsen-common for emacs23
emacsen-common: Handling install of emacsen flavor emacs23
Wrote /etc/emacs23/site-start.d/00debian-vars.elc
Wrote /usr/share/emacs23/site-lisp/debian-startup.elc
Install emacsen-common for emacs24
emacsen-common: Handling install of emacsen flavor emacs24
Wrote /etc/emacs24/site-start.d/00debian-vars.elc
Wrote /usr/share/emacs24/site-lisp/debian-startup.elc
Install erlang-mode for emacs
Install erlang-mode for emacs23
install/erlang: Handling install for emacsen flavor emacs23
Wrote /usr/share/emacs23/site-lisp/erlang/erlang-edoc.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang-eunit.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang-flymake.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang-skels-old.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang-skels.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang-start.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang.elc
Wrote /usr/share/emacs23/site-lisp/erlang/erlang_appwiz.elc
In toplevel form:
erldoc.el:64:1:Error: Cannot open load file: cl-lib
Wrote /usr/share/emacs23/site-lisp/erlang/path.elc
ERROR: install script from erlang-mode package failed
dpkg: error processing package erlang-mode (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
erlang-mode
E: Sub-process /usr/bin/dpkg returned an error code (1)
Thanks
I don't know what is causing your errors, but you could try ASDF with the Elixir plugin. This allows you to install multiple versions of Elixir and its dependencies, and uses your user environment with shims instead of installing to system directories. This avoids many of the dependency and permission problems that comes with performing a single system-level installation.
It looks like you have both emacs23 and emacs24 installed. The failure is happening when trying to build for emacs23. Unless you really want emacs23 for some reason, remove it and then it should install fine:
sudo apt-get remove emacs23
It is possible you might have to delete some of the other emacs23-* packages by hand.
This problem only affects the erlang-mode package, which adds support for editing Erlang code in Emacs. If you're not using Emacs (or not developing Erlang in it), you can just uninstall that package:
sudo apt remove erlang-mode
As noted in Penguin Brian's answer, this happens when installing erlang-mode on a system using Emacs 23, as erlang-mode only supports Emacs 24 or newer. (Looks like this is a bug in the package: it shouldn't try to compile itself for unsupported Emacs versions.) If you do want to use erlang-mode in Emacs, I'd suggest running Emacs 24 and installing the Erlang mode from MELPA.
I am trying to set up the dev environment on my Mac. I'm following the steps listed on the site (http://developer.getpebble.com/sdk/install/mac/).
My installation fails at step#2 of Python libraries installation at line: "virtualenv --no-site-packages .env"
These are the errors I get when I execute the above line:
ValueError: failed to parse CPython sys.version: '2.7.5 (default, Mar 9 2014, 22:15:05) \n[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)]'
OSError: Command /Users/UserName/pebble...-dp1/.env/bin/python -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip failed with error code 1
Could anyone please help me resolve this?
I'm going to answer my own question. I resolved this issue by removing anaconda and re-installing python. (not an ideal solution, was my last resort)