I am new to Python and try to install Jupyter Notebook from within a Windows command prompt window using:
pip install jupyter
But after a couple of minutes of downloading, an error message is displayed as shown below:
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\asd\appdata\local\programs\python\python38-32\python.exe
' 'c:\users\asd\appdata\local\programs\python\python38-32\lib\site-packages\pip\
_vendor\pep517\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\asd\Ap
pData\Local\Temp\tmpnj_hhq6y'
cwd: C:\Users\asd\AppData\Local\Temp\pip-install-_pnki5r8\pywinpty
Complete output (6 lines):
Cargo, the Rust package manager, is not installed or is not on PATH.
This package requires Rust and Cargo to compile extensions. Install it through
the system's package manager or via https://rustup.rs/
Checking for Rust toolchain....
----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\asd\appdata\local\progr
ams\python\python38-32\python.exe' 'c:\users\asd\appdata\local\programs\python\p
ython38-32\lib\site-packages\pip\_vendor\pep517\_in_process.py' prepare_metadata
_for_build_wheel 'C:\Users\asd\AppData\Local\Temp\tmpnj_hhq6y' Check the logs for
full command output.
WARNING: You are using pip version 20.2.1; however, version 21.1 is available.
You should consider upgrading via the 'c:\users\asd\appdata\local\programs\pytho
n\python38-32\python.exe -m pip install --upgrade pip' command.
I have attached here just the last part of the error output.
How to fix this error for a successful installation of Jupyter Notebook?
EDIT1: I installed the Rust package from the link in the error message. After that I tried installing Jupyter Notebook once again, and this time after proceeding a few steps further than before, it output another error:
Building wheels for collected packages: pywinpty
Building wheel for pywinpty (PEP 517) ... - WARNING: Subprocess output does
not appear to be encoded as cp1252
WARNING: Subprocess output does not appear to be encoded as cp1252
error
ERROR: Command errored out with exit status 1:
command: 'c:\users\asd\appdata\local\programs\python\python38-32\python.exe'
'c:\users\asd\appdata\local\programs\python\python38-32\lib\site-packages\pip\_v
endor\pep517\_in_process.py' build_wheel 'C:\Users\asd\AppData\Local\Temp\tmpaj5
u66_y'
cwd: C:\Users\asd\AppData\Local\Temp\pip-install-mep4ye8d\pywinpty
Complete output (60 lines):
Running `maturin pep517 build-wheel -i c:\users\asd\appdata\local\programs\pyt
hon\python38-32\python.exe`
Compiling proc-macro2 v1.0.26
Compiling unicode-xid v0.2.2
Compiling syn v1.0.71
Compiling winapi v0.3.9
Compiling jobserver v0.1.22
error: could not compile `proc-macro2`
To learn more, run the command again with --verbose.
warning: build failed, waiting for other jobs to finish...
error: build failed
dY'¥ maturin failed
Caused by: Failed to build a native library through cargo
Caused by: Cargo build finished with "exit code: 101": `cargo rustc --messag
e-format json --manifest-path Cargo.toml --release --lib --`
dY\x8d1 Building a mixed python/rust project
dY"- Found pyo3 bindings
dY\x90\x8d Found CPython 3.8 at c:\users\asd\appdata\local\programs\python\pyt
hon38-32\python.exe
error: linker `link.exe` not found
|
= note: The system cannot find the file specified. (os error 2)
note: the msvc targets depend on the msvc linker but `link.exe` was not found
note: please ensure that VS 2013, VS 2015, VS 2017 or VS 2019 was installed wi
th the Visual C++ option
error: aborting due to previous error
error: linker `link.exe` not found
|
= note: The system cannot find the file specified. (os error 2)
note: the msvc targets depend on the msvc linker but `link.exe` was not found
note: please ensure that VS 2013, VS 2015, VS 2017 or VS 2019 was installed wi
th the Visual C++ option
error: aborting due to previous error
error: linker `link.exe` not found
|
= note: The system cannot find the file specified. (os error 2)
note: the msvc targets depend on the msvc linker but `link.exe` was not found
note: please ensure that VS 2013, VS 2015, VS 2017 or VS 2019 was installed wi
th the Visual C++ option
error: aborting due to previous error
Error: command ['maturin', 'pep517', 'build-wheel', '-i', 'c:\\users\\asd\\app
data\\local\\programs\\python\\python38-32\\python.exe'] returned non-zero exit
status 1
----------------------------------------
ERROR: Failed building wheel for pywinpty
Failed to build pywinpty
ERROR: Could not build wheels for pywinpty which use PEP 517 and cannot be insta
lled directly
WARNING: You are using pip version 20.2.1; however, version 21.1 is available.
You should consider upgrading via the 'c:\users\asd\appdata\local\programs\pytho
n\python38-32\python.exe -m pip install --upgrade pip' command.
Upgrade your pip first:
pip install --upgrade pip
Then:
pip install jupyter
I'reached this post after failing to install notebook on a 32-bit python 3.8.3 execution. And as far as I found, pywinpty, which is a dependence, does not support 32-bit executions (see sources below).
I solved the problem by installing python on its 64-bit version.
Sources:
How do I determine if my python shell is executing in 32bit or 64bit?
pip install fails on Python 3.8 32-bit, prevents Jupyter install #129 which simply says that wheels cannot be installed with 32 bit Python and that you should use 64 bit Python instead.
We can't generate 32 bit wheels, sorry. Please use a 64bit build of Python.. Was not my case but might be useful this similar issue when using python 3.8 64-bit
Error installing Jupyter & pywinpty (Python)
https://github.com/spyder-ide/pywinpty/issues/123
Do
pip install wheel
and try again. It worked for me.
What to do:
Check if your python is 64-bit version. If no, go to python site (for example, here is the link to download 3.7.9. Just click at the version that has label "for AMD64/EM64T/x64", do it with any version you wish, just I don't like to use the newest version). Remove yours (with the uninstall file) and download this. Don't forget to put the checkmark near "Add PATH" below;
Download Rust (the description is inside) - you need some files. Check the PATHs - if you want to change them, do it (the names of the variables and where they are - both are written, you can search in the Internet how to change PATH var's (for example));
Go to Windows Shell with admin mode (Win+X and you get the field) - here is the most comfortable place to work;
Go to your python.exe (for example, my way is C:\Users\user\AppData\Local\Programs\Python\Python37) - just for sure;
python.exe python -m pip install --upgrade pip;
python.exe pip install jupyter;
If an error was returned that contains the missing of wheel, try to download it: python.exe pip install wheel.
Donwload any library you miss during installation and continue since the step you stopped at.
Try using Anaconda. link to install conda https://www.anaconda.com/products/individual
then cmd : conda install numpy
cmd: conda install jupyter
cmd : jupyter notebook
The error message looks quite clear, you needs to install Cargo via https://rustup.rs/
I have faced the same issue when I'm using vscode. The simplest solution is to use conda instead of pip
conda install jupyterlab
I am having the error shown below when I type the installation command of channels: python -m pip install -U channels
running build_ext
building 'twisted.test.raiser' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Bu
ild Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
ERROR: Failed building wheel for twisted
Running setup.py clean for twisted
Failed to build twisted
Installing collected packages: twisted, daphne, channels
Running setup.py install for twisted ... error
I installed the twisted .whl file from binary python extensions which is compatible with my python version
I tried downloading the 'PyPortfolioOpt' package on my MacBook Pro (iOS 11.0.1) but it always shows an error.
I've downloaded the Xcode developer tools and already upgraded the latest pip3 setup-tools. I am using python 3.9.
The error:
1 error generated.
error: command '/usr/bin/gcc' failed with exit code 1
ERROR: Failed building wheel for cvxopt
Running setup.py clean for cvxopt
Failed to build cvxopt
Installing collected packages: cvxopt, PyPortfolioOpt
Running setup.py install for cvxopt ... error
ERROR: Command errored out with exit status 1:
For some reason, probably something to do with how new python 3.9 is and how little bug fixes have come out so far, python 3.9 didn't work for me at all. I have upgraded a few times before, but never did it result in as many bugs as when I tried installing python 3.9. I recommend firstly trying $ python3 -m pip install PyPortfolioOpt, and if that doesn't work go back to python 3.8 or 3.7, that's what I'm on now and everything works fine now for me.
I am new to Python and am trying to install Eve. I have Python 3.6.3 installed and am using pipenv. When I run pipenv install eve it fails with the error (here's an excerpt):
running build_ext
building 'simplejson._speedups' extension
error: [WinError 3] The system cannot find the path specified: 'C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v8.1\\lib'
_______________________________________
Error: An error occurred while installing eve!
Failed building wheel for simplejson
From what I can tell, this path is for the Windows 8.1 SDK.
What can I do to fix this? Do I need to install this SDK in order for simplejson to work? I don't really want to install this SDK, so why does simplejson need this?
I suspect that I don't actually need this SDK as I assume all of this can normally be executed in a Linux environment. Why would this dependency exist when executing on a Windows 7 machine as I am trying to do?
I found the answer. Yes, I do need the SDK. Windows compilers are required to "Install a non-pure Python package from sources with Pip" on Windows machines and are included in Microsoft Build Tools. More information can be found here: https://wiki.python.org/moin/WindowsCompilers
I am having severe problems installing pycddlib for Python 3.6 on Windows 10.
The package can be found here. However there is no wheel for Python 3.6 and hence the provided wheels to not support my system.
I followed the instructions on this site to build a wheel. I tried to install Visual C++ Build Tools 2015 however I had no sucess in installing the package as pip install pycddlib throws the error
C:\Program Files (x86)\Microsoft Visual Studio
14.0\VC\BIN\x86_amd64\cl.exe' failed with exit status 2
Instead I installed Visual Studio 2017 with Python development workload and the Native development tools option. Trying to install pycddlib now does not throw the same error but simply the following error
Failed building wheel for pycddlib
This thread suggests that one has to install required packages first, but pycddlib does not seem to require anything else
This website suggests building instructions for the package pycddlib. Nonetheless I am lacking knowledge to update theses instructions in order to build the correct thing for my setup.
Thanks for your help!
The developer has added support for python 3.6. Hence there are working wheels for Python 3.6 under this link available now.