I installed xcode dev tools first using
%xcode-select --install
then I installed Homebrew using
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
then I did
%brew install python3
%pip3 install pipenv
but when I call
%pip3
I get
% pip3
Traceback (most recent call last):
File "/Library/Developer/CommandLineTools/usr/bin/pip3", line 10, in <module>
sys.exit(main())
TypeError: 'module' object is not callable
This is where it says my pip3 and python3 are located
% which pip3
/usr/bin/pip3
% which python3
/usr/bin/python3
Can someone please help me solve this problem. I am trying to learn to program but I can't continue without fixing this
MacOS Catalina ships with it's own versions of python3 and pip3, so this is probably conflicts between macOS and Brew-installed Python libraries. I solved similar issues by no longer using Brew for anything related to Python.
My recommendation: From a fresh install of Catalina, run sudo pip3 install pipenv. Create a separate directory for each project you work on, and run pipenv shell from that directory every time you work on it. Don't ever bother installing any packages system-wide, and don't overwrite macOS's Python. Anything you do, do inside a Pipenv managed virtual environment -- only install packages via pipenv install <pkg>.
Doing all this will keep the right version of the Python binary and all related packages inside a directory inside ~/.local/share/virtualenvs/ for each project. This way, future macOS updates shouldn't every break dependencies.
I had a similar problem after upgrading to Catalina since I was already using homebrew and Python/pipenv stopped to work as expected. My Python crashed every time, I ran pipenv install with an error described in this developer.apple.com thread. The answer by Mickey Ristroph sounds like a okay'ish workaround, but it doesn't really solve the problem.
I want to be able to use homebrew for all my MacOS installed software - including Python. But there was help, since the problem was the usage of a wrong version libcrypto dylib version. To fix the issue, update & upgrade brew packages and be sure openssl is installed:
brew update && brew upgrade && brew install openssl
Then we create new symbolic links to the homebrew installed libssl.dylib and libcrypto.dylib libraries:
# go to homebrew installed openssl dir:
cd /usr/local/Cellar/openssl/1.0.2t/lib
sudo cp libssl.1.0.0.dylib libcrypto.1.0.0.dylib /usr/local/lib/
cd /usr/local/lib
# if there are links already, you may backup them:
mv libssl.dylib libssl_bak.dylib
mv libcrypto.dylib libcrypto_bak.dylib
# now create new symbolic links:
sudo ln -s libssl.1.0.0.dylib libssl.dylib
sudo ln -s libcrypto.1.0.0.dylib libcrypto.dylib
Now my homebrew installed Python (and pipenv) works like a charm again.
You need to change the raw command used to install libraries and supports in macOS Catalina to this:
python3 -m pip install pipenv
(instead of pip3 install pipenv)
Related
I'm attempting to make a website with a few others for the first time, and have run into a weird error when trying to use Django/Python/VirtualEnv. I've found solutions to this problem for other operating systems, such as Ubuntu, but can't find any good solutions for Mac.
This is the relevant code being run:
virtualenv -p python3 venv
source venv/bin/activate
pip install -r requirements.txt
After running that block, I get the following errors:
AssertionError
Failed building wheel for django-toolbelt
Running setup.py bdist_wheel for psycopg2
...
AssertionError
Failed building wheel for psycopg2
Failed to build django-toolbelt psycopg2
I believe I've installed the "django-toolbelt" and "psycopg2", so I'm not sure why it would be failing.
The only difference I can think of is that I did not use the command
sudo apt-get install libpq-dev
as was instructed for Ubuntu usage as I believe that installing postgresql with brew took care of the header.
Thanks for any help or insight!
For MacOS users
After trying all the above methods (which did not work for me on MacOS 10.14), that one worked :
Install openssl with brew install openssl if you don't have it already.
add openssl path to LIBRARY_PATH :
export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/openssl/lib/
install psycopg2 with pip pip3 install psycopg2
I had the same problem on Arch linux. I think that it's not an OS dependant problem. Anyway, I fixed this by finding the outdated packages and updating then.
pip uninstall psycopg2
pip list --outdated
pip install --upgrade wheel
pip install --upgrade setuptools
pip install psycopg2
I was also getting same error.
Using Python 3.7.3 and pip 19.1.1.
I used following command.
pip install psycopg2-binary==2.8.3
TDLR
If you aren't used to installing Python C-extensions, and psycopg2 isn't a core part of your work, try
pip install psycopg2-binary
Building Locally
psycopg2 is a C-extension, so it requires compilation when being installed by pip. The Build Prerequisites section of the docs explain what must be done to make installation via pip possible. In summary (for psycopg 2.8.5):
a C compiler must be installed on the machine
the Python header files must be installed
the libpq header files must be installed
the pg_config program must be installed (it usually comes with the libpq headers) and on $PATH.
With these prerequisites satisfied, pip install psycopg2 ought to succeed.
Installing pre-compiled wheels
Alternatively, pip can install pre-compiled binaries so that compilation (and the associated setup) is not required. They can be installed like this:
pip install psycopg2-binary
The docs note that
The psycopg2-binary package is meant for beginners to start playing with Python and PostgreSQL without the need to meet the build requirements.
but I would suggest that psycopg2-binary is often good enough for local development work if you are not using psycopg2 directly, but just as a dependency.
Concluding advice
Read the informative installation documentation, not only to overcome installation issues but also to understand the impact of using the pre-compiled binaries in some scenarios.
I had same problem and this appears to be a Mojave Issue, I was able to resolve with:
sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /
For Mac OS X users:
1. First check your postgresql path by running this command in terminal:
pg_config
If this fails lookup how to add pg_config to your path.
2. Next install Xcode Tools by running this command in terminal:
xcode-select --install
If you have both those sorted out now try to install psycopg2 again
For MacOS users, this question has the correct solution:
install command line tools if necessary:
xcode-select --install
then
env LDFLAGS="-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib" pip install psycopg2
I was also facing the same after running all the above commands, but the following two commands worked for me:
Instead of pip, use this:
sudo apt-get install libpq-dev
then run this command:
pip install psycopg2
On OS X, I was able to solve this by simply upgrading wheel before installing psycopg2:
pip install --upgrade wheel
For OSX Sierra users, it seems that an xcode update is the solution: Can't install psycopg2 package through pip install... Is this because of Sierra?
I tried all the above solutions but they did not work for me. What I did was change the psycopg2 version in my requirements.txt file from psycopg2==2.7.4 to psycopg2==2.7.6
Is your error message complete? the most encountered reason for failing to install psycopg2 on mac from pip is pg_config is not in path.
by the way, using macports or fink to install psycopg2 is more recommended way, so you don't have to worry about pg_config, libpq-dev and python-dev.
plus, are using Python 3.5? then upgrage your wheel to > 0.25.0 using pip.
I faced the same issue, but the answers above didn't work for me.
So this is what I did in my requirements.txt
psycopg2-binary==2.7.6.1 and it worked fine
I had this issue on several packages, including psycopg2, numpy, and pandas. I simply removed the version from the requirements.txt file, and it worked.
So instead of psycopg2-binary==2.7.6.1 I just had psycopg2-binary.
I know you are asking for development environment but if you are deploying on server say, Heroku. Just add below line in the requirements.txt of your project.
django-heroku==0.3.1
As this package itself will install the required packages like psycopg2 on server deployment.So let the server(heroku) should take care of it.
sudo apt install libpq-dev python3.X-dev
where X is the sub version,
these should be followed by :
pip install --upgrade wheel
pip install --upgrade setuptools
pip install psycopg2
Enjoy !!!
I solved my problem by updating/installing vs_BuildTools. The link to the software was given in the error itself.
Error Image
Fixed by installing python3.7-dev: sudo apt install python3.7-dev, based on the link.
Python: 3.7
Ubuntu: 20.04.3 LTS
I'm using virtualenv and I need to install "psycopg2".
I have done the following:
pip install http://pypi.python.org/packages/source/p/psycopg2/psycopg2-2.4.tar.gz#md5=24f4368e2cfdc1a2b03282ddda814160
And I have the following messages:
Downloading/unpacking http://pypi.python.org/packages/source/p/psycopg2/psycopg2
-2.4.tar.gz#md5=24f4368e2cfdc1a2b03282ddda814160
Downloading psycopg2-2.4.tar.gz (607Kb): 607Kb downloaded
Running setup.py egg_info for package from http://pypi.python.org/packages/sou
rce/p/psycopg2/psycopg2-2.4.tar.gz#md5=24f4368e2cfdc1a2b03282ddda814160
Error: pg_config executable not found.
Please add the directory containing pg_config to the PATH
or specify the full executable path with the option:
python setup.py build_ext --pg-config /path/to/pg_config build ...
or with the pg_config option in 'setup.cfg'.
Complete output from command python setup.py egg_info:
running egg_info
creating pip-egg-info\psycopg2.egg-info
writing pip-egg-info\psycopg2.egg-info\PKG-INFO
writing top-level names to pip-egg-info\psycopg2.egg-info\top_level.txt
writing dependency_links to pip-egg-info\psycopg2.egg-info\dependency_links.txt
writing manifest file 'pip-egg-info\psycopg2.egg-info\SOURCES.txt'
warning: manifest_maker: standard file '-c' not found
Error: pg_config executable not found.
Please add the directory containing pg_config to the PATH
or specify the full executable path with the option:
python setup.py build_ext --pg-config /path/to/pg_config build ...
or with the pg_config option in 'setup.cfg'.
----------------------------------------
Command python setup.py egg_info failed with error code 1
Storing complete log in C:\Documents and Settings\anlopes\Application Data\pip\p
ip.log
My question, I only need to do this to get the psycopg2 working?
python setup.py build_ext --pg-config /path/to/pg_config build ...
Note: Since a while back, there are binary wheels for Windows in PyPI, so this should no longer be an issue for Windows users. Below are solutions for Linux, Mac users, since lots of them find this post through web searches.
Option 1
Install the psycopg2-binary PyPI package instead, it has Python wheels for Linux and Mac OS.
pip install psycopg2-binary
Option 2
Install the prerequsisites for building the psycopg2 package from source:
Debian/Ubuntu
Python 3
sudo apt install libpq-dev python3-dev
You might need to install python3.8-dev or similar for e.g. Python 3.8.
Python 2
sudo apt install libpq-dev python-dev
If that's not enough, try
sudo apt install build-essential
or
sudo apt install postgresql-server-dev-all
as well before installing psycopg2 again.
CentOS 6
See Banjer's answer
macOS
See nichochar's answer
On CentOS, you need the postgres dev packages:
sudo yum install python-devel postgresql-devel
That was the solution on CentOS 6 at least.
If you're on a mac you can use homebrew
brew install postgresql
And all other options are here: http://www.postgresql.org/download/macosx/
On Mac Mavericks with Postgres.app version 9.3.2.0 RC2 I needed to use the following code after installing Postgres:
sudo PATH=$PATH:/Applications/Postgres.app/Contents/Versions/9.3/bin pip install psycopg2
I recently configured psycopg2 on a windows machine. The easiest install is using a windows executable binary. You can find it at http://stickpeople.com/projects/python/win-psycopg/.
To install the native binary in a virtual envrionment, use easy_install:
C:\virtualenv\Scripts\> activate.bat
(virtualenv) C:\virtualenv\Scripts\> easy_install psycopg2-2.5.win32-py2.7-pg9.2.4-release.exe
For Python 3 you should use sudo apt-get install libpq-dev python3-dev under Debian.
This is what worked for me (On RHEL, CentOS:
sudo yum install postgresql postgresql-devel python-devel
And now include the path to your postgresql binary dir with you pip install:
sudo PATH=$PATH:/usr/pgsql-9.3/bin/ pip install psycopg2
Make sure to include the correct path. Thats all :)
UPDATE: For python 3, please install python3-devel instead of python-devel
The answers so far are too much like magic recipes. The error that you received tells you that pip cannot find a needed part of the PostgreSQL Query library. Possibly this is because you have it installed in a non-standard place for your OS which is why the message suggests using the --pg-config option.
But a more common reason is that you don't have libpq installed at all. This commonly happens on machines where you do NOT have PostgreSQL server installed because you only want to run client apps, not the server itself. Each OS/distro is different, for instance on Debian/Ubuntu you need to install libpq-dev. This allows you to compile and link code against the PostgreSQL Query library.
Most of the answers also suggest installing a Python dev library. Be careful. If you are only using the default Python installed by your distro, that will work, but if you have a newer version, it could cause problems. If you have built Python on this machine then you already have the dev libraries needed for compiling C/C++ libraries to interface with Python. As long as you are using the correct pip version, the one installed in the same bin folder as the python binary, then you are all set. No need to install the old version.
If you using Mac OS, you should install PostgreSQL from source.
After installation is finished, you need to add this path using:
export PATH=/local/pgsql/bin:$PATH
or you can append the path like this:
export PATH=.../:usr/local/pgsql/bin
in your .profile file or .zshrc file.
This maybe vary by operating system.
You can follow the installation process from http://www.thegeekstuff.com/2009/04/linux-postgresql-install-and-configure-from-source/
On Debian/Ubuntu:
First install and build dependencies of psycopg2 package:
# apt-get build-dep python-psycopg2
Then in your virtual environment, compile and install psycopg2 module:
(env)$ pip install psycopg2
Run below commands and you should be fine
$ apt-get update
$ apt install python3-dev libpq-dev
$ pip3 install psycopg2
I've done this before where in windows you install first into your base python installation.
Then, you manually copy the installed psycopg2 to the virtualenv install.
It's not pretty, but it works.
Before you can install psycopg2 you will need to install the python-dev package.
If you're working from Linux (and possibly other systems but i can't speak from experience) you will need to make sure to be quite exact about what version of python your running when installing the dev package.
For example when I used the command:
sudo apt-get install python3-dev
I still ran into the same error when trying to
pip install psycopg2
As I am using python 3.7 I needed to use the command
sudo apt-get install python3.7-dev
Once I did this I ran into no more issues. Obviously if your on python version 3.5 you would change that 7 to a 5.
Besides installing the required packages, I also needed to manually add PostgreSQL bin directory to PATH.
$vi ~/.bash_profile
Add PATH=/usr/pgsql-9.2/bin:$PATH before export PATH.
$source ~/.bash_profile
$pip install psycopg2
For MacOS,
Use the below command to install psycopg2, works like charm!!!
env LDFLAGS="-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib" pip install psycopg2
On windows XP you get this error if postgres is not installed ...
I installed Postgresql92 using the RedHat / CentOS repository on PG's downloads site http://www.postgresql.org/download/linux/redhat/
To get pg_config, I had to add /usr/pgsql-9.2/bin to PATH.
On Fedora 24: For Python 3.x
sudo dnf install postgresql-devel python3-devel
sudo dnf install redhat-rpm-config
Activate your Virtual Environment:
pip install psycopg2
Psycopg2 Depends on Postgres Libraries.
On Ubuntu You can use:
apt-get install libpq-dev
Then:
pip install psycopg2
I've been battling with this for days, and have finally figured out how to get the "pip install psycopg2" command to run in a virtualenv in Windows (running Cygwin).
I was hitting the "pg_config executable not found." error, but I had already downloaded and installed postgres in Windows. It installed in Cygwin as well; running "which pg_config" in Cygwin gave "/usr/bin/pg_config", and running "pg_config" gave sane output -- however the version installed with Cygwin is:
VERSION = PostgreSQL 8.2.11
This won't work with the current version of psycopg2, which appears to require at least 9.1. When I added "c:\Program Files\PostgreSQL\9.2\bin" to my Windows path, the Cygwin pip installer was able to find the correct version of PostgreSQL, and I was able to successfully install the module using pip. (This is probably preferable to using the Cygwin version of PostgreSQL anyway, as the native version will run much quicker).
On OpenSUSE 13.2, this fixed it:
sudo zypper in postgresql-devel
For lowly Windows users were stuck having to install psycopg2 from the link below, just install it to whatever Python installation you have setup. It will place the folder named "psycopg2" in the site-packages folder of your python installation.
After that, just copy that folder to the site-packages directory of your virtualenv and you will have no problems.
here is the link you can find the executable to install psycopg2
http://www.lfd.uci.edu/~gohlke/pythonlibs/
On Ubuntu I just needed the postgres dev package:
sudo apt-get install postgresql-server-dev-all
*Tested in a virtualenv
I could install it in a windows machine and using Anaconda/Spyder with python 2.7 through the following commands:
!pip install psycopg2
Then to establish the connection to the database:
import psycopg2
conn = psycopg2.connect(dbname='dbname',host='host_name',port='port_number', user='user_name', password='password')
In Arch base distributions:
sudo pacman -S python-psycopg2
pip2 install psycopg2 # Use pip or pip3 to python3
On OSX 10.11.6 (El Capitan)
brew install postgresql
PATH=$PATH:/Library/PostgreSQL/9.4/bin pip install psycopg2
On OSX with macports:
sudo port install postgresql96
export PATH=/opt/local/lib/postgresql96/bin:$PATH
if pip is not working than you can download .whl file from here https://pypi.python.org/pypi/psycopg2
extract it..
than python setup.py install
I was having this problem, the main reason was with 2 equal versions installed. One by postgres.app and one by HomeBrew.
If you choose to keep only the APP:
brew unlink postgresql
pip3 install psycopg2
Installation on MacOS
Following are the steps, which worked for me and my team members while installing psycopg2 on Mac OS Big Sur and which we have extensively tested for Big Sur. Before starting make sure you have the Xcode command-line tool installed. If not, then install it from the Apple Developer site. The below steps assume you have homebrew installed. If you have not installed homebrew then install it. Last but not the least, it also assumes you already have PostgreSQL installed in your system, if not then install it. Different people have different preferences but the default installation method on the official PostgreSQL site via Enterprise DB installer is the best method for the majority of people.
Put up the linkage to pg_config file in your .zshrc file by: export PATH="$PATH:/Library/PostgreSQL/12/bin:$PATH". This way you are having linkage with the pg_config file in the /Library/PostgreSQL/12/bin folder. So if your PostgreSQL installation is via other means, like Postgres.app or Postgres installation via homebrew, then you need to have in your .zshrc file the link to pg_config file from the bin folder of that PostgreSQL installation as psycopg2 relies on that.
Install OpenSSL via Homebrew using the command brew install openssl. The reason for this is that libpq, the library which is the basis of psycopg2, uses openssl - psycopg2 doesn't use it directly. After installing put the following commands in your .zshrc file:
export PATH="/usr/local/opt/openssl#1.1/bin:$PATH"
export LDFLAGS="-L/usr/local/opt/openssl#1.1/lib"
export CPPFLAGS="-I/usr/local/opt/openssl#1.1/include"
By doing this you are creating necessary linkages in your directory. These commands are suggested by brew while you install openssl and have been directly picked up from there.
Now comes the most important step, which is to install libpq using the command brew install libpq. This installs libpq library. As per the documentation
libpq is the C application programmer's interface to PostgreSQL. libpq is a set of library functions that allow client programs to pass queries to the PostgreSQL backend server and to receive the results of these queries.
Link libpq using brew link libpq, if this doesn't work then use the command: brew link libpq --force.
Also put in your .zshrc file the following export PATH="/usr/local/opt/libpq/bin:$PATH". This creates all the necessary linkages for libpq library .
Now restart the terminal or use the following command source ~/.zshrc.
This works even when you are working in conda environment.
N.B. pip install psycopg2-binaryshould be avoided because as per the developers of the psycopg2 library
The use of the -binary packages in production is discouraged because in the past they proved unreliable in multithread environments. This might have been fixed in more recent versions but I have never managed to reproduce the failure.
I would like to install wxPython/4.0.1
On this page all kind of wheel files are shown. I have Ubuntu 14.04 64 bit and Python 3.5 so I assume I should use wxPython-4.0.1-cp35-cp35m-win32.whl but this is not total clear to me.
The page lacks a simple full installation instruction.
#nepix32 helped me and shown the Linux version https://wxpython.org/pages/downloads/ and I have been pointing to https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-14.04/
apt-get
My preference is using apt-get, so I search on SO and found : Installing wxpython on ubuntu 14.04 and using travis-ci with wxpython tests
which both fails.
So I continue searching on wheel.
Install wheel
So I continue searching on wheel. On SO I found : How do I install a Python package with a .whl file?6
First I read https://stackoverflow.com/tags/python-wheel/info and https://pypi.python.org/pypi/wheel
Wheel seems not standard installed, so I downloaded the file wheel-0.30.0 and extracted it.
First I upgraded pip :
sudo pip install --upgrade pip
and then executed the setup.py in wheel :
sudo python3.5 setup.py install
which seems successful.
Try to install wxpython using wheel
Then I wanted to install the wheel file :
sudo pip install /home/hulsman/Downloads/wxPython-4.0.1-cp35-cp35m-win32.whl
I thought for python3.x pip3 should be used, instead of pip. All examples show pip. I tried both without success.
I tried also :
sudo -H pip3 install /home/hulsman/Downloads/wxPython-4.0.1-cp35-cp35m-win32.whl
All attemps returned almost the same error message :
wxPython-4.0.1-cp35-cp35m-win32.whl is not a supported wheel on this platform.
Using specific Linux version
I used
wxPython-4.0.1-cp35-cp35m-linux_x86_64.whl
but do not know the difference of the 'm' and the 'mu' version. The result is :
sudo pip install /home/hulsman/Downloads/wxPython-4.0.1-cp35-cp35m-linux_x86_64.whl wxPython
The directory '/home/hulsman/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/home/hulsman/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
wxPython-4.0.1-cp35-cp35m-linux_x86_64.whl is not a supported wheel on this platform.
hulsman#vbox11:~/Downloads$
and with the -H flag :
hulsman#vbox11:~/Downloads$ sudo -H pip install /home/hulsman/Downloads/wxPython-4.0.1-cp35-cp35m-linux_x86_64.whl wxPython
wxPython-4.0.1-cp35-cp35m-linux_x86_64.whl is not a supported wheel on this platform.
hulsman#vbox11:~
Check my environment
$ pip -V | grep -o "(.*)"
(python 3.4)
Pip points to Python3.4
$ pip3.5 install -i https://localhost --trusted-host localhost cffi==1.11.4
pip3.5: command not found
pip3.5 does not exist
$ python3.5 -c "import pip; print(pip.pep425tags.get_abbr_imp())"
Traceback (most recent call last):
File "<string>", line 1, in <module>
AttributeError: module 'pip.pep425tags' has no attribute 'get_abbr_imp'
This fails. So I tried :
$ python3.5 -c "import pip; print(pip.pep425tags.get_abbr_impl())"
cp
So I tried to update pip :
~$ pip install -U pip
Requirement already up-to-date: pip in /usr/local/lib/python3.4/dist-packages
I tried to follow the suggestions in Install pip for python 3.5 of L. Martin, but without success.
with pip3 the behavior is the same.
Could you tell me what when wrong, and how can I solve this?
Installing wxPython in Linux is not as straightforward as Windows/OSX wheels because there are too many variants: distro, GTK2/GTK3 etc. But they do explain how to install it in Linux:
https://wxpython.org/pages/downloads/
Installing with a downloaded wheel
You already found the correct wheel (cp35m-linux_x86_64) in wxPython Extras, but you must install it with the targeted Python version. If you can't find pip for your target Python, just use the -m option of Python:
python3.5 -m pip install wxPython-4.0.1-cp35-cp35m-linux_x86_64.whl
Installing the usual way from pypi
The normal pip install method can work too, but for wxPython in Linux, that will try to build the wheel for you from the source archive - assuming you have all the dependencies. It will be inconvenient, and slow.
Again, you must run it with the correct targeted version of Python:
python3.5 -m pip install -U wxpython
Installing directly from wxpython.org wheels (recommended)
The easiest way is to get it directly from them:
python3.5 -m pip install wxPython -U --pre \
-f https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-14.04
Or, if you just wanted to download the correct wheel to manually install later, and specifically wanted to target a specific python version, say 3.5:
pip download wxPython \
-f https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-14.04 \
--only-binary=:all: \
--platform linux_x86_64 \
--abi cp35m \
--python-version 35 \
-d "${HOME}/pymodules/wxpython-py35-whl"
Change the distro in the url as needed. Note that the pip version is not important here.
The difference in 'm' and 'mu' is no longer relevant in Python 3. It was related to ucs2/ucs4 unicode build flags. If you were targeting Python 2.7 you would use the abi option to pick the 'mu' version like this: --abi cp27mu
Since pip 19.2 added a new debug command, these kinds of obscure issues may get easier to diagnose. That useless not a supported wheel on this platform message certainly didn't help anyone.
when I install turtle,meet some problem like this :
My python version is 3.5.2 and OS is Ubuntu 16.04 LTS
apt install python3-tk
It is tested and works perfectly on Linux Mint and Ubuntu...
Edit:
The reason is because turtle is based on tkinter, for example:
I assume you ask for Turtle to draw forward, left, etc.
It is already installed with Python. You don't have to install it. Probably You may have to install python3-tk using pip3 install python3-tk or rather apt install python3-tk
See
pip search turtle
part of result
turtle (0.0.2) - Turtle is an HTTP proxy whose purpose is to throttle connections to
specific hostnames to avoid breaking terms of usage of those API
providers (like del.icio.us, technorati and so on).
You try to install some HTTP proxy
except ValueError, ve: is correct syntax in Python 2 but not in Python 3.
I was am using Ubuntu 18.10 and recently after configuring Python 3 as my default environment I got the same error.
I used this command to reconfigure it and it worked.
sudo apt install python3-tk
Success!!
pip install python-tk
then go to python shell and type
from turtle import*
fd(100)
I have had the same error but on Mac os and I tried to update my python via brew. This fixed my problem.
Firstly, give brew permission to access your shared files,
sudo chown -R $(whoiam) /usr/local/share
This was for another problem with brew :D, you can test the next command and use this only if you need to.
Finally,
brew upgrade python3
this worked for me. I am using Pop Os 22.04. Type these commands on the terminal. Hope this will for for you as well.
To install the current version of Python3:
sudo apt-get install python3
To install the pip package manager:
sudo apt install python3-pip
Run the below command in the terminal to install the Turtle library
sudo pip3 install PythonTurtle
To verify the installation:
python3 -m pip show PythonTurtle
I had older version of python pre-installed on Ubuntu. I recently installed new python3.4 version without removing the older one. In python3 I am not able to see the command history. Searching around, I found that readline module is responsible for the command history and it is missing in python3. So I installed it using
sudo apt-get install libreadline6-dev
It gets installed without any error but python3 still has no readline module. How do I install it to get command history in python3.
I was experiencing the same problem and found my fix here.
sudo apt-get install libncurses5-dev
sudo -H pip3 install readline
I'm not sure how universal the answer is though, you might need more packages (for example the libreadline6-dev package you mentioned) before you could install readline with pip3