I am trying to install mininet-wifi. After downloading it, I have been using the following command to install it:
sudo util/install.sh -Wlnfv
However, I keep getting the error:
E: Unable to locate package python-pip
I have tried multiple times to download python-pip. I know mininet-wifi utilizes python 2 instead of python 3. I have tried to download python-pip using the command:
sudo apt-get install python-pip
But that leads to the same error:
E: Unable to locate package python-pip
Pip for Python 2 is not included in the Ubuntu 20.04 repositories. You need to install pip for Python 2 using the get-pip.py script.
1. Start by enabling the universe repository:
sudo add-apt-repository universe
2. Update the packages index and install Python 2:
sudo apt update
sudo apt install python2
3. Use curl to download the get-pip.py script:
curl https://bootstrap.pypa.io/get-pip.py --output get-pip.py
4. Once the repository is enabled, run the script as sudo user with python2 to install pip :
sudo python2 get-pip.py
If an error occurs, as a fallback, the specific 2.7 version of get-pip.py can be used:
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py
Pip will be installed globally. If you want to install it only for your user, run the command without sudo. The script will also install setuptools and wheel, which allow you to install source distributions
Verify the installation by printing the pip version number:
pip2 --version
The output will look something like this:
pip 20.0.2 from /usr/local/lib/python2.7/dist-packages/pip (python 2.7)
Since Python 2 is past its end-of-life, few packages for Python2 are included in 20.04. You have to install pip for Python 2 manually:
First, install Python 2:
sudo apt install python2
Then, follow https://pip.pypa.io/en/stable/installing/ , using python2:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python2 get-pip.py
You can run the second step with sudo. If you don't use sudo, you'll need to change PATH, as suggested by the installation message. Alternatively, and possibly better (since it doesn't change PATH), use
python2 -m pip
whenever you need pip2.
In my case, the curl command for downloading get-pip.py gave a syntax error on running sudo python get-pip.py.
But manual download by visiting https://bootstrap.pypa.io/ and downloading get-pip.py worked fine for me.
I've found that creating a virtualenv for Python 2.7 installs also pip
$ virtualenv -p python2 venv
$ . venv/bin/activate
$ pip --version
pip 20.0.2 from /home/.../venv/lib/python2.7/site-packages/pip (python 2.7)
Put python3 instead ${PYPKG} in line 202, and instead python-pip in line 596 in file install.sh of mininet-wifi.
To solve the problem of:
E: Unable to locate package python-pip
Run the package update index cmd:
sudo apt update
If not that, then python-pip-whl (which is also a package installer) is available in the universe repository, make sure that's installed and then run:
sudo apt-get install python-pip-whl
I specifically needed a Dockerfile file and this is what I have put inside so that it works without errors, I hope it will help someone.
This is Dockerfile file:
FROM ubuntu:latest
RUN apt-get update -y
RUN apt-get install -y python3 python3-dev
WORKDIR /app
COPY . /app
ENV DEBUG=True
EXPOSE 80
Related
I'm trying to install Python 3.6 or above with pip in an docker container that runs Ubuntu. I've tried quite a few things with no success
FROM ubuntu:18.04
RUN apt update
RUN apt install software-properties-common -y
RUN add-apt-repository ppa:deadsnakes/ppa
RUN ln -s /usr/bin/pip3 /usr/bin/pip
RUN ln -s /usr/bin/python3.8 /usr/bin/python
RUN apt install python3.8 -y
RUN apt install pip
RUN pip install auto-sklearn
RUN pip install pandas
ADD test.py /
CMD [ "python", "./test.py" ]
This returns "Unable to locate package pip." I tried removing "apt install pip" incase Python 3.8 comes with it, but it gives me the error: "pip: not found."
FROM ubuntu:18.04
RUN apt install software-properties-common -y
RUN add-apt-repository ppa:deadsnakes/ppa
RUN apt-get update
RUN install python3-pip
RUN pip install auto-sklearn
RUN pip install pandas
ADD test.py /
CMD [ "python", "./test.py" ]
This installs pip, but auto-sklearn requires Python version 3.6 or higher and this installs a lower version. Auto-sklearn requires Linux as well which is why I'm using "FROM ubuntu" rather than "FROM python" cause "FROM python" seems to build a container on whatever native OS is running on the computer building the container, which for me is Windows.
I see two consecutive issues here, so let's address them accordingly:
Issue 1: missing pip in the Ubuntu image
This returns "Unable to locate package pip." I tried removing "apt install pip" incase Python 3.8 comes with it, but it gives me the error: "pip: not found."
That's right. If you inspect the contents of the /usr/bin directory of the pulled image, you will notice that there is no pip or pip3 there. So RUN ln -s /usr/bin/pip3 /usr/bin/pip line in your Dockerfile does nothing. Even when python3.6 gets installed in the container (after calling apt install software-properties-common -y), you do not get pip with it.
Solution: install pip
The following commands can be used to install python3.6 binary and the corresponding pip:
RUN apt-get update
RUN apt-get install python3-pip
This installs both python3.6 and pip3 in the /usr/bin directory of your ubuntu:18/04 container.
Issue 2: auto-sklearn requires python >= 3.7
Even if you manage to get both python3.6 and pip for python3.6, installation of auto-sklearn might still fail with the following error:
RuntimeError: Python version >= 3.7 required.
This is because some of the dependencies (e.g. ConfigSpace package) require python version >= 3.7.
Solution:
This answer explains how to install pip for python3.8 on Ubuntu: https://stackoverflow.com/a/63207387/15043192
You can follow it or get both pip and python3.8 installed using the following sequence:
Install python3.8:
RUN add-apt-repository ppa:deadsnakes/ppa
RUN apt update
RUN apt install python3.8
Install python3.6 and pip for python3.6
RUN apt install python3-pip
Now if you execute python3.6 -m pip --version in the container, you would get something like (the version of pip might be different):
pip 9.0.1 from /usr/lib/python3/dist-packages (python 3.6)
Install pip for python3.8
Note: here we use previously installed pip for python3.6 to install pip for python3.8. Do not ask me why :-)
RUN python3.8 -m pip install pip --upgrade
Install auto-sklearn
RUN python3.8 -m pip install auto-sklearn
Note: the command above might also install pandas package among other dependencies of auto-sklearn.
Create a symbolic link to python3.8
This would change the default
RUN ln -s /usr/bin/python3.8 /usr/bin/python
Now if you execute python -m pip --version in the container, you would get something like (the version of pip might be different):
pip 21.2.4 from /usr/local/lib/python3.8/dist-packages/pip (python 3.8)
Grand finale:
In the end, your Dockerfile should look like this:
FROM ubuntu:18.04
RUN add-apt-repository ppa:deadsnakes/ppa
RUN apt update
RUN apt install python3.8
RUN apt install python3-pip
RUN python3.8 -m pip install auto-sklearn
RUN python3.8 -m pip install pandas
RUN ln -s /usr/bin/python3.8 /usr/bin/python
ADD test.py /
CMD [ "python", "./test.py" ]
NB
To avoid messing around with different versions of python and pip, you might want to have a look into virtual environments.
I'm trying to install pip for Python 3.8 on an Ubuntu 18.04 LTS.
I know this has been asked way too many times. But those questions do not concern keeping Ubuntu's defaults specifically. And the answers on those questions either don't work or go on to suggest something so drastic that it would break the system - e.g. change default python3 version from 3.6 to 3.8. You SHOULDN'T!
So far, I've been able to install python3.8 successfully using the PPA - ppa:deadsnakes/ppa:
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.8
Changed python command from python2 to python3.8 using update-alternatives:
update-alternatives --remove python /usr/bin/python2
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.8 10
Now, I get python 3.8 when I run python --version:
Python 3.8.5
The problem is, I still can't install pip for Python 3.8.
If I try to install python3-pip, it installs pip for Python 3.6 since python3 still points to python3.6.9, and I intend to keep it that way.
Try installing python-pip, and it will install pip for Python 2.7.
Also there's no such package as python3.8-pip, so I can't install it like:
sudo apt install python3.8-pip
Output:
E: Unable to locate package python3.8-pip
E: Couldn't find any package by glob 'python3.8-pip'
E: Couldn't find any package by regex 'python3.8-pip'
What can I do to install pip for Python 3.8 on an Ubuntu 18.04?
While we can use pip directly as a Python module (the recommended way):
python -m pip --version
This is how I installed it (so it can be called directly):
Firstly, make sure that command pip is available and it isn't being used by pip for Python 2.7
sudo apt remove python-pip
Now if you write pip in the Terminal, you'll get that nothing is installed there:
pip --version
Output:
Command 'pip' not found, but can be installed with:
sudo apt install python-pip
Install python3.8 and setup up correct version on python command using update-alternatives (as done in the question).
Make sure, you have python3-pip installed:
(This won't work without python3-pip. Although this will install pip 9.0.1 from python 3.6, we'll need it.)
sudo apt install python3-pip
This will install pip 9.0.1 as pip3:
pip3 --version
Output:
pip 9.0.1 from /usr/lib/python3/dist-packages (python 3.6)
Now, to install pip for Python 3.8, I used pip by calling it as a python module (ironic!):
python -m pip install pip
Output:
Collecting pip
Downloading https://files.pythonhosted.org/packages/36/74/38c2410d688ac7b48afa07d413674afc1f903c1c1f854de51dc8eb2367a5/pip-20.2-py2.py3-none-any.whl (1.5MB)
100% |████████████████████████████████| 1.5MB 288kB/s
Installing collected packages: pip
Successfully installed pip-20.2
It looks like, when I called pip (which was installed for Python 3.6, BTW) as a module of Python 3.8, and installed pip, it actually worked.
Now, make sure your ~/.local/bin directory is set in PATH environment variable:
Open ~/.bashrc using your favourite editor (if you're using zsh, replace .bashrc with .zshrc)
nano ~/.bashrc
And paste the following at the end of the file
# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/.local/bin" ] ; then
PATH="$HOME/.local/bin:$PATH"
fi
Finally, source your .bashrc (or restart the Terminal window):
source ~/.bashrc
Now if you try running pip directly it'll give you the correct version:
pip --version
Output:
pip 20.2 from /home/qumber/.local/lib/python3.8/site-packages/pip (python 3.8)
Sweet!
As suggested in official documentation you can try with get-pip.py.
wget https://bootstrap.pypa.io/get-pip.py
python3.8 get-pip.py
This will install pip as pip3.8
Another solution would be to install the pip that is in apt. sudo apt install python3-pip. The version of the pip that it installs is for all versions of Python not only for version 3.6 once installed you just need to update the pip with the command python3.8 -m pip install pip and he will be install the latest version of pip for Python.
I would not advise you to remove Python2 because it is an important module for the system you should just create a permanent "alias" in .bashrc for Python3 I did like this alias python="python3.8.
# install py3.8 and dependencies for the pip3 bootstrap script
add-apt-repository -y ppa:deadsnakes/ppa && \
apt install -y python3.8 python3.8-distutils
# download and run the pip3 bootstrap script
cd /tmp && wget https://bootstrap.pypa.io/get-pip.py && \
python3.8 /tmp/get-pip.py
# use pip py3.8 module to install python packages
python3.8 -m pip install numpy pandas
Install python v3.8 as python
RUN apt update --fix-missing && \
apt install python3.8 -y && \
update-alternatives --install /usr/bin/python python /usr/bin/python3.8 10
Install pip for python 3.8
RUN apt install python3-pip -y && \
python -m pip install --upgrade pip
I did this a couple days ago and I struggled a lot with it but I finally got it working, so I wrote up what I did as a blog post.
In the end I think I may have done mostly the same things as the above answer, but if you got lost following it, maybe my screenshots etc will help.
Here's the tl;dr of the process I did:
Uninstall python3-pip & python-pip using apt
Remove the old pip files from /usr/local/bin
Reinstall python3-pip using apt
Add $HOME/.local/bin to your $PATH (also restart your shell to make sure you did this right)
On ubuntu server
sudo apt install python -y
For more information check this blog here.
https://teckresolve.com/install-python-packages-using-pip/
I've installed Python 3.7 on my Ubuntu 18.04 machine. Following this instructions in case it's relevant:
Download : Python 3.7 from Python Website [1] ,on Desktop and manually
unzip it, on Desktop Installation : Open Terminal (ctrl +shift+T)
Go to the Extracted folder
$ cd ~/Desktop/Python-3.7.0
$ ./configure
$ make
$ sudo make install
Making Python 3.7 default Python :
$ sudo vim ~/.bashrc
press i
on the last and new line - Type
alias python= python3.7
press Esc
type - to save and exit vim
:wq
now type
$ source ~/.bashrc
From here: https://www.quora.com/How-can-I-upgrade-Python-3-6-to-3-7-in-Ubuntu-18-04
I've downloaded several modules through pip install module but when I try to import them, I get a ModuleNotFoundError: No module names 'xx'
So I did some research and apparently when used pip to install, it installed in the modules in previous version of Python.
Somewhere (probably a question in SO) I found a suggestion to install the module using python3.7 -m pip install module but then I get /usr/local/bin/python3.7: no module named pip.
Now I'm stuck, pip is installed, but apparently not for Python 3.7. I'm assuming that if I can install pip for Python 3.7, I can run the pip install command and get the modules I need.
If that is the case, how can I install pip for python 3.7, since it's already installed?
This is the best I have come up with:
I have installed python 3.7 successfully and I can install modules using pip (or pip3) but those modules are installed in Python 3.6 (Comes with ubuntu). Therefore I can't import those modules in python 3.7 (get a module not found)
Python 3.7 doesn't recognize pip/pip3, so I can't install through pip/pip3
I need python 3.7
In general, don't do this:
pip install package
because, as you have correctly noticed, it's not clear what Python version you're installing package for.
Instead, if you want to install package for Python 3.7, do this:
python3.7 -m pip install package
Replace package with the name of whatever you're trying to install.
Took me a surprisingly long time to figure it out, too. The docs about it are here.
Your other option is to set up a virtual environment. Once your virtual environment is active, executable names like python and pip will point to the correct ones.
A quick add-on to mpenkov's answer above (didn't want this to get lost in the comments)
For me, I had to install pip for 3.6 first
sudo apt install python3-pip
now you can install python 3.7
sudo apt install python3.7
and then I could install pip for 3.7
python3.7 -m pip install pip
and as a bonus, to install other modules just preface with
python3.7 -m pip install <module>
EDIT 1 (12/2019):
I know this is obvious for most. but if you want python 3.8, just substitute python3.8 in place of python3.7
EDIT 2 (5/2020):
For those that are able to upgrade, Python 3.8 is available out-of-the-box for Ubuntu 20.04 which was released a few weeks ago.
This works for me.
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
Then this command with sudo:
python3.7 get-pip.py
Based on this instruction.
I used apt-get to install python3.7 in ubuntu18.04. The installations are as follows.
install python3.7
sudo apt-get install python3.7
install pip3. It should be noted that this may install pip3 for python3.6.
sudo apt-get install python3-pip
change the default of python3 for python3.7. This is where the magic is, which will make the pip3 refer to python3.7.
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 1
Hope it works for you.
To install all currently supported python versions (python 3.6 is already pre-installed) including pip for Ubuntu 18.04 do the following:
To install python3.5 and python3.7, use the deadsnakes ppa:
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.5
sudo apt-get install python3.7
Install python2.7 via distribution packages:
sudo apt install python-minimal # on Ubuntu 18.04 python-minimal maps to python2.7
To install pip use:
sudo apt install python-pip # on Ubuntu 18.04 this refers to pip for python2.7
sudo apt install python3-pip # on Ubuntu 18.04 this refers to pip for python3.6
python3.5 -m pip install pip # this will install pip only for the current user
python3.7 -m pip install pip
I used it for setting up a CI-chain for a python project with tox and Jenkins.
Combining the answers from #mpenkon and #dangel, this is what worked for me:
sudo apt install python3-pip
python3.7 -m pip install pip
Step #1 is required (assuming you don't already have pip for python3) for step #2 to work. It uses pip for Python3.6 to install pip for Python 3.7 apparently.
When i use apt install python3-pip, i get a lot of packages need install, but i donot need them. So, i DO like this:
apt update
apt-get install python3-setuptools
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python3 get-pip.py
rm -f get-pip.py
The following steps can be used:
sudo apt-get -y update
---------
sudo apt-get install python3.7
--------------
python3.7
-------------
curl -O https://bootstrap.pypa.io/get-pip.py
-----------------
sudo apt install python3-pip
-----------------
sudo apt install python3.7-venv
-----------------
python3.7 -m venv /home/ubuntu/app
-------------
cd app
----------------
source bin/activate
Install python pre-requisites
sudo apt update
sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev wget
Install python 3.7 (from ppa repository)
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.7
Install pip3.7
sudo apt install python3-pip
python3.7 -m pip install pip
Create python and pip alternatives
sudo update-alternatives --install /usr/local/bin/python python /usr/bin/python3.7 10
sudo update-alternatives --install /usr/local/bin/pip pip /home/your_username/.local/bin/pip3.7 10
Make changes
source ~/.bashrc
python --version
pip --version
For those who intend to use venv:
If you don't already have pip for Python 3:
sudo apt install python3-pip
Install venv package:
sudo apt install python3.7-venv
Create virtual environment (which will be bootstrapped with pip by default):
python3.7 -m venv /path/to/new/virtual/environment
To activate the virtual environment, source the appropriate script for the current shell, from the bin directory of the virtual environment. The appropriate scripts for the different shells are:
bash/zsh – activate
fish – activate.fish
csh/tcsh – activate.csh
For example, if using bash:
source /path/to/new/virtual/environment/bin/activate
Optionally, to update pip for the virtual environment (while it is activated):
pip install --upgrade pip
When you want to deactivate the virtual environment:
deactivate
I installed pip3 using
python3.7 -m pip install pip
But upon using pip3 to install other dependencies, it was using python3.6.
You can check the by typing pip3 --version
Hence, I used pip3 like this (stated in one of the above answers):
python3.7 -m pip install <module>
or use it like this:
python3.7 -m pip install -r requirements.txt
I made a bash alias for later use in ~/.bashrc file as alias pip3='python3.7 -m pip'. If you use alias, don't forget to source ~/.bashrc after making the changes and saving it.
How about simply
add-apt-repository ppa:deadsnakes/ppa
apt-get update
apt-get install python3.7-dev
alias pip3.7="python3.7 -m pip"
Now you have the command
pip3.7
separately from pip3.
curl https://bootstrap.pypa.io/get-pip.py | sudo python3.7
if all else fails.
pip3 not pip. You can create an alias like you did with python3 if you like.
I upgraded from ubuntu 14.04 to ubuntu 16.04 a few days ago.
When I try to create a virtual env by using
pyvenv .venv
or
python3 -m venv .venv
There is an error:
The virtual environment was not created successfully because ensurepip is not
available. On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.
apt-get install python3-venv
You may need to use sudo with that command. After installing the python3-venv
package, recreate your virtual environment.
Failing command: ['/home/user/.venv/bin/python3.5', '-Im', 'ensurepip', '--upgrade', '--default-pip']
I tried running both
sudo apt-get install python3-venv
and
sudo apt-get install python3.5-venv
but it did not solve my problem.
try installing python3.6-venv:
sudo apt-get install python3.6-venv
It seems that it was a locale problem. Solved by executing:
export LC_ALL="en_US.UTF-8"
export LC_CTYPE="en_US.UTF-8"
sudo dpkg-reconfigure locales
found on this thread Python locale error: unsupported locale setting
Under Windows Linux Subsystem and Ubuntu 18.04, this was caused by my not having upgraded recently.
I ran:
sudo apt update
sudo apt upgrade
Then sudo apt install python3-venv worked.
Note that I had also tried the UTF-8 solution beforehand (I made it part of my .bashrc), so that could have been a contributing factor.
One of the other answers fixed it for me last time, but with Python 3.7 I had to do:
apt install python3-pip python3-setuptools python3.7-venv
Followed by
python3.7 -m venv /path/to/venv
Resolved similar problems on Ubuntu18 when came upon this answer. It is similar to the one that worked for #Niko Rikken, except it doesn't really need any new PPA's and "python3.8-distutils" package. I was installing new python3.8 environment with venv and I already had "python3-venv" installed and up to date, so my solution was to install only "python3.8-venv":
% sudo apt-get install python3.8-venv
And that got this lines working:
% python3.8 -m venv ~/envs/new_env
% source ~/envs/new_env/bin/activate
In my case the next steps worked:
Ubuntu 18.04.4 LTS
$ sudo apt-get install python3-venv python3.7-venv
$ python3.7 -m venv [your_path_to_virtual_env_here]
In case this helps anyone down the line, I was getting the same error on Ubuntu 18.04. Setting the locales didn't work and trying to install python3-venv gave the error:
$ sudo apt-get install python3-venv
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
python3-venv : Depends: python3.6-venv (>= 3.6.5-2~) but it is not going to be installed
Depends: python3 (= 3.6.5-3) but 3.6.7-1~18.04 is to be installed
E: Unable to correct problems, you have held broken packages.
And it looks like the apt repository had two versions of python:
$ apt list python3 -a
python3/bionic-updates,now 3.6.7-1~18.04 amd64 [installed]
python3/bionic 3.6.5-3 amd64
I tried to install Python3.6.5-3 but apt wanted to uninstall every dependency. I was able to solve the problem by installing Python3.7 and creating the venv with that:
$ sudo apt-get install python3.7 python3.7-venv
$ python3.7 -m venv my_venv
I encountered this problem on Ubuntu 18.04 for the recent release of Python-3.8. My solution was to add the Deadsnakes PPA which supplies the required python3.8-distutils package. The python3.8-venv package is already in the repository. Thanks to this blogpost:
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.8
sudo apt install python3.8-distutils
sudo apt install python3.8-venv
Note: This is only a temporary solution. In the near future the required python3.8-distutils package will probably be available in the default Ubuntu repository.
Edit:
For Ubuntu 20.04 LTS the python3-distutils package is based on Python 3.8. As of yet there is no Python 3.8 package distutils package available for Ubuntu 18.04 LTS.
As mentioned in other comments on this thread, distutils might not be required. It was for my use-case, but please consider that solution before adding additional PPA's.
First, make a directory :
mkdir testing
Then, moved to this directory named testing :
cd testing
When you type following command in this directory:
python3 -m venv env
You got error like :
The virtual environment was not created successfully because ensurepip is not
available. On Debian/Ubuntu systems, you need to install the python3-venv
package using the following command.
apt install python3.8-venv
Type the following command but before that keep an eye on the version of python you installed on the machine; in my case its python3.8
sudo apt install python3.8-venv
Now, we can create a virtual environment and store its tools in the "bhandari" folder .
python3 -m venv bhandari
Note: you can named this "bhandari" folder; anyname you like( Standard practice is to name it "env" ...)
Now to activate your virtual environment, from the directory of your folder, type the following command this will activate our virtual environment in the “bhandari” folder
source bhandari/bin/activate
If you have successfully activated your virtual environment, you should see the (bhandari) word indicating that we are working in a virtual environment.
After this, we can install anything that will be isolated from the rest of the system....
I was faced with the same problem and I am searching for a solution. It is about the problem:
ensurepip is disabled in Debian/Ubuntu for the system python.
And this my solution:
python3 -m venv myvenv --without-pip --system-site-packages
Try the following commands:
sudo apt install python-virtualenv
virtualenv --python=python3.6 myenv
These commands might work for you.
If you get any error like E: Unable to locate package python3-venv
Then try the following commands:
sudo apt install python3.6-venv
Python updated or Default python changed and venv already installed
the venv installed on your system is installed by your previous python version(let say python3.6). that's why venv is not working with current python version(lets say 3.8).
so first check your default python or python3 version,( suppose ur current version is python3.8).
reinstall virtual environment by mentioning current python version(3.8) as follow
sudo apt-get install python3.xx-venv >> replace xx with your current/default python version
if this helps you plz upvote, I'm new on this platform.
Try : python3.* -m venv myvenv -
And don't forget to replace * with your specific version of python
I had to mention the specific version of python and replace python3.10 with you version
$ sudo apt-get update -y && sudo apt-get upgrade -y
$ sudo apt-get install python3.10-venv
Creating a virtual environment
$ python3.10 -m venv --system-site-packages Project_Name
If your intention was to get python3.8 incl. pip and venv on Ubuntu 18.04:
sudo apt install python3.8 python3.8-venv python3-pip # there is no python3.8-pip package
python3.8 -m venv venv
source venv/bin/activate
python --version # -> python 3.8.0
pip --version # -> pip 9.0.1 from /home/user/venv/lib/python3.8/site-packages (python 3.8)
Try installing python3-distutils as well.
Altogether,
for python 3.8, the following worked for me.
$ apt-get install python3.8 python3.8-venv python3.8-distutils python3.8-dev
I just ran across this issue on several Debian/Ubuntu systems. Same error as above.
Findings
I tried to create a venv manually with:
python -m venv venvdir
This failed in the same way as others have mentioned. But it did create the shell of the venv. So I tried running ensurepip:
venvdir/bin/python -m ensurepip
Traceback (most recent call last):
File "/usr/lib/python3.9/runpy.py", line 197, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/usr/lib/python3.9/ensurepip/__main__.py", line 5, in <module>
sys.exit(ensurepip._main())
File "/usr/lib/python3.9/ensurepip/__init__.py", line 266, in _main
return _bootstrap(
File "/usr/lib/python3.9/ensurepip/__init__.py", line 166, in _bootstrap
copy_wheels(dependencies, venv_wheel_dir, sys.path)
File "/usr/lib/python3.9/ensurepip/__init__.py", line 144, in copy_wheels
assert len(wheel_names) == 1, wheel_names
AssertionError: ['/usr/share/python-wheels/pyparsing-2.2.0-py2.py3-none-any.whl', '/usr/s
hare/python-wheels/pyparsing-2.4.7-py2.py3-none-any.whl']
This seemed odd. A quick look into /usr/share/python-wheels/ revealed - indeed - multiple versions of the same wheel as the error suggests. I have no clue why ensurepip is also ensuring that it only finds one wheel file, go figure.
Solution
A check of dpkg -S /usr/share/python-wheels indicated that the python-pip-whl package is the source of those files. This appears to be true for both Ubuntu and Debian.
So, I did:
cd /usr/share
sudo mv python-wheels python-wheels.old
sudo apt reinstall python-pip-whl
And it worked - no more errors. There are no longer duplicates in /usr/share/python-wheels
Absolutely no clue how there were duplicates or why ensurepip is so sensitive to duplicates there... Probably a package upgrade gone wrong somewhere.
I had the same problem - the python env has 2 versions for 2.7 and 3.6.
All you need to do is:
Install the latest version of pip by installing pyenv installer
Make sure you follow the steps of installing pyenv found here
Good Luck!
I had the same problem for an existing project when executing python3 -m venv venv. I had just updated my Ubuntu and Python versions. After removing the already existing venv folder the issue was solved. (I have also tried the UTF-8 solution.)
My problem were related to permissions and ownership.
I was logged in with a different user as the owner of the current directory, which led to this error.
After reviewing and fixing all permissions I was able to install the venv regularl
This worked for me...
Firstly, I ran
sudo apt-get update
Then
sudo apt-get install -y python3-venv zip
Ran into the same issue recently. None of the solutions mentioned above worked for me. I eventually get it to working by installing pip3.
apt-get install python3-pip
# then run
python3.8 -m venv env
If you came across this issue while trying to run python -m build to build a python package, this means there probabaly is a syntax issue in your setup.cfg or setup.py file that causes an error creating the temporary venv required for installing dependencies.
Using pip wheels . will give you a less misleading error message.
For Linux, it is not installed by default you have to install venv
// at first check python version
python --version
// install
sudo apt update
sudo apt install python3.8-venv
sudo apt install python3.8-distutils
// create new env
python3 -m venv project-name
source project-name/bin/activate
All of these suggestions didn't help me.
$ apt list python3 -a
python3/now 3.6.7-1~18.04 amd64 [installed,local]
python3/bionic 3.6.5-3 amd64
So I did: sudo apt-get install python3/bionic
Now I have python 3.6.5 and apt-list showed a better list:
$ apt list python3 -a
python3/bionic 3.6.5-3 amd64
With sudo apt-get install python3-venv/bionic I could install pythno3-venv and everything worked.
In my case, running sudo apt-get install python3.8-venv succeeds but it shows the same error when running python3 -m venv .venv.
Finally, this command works out without changing locale.
python3.8 -c 'import venv; venv.create(".venv", with_pip=True)'
Here is my answer for Ubuntu 14.04. I was able to make venv and pip work with various Python versions. Details:
3.4: Ubuntu 14.04 has Python 3.4 (as package python3.4 etc.). It works:
$ sudo apt-get install python3.4 python3.4-dev python3.4-venv gcc libc6-dev
$ mkdir /tmp/try3.4
$ python3.4 -m venv /tmp/try3.4
$ . /tmp/try/bin/activate
(try3.4) $ pip install print-hello-world
...
(try3.4) $ print-hello-world
Hello World!
If python3.4-venv is removed from the apt-get install command above, then python3.4 -m venv displays the same error message as in the question. However, the error message mentions apt-get install python3-venv to solve it, but that doesn't work, there is no such package. (The correct package name is python3.4-venv.)
Please note that Python 3.4 is fairly old, and some Python packages available in PyPI (via pip) don't work with it.
3.5: It can be installed from the deadsnakes repository. It works:
$ sudo add-apt-repository ppa:deadsnakes/ppa
$ sudo apt-get update
$ sudo apt-get install python3.5 python3.5-dev python3.5-venv gcc libc6-dev
$ mkdir /tmp/try3.5
$ python3.5 -m venv /tmp/try
$ . /tmp/try/bin/activate
(try3.5) $ pip install print-hello-world
...
(try3.5) $ print-hello-world
Hello World!
3.6: Ditto, it can be installed from the deadsnakes repository. It works:
$ sudo add-apt-repository ppa:deadsnakes/ppa
$ sudo apt-get update
$ sudo apt-get install python3.6 python3.6-dev python3.6-venv gcc libc6-dev
$ mkdir /tmp/try3.6
$ python3.6 -m venv /tmp/try3.6
$ . /tmp/try3.6/bin/activate
(try3.6) $ pip install print-hello-world
...
(try3.6) $ print-hello-world
Hello World!
3.7: It doesn't work, because pip install fails with import _ssl, and python3.7 in the deadsnakes repo doesn't have that module, because Ubuntu 14.04 ships with on old version of OpenSSL which Python 3.7 doesn't support. See more details in this bug.
3.8--: No Ubuntu 14.04 package for these Python versions in the Ubuntu or deadsnakes repositories.
In my case, the command failed because I was still in a virtual env but did not notice it very quickly.
If it is the case, try calling deactivate.
I do not have sudo rights and I have to use python3.5:
Install virtualenv: pip3 virtualenv
Create virtualenv without pip: python3 -m venv --without-pip <path>
Downloaded the proper pip bootstrap: https://bootstrap.pypa.io/pip/3.5/get-pip.py
Run: <path>/bin/python3 get-pip.py
I did 'source <path>/bin/activate' and I got a working environment.
The solution for installing python3-venv is accurate since debian/ubuntu split the python distribution across multiple packages, so you do not actually have a full python install. If you really do not want to install this apt package, here is an alternative
python3 -m pip install virtualenv
virtualenv .venv
This will create fully functioning venv.
I run
python --version
and get
Python 2.7.3
I run
pip --version
and get
pip 1.5 from /usr/local/lib/python3.2/dist-packages/pip-1.5-py3.2.egg (python 3.2)
I installed pip using apt-get. How to I get the Python 2 version of pip?
I've reinstalled python and python-pip several times with apt-get. I'm also curious why these would install different Python versions.
To install pip for Python2 on Ubuntu, this worked for me
sudo apt update
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py
sudo python2 get-pip.py
It's based on DareDevil7's answer but notice the url is different.
If there are both python2.7 and python3 in you ubuntu system,run this
sudo apt install python-pip
There will be pip for python3 ,pip2 for python2
I would suggest that you use pyenv to manage multiple versions of Python, because it can often get problematic. Right now the solution to the problem would depend on the configuration you have for pip and python in your bash.
One thing you can do is download the easy_install script, and use python 3 to run it and install pip for python 3 alone.
If you really want to install pip globally for your system use the get-pip.py script with the wanted python binary http://www.pip-installer.org/en/latest/installing.html#install-or-upgrade-pip
python2.7 get-pip.py
But you should consider using virtualenv / buildout to get an isolated environment
Download the tar.gz of pip from https://pypi.python.org/pypi/pip#downloads.
Unzip or Untar, Then from its untar directory install for any specific version of python using
python2.7 setup.py install
or
python3.3 setup.py install
Run the following Commands:
sudo add-apt-repository universe
sudo apt update
curl https://bootstrap.pypa.io/get-pip.py --output get-pip.py
sudo python get-pip.py
run this
python2.7 -m ensurepip --upgrade
Its a not a good idea to install pip for python2 system wide. I guess, you need to run a project with python2. The best solution is vritualenv.
I am making an assumption that in your installation which python2 returns /usr/bin/python2.7
1. sudo apt install python2-pip-whl
2. sudo apt install python2-setuptools-whl
3 virtualenv -p /usr/bin/python2.7 YOURPROJECT
4. source YOURPROJECT/bin/activate
The last command will now activate the virtual environment and in this environment, your python is python2.7 and pip is installed for python2.7 as well.
You can deactivate your virtual environment using deactivate.