I installed python 3.7 on my MacBook using the anaconda distribution. I installed some packages too, and was doing a python course. In between I got a message on my terminal saying zsh is your shell and please run (...some command...) to change the shell. I did that.
Today when trying to install pylint using pip I got an error as below.
anilkhare#Anils-MacBook-Air ~ % pip install pylint
zsh: command not found: pip
I tried to install pip using
'''
sudo easy_install pip
'''
After that I checked the pip version with
'''
anilkhare#Anils-MacBook-Air ~ % pip -V
pip 20.0.2 from /Library/Python/2.7/site-packages/pip-20.0.2-py2.7.egg/pip (python 2.7)
'''
Then I installed pylint using
'''
pip install pylint
'''
But after successful installation of pylint, when I try to run it for .py file, I get a message
'''
zsh:command not found : pylint
'''
Don't install with pip if can use conda instead. If conda isn't recognized too, navigate to your ../Anaconda/condabin folder and run
conda init --all
Then restart your shell and
> conda activate
(base) conda install pylint
If you have Python installed you can do the following
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py
It will install pip and you will be able to use it going forward.
This worked for me on my mac. Thanks Vkozyrev. curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py
Related
I'm trying to use pip to install some packages that I need, but I came across a problem. My default version of python is python3.10 but when I try using pip to install packages for it, it installes them for python3.8
This is the output of pip --version:
pip 22.1.2 from /usr/local/lib/python3.8/dist-packages/pip (python 3.8)
Is there a way to change this so that I can install packages for python 3.10?
When I try to run python3 -m pip --version I get:
/usr/local/bin/python3: No module named pip
Download get-pip.py file from any of the following options:
Download it manually from here.
Download it from terminal/cmd using: wget https://bootstrap.pypa.io/get-pip.py
Download it from terminal/cmd using: curl https://bootstrap.pypa.io/get-pip.py
Then run the command python3 get-pip.py, it will install pip in the python version invoked by python3(which is 3.10 as you have stated).
Install packages using command python3 -m pip install package_name
Since you've said you can call the desired python version with the command python3, it's best to call pip via
python3 -m pip
This ensures you're installing packages to the correct version (Dealing with multiple Python versions and PIP?).
To install pip if it's missing, you can use ensurepip (as per this answer)
python3 -m ensurepip
It's probably worth mentioning venv which lets you create a local python environment to keep your packages separate for different projects.
I'm new to macos and trying to get a dev environment going...I need pip but getting an error message with just pip.
Getting error pkg_resources.DistributionNotFound: The 'pip==20.0.2' distribution was not found and is required by the application
Python3 was installed with macos and I tried to install 2.x version and made it the global default. I think that's why I'm getting the above error.
I uninstalled the 2.x python using pyenv.
How can I remove pip (i've got pip, pip3 and pip 3.8) and start over.
Thanks.
Can you try removing pip using this in the directory where pip pacakge is installed?
sudo rm -r pip <Version Number>
You can get the directory where pip is installed with this: which pip and then cd into that path and run the above command.
I have my deployment system running CentOS 6.
It has by default python 2.6.6 installed. So, "which python" gives me /usr/bin/python (which is 2.6.6)
I later installed python3.5, which is invoked as python3 ("which python3" gives me /usr/local/bin/python3)
Using pip, I need to install a few packages that are specific to python3. So I did pip install using:-
"sudo yum install python-pip"
So "which pip" is /usr/bin/pip.
Now whenever I do any "pip install", it just installs it for 2.6.6. :-(
It is clear that pip installation got tied to python 2.6.6 and invoking pip later, only installs packages for 2.6.6.
How can I get around this issue?
If pip isn’t already installed, then first try to bootstrap it from the standard library:
$ python3.5 -m ensurepip --default-pip
If that still doesn’t allow you to run pip:
Securely Download get-pip.py.
Run sudo python3.5 get-pip.py.
Now you can use pip3 to install packages for python3.5. For example, try:
$ sudo pip3 install ipython # isntall IPython for python3.5
Alternatively, as long as the corresponding pip has been installed, you can use pip for a specific Python version like this:
$ python3.5 -m pip install SomePackage # specifically Python 3.5
References:
Ensure you can run pip from the command line
work with multiple versions of Python installed in parallel?
I have python 3.6 and 3.8 on my Ubuntu 18.04 WSL machine. Running
sudo apt-get install python3-pip
pip3 install my_package_name
kept installing packages into Python 3.6 dist directories. The only way that I could install packages for Python 3.8 was:
python3.8 -m pip install my_package_name
That installed appropriate package into the Python 3.8 dist package directory so that when I ran my code with python3.8, the required package was available.
Example of how to install pip for a specific python version
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
/opt/local/bin/python2.7 get-pip.py
Script is from official doc: https://pip.pypa.io/en/stable/installing/
On Ubuntu 18.04.1 LTS I wanted to install pip for my second python version (python3) and the following command did the trick for me:
$ sudo apt install python3-pip
I am trying to download pip onto my mac by following the instructions on the pip installation guide and I am coming up with this error after running the following command
$python get-pip.py
/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/
MacOS/Python: can't open file 'get-pip.py': [Errno 2] No such file or directory
This is happening after I download the 'get-pip.py' doc as the instructions suggest. Do I need to put this file in a certain location before I continue? I am relatively new to downloading programs through the terminal.
Thanks for the help!
It is recommended (highly) that you NOT use the version of Python that ships with your Mac. Instead use HomeBrew and install a "custom" version of Python (usually the latest). Then proceed to use virtualenv and optionally virtualenvwrapper
Prerequisites:
First, install Xcode from the App Store (it's FREE).
Install HomeBrew:
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
Install Python:
brew install python
This will install pip for you as well in /usr/local/bin/.
Install virtualenv:
pip install virtualenv
virtualenv Basic Usage:
virtualenv /path/to/my/env
cd /path/to/my/env
source ./bin/activate
# hack on your python project
deactivate # to go back to your normal shell
Please follow instructions for virtualenv for more details.
virtualenvwrapper is also really convenient and worthwhile learning.
Update :
More explanation at #dval 's comment
$ curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
and then execute
$ python get-pip.py
None of the above solutions worked for me, so I decided to straight out clean install Python 3.6 from the downloads page at python.org.
After you have completed the Python installer, go into Terminal and type in:
curl -O https://bootstrap.pypa.io/get-pip.py
Wait for the download to complete and then type in:
python3 get-pip.py --user
Then for your pip commands you will use 'pip3'. For example:
pip3 install awsebcli --upgrade --user
After python and pip have been installed they should be in your user Library. So update your PATH in terminal like so:
export PATH=~/Library/Python/3.6/bin:$PATH
I have a bash_profile shell so I also ran the following command in terminal to load script into my current session:
source ~/.bash_profile
After this, verify that your pip installed component was successful.
For example:
eb --version
See AWS for the above reference.
Curl did not work for me. I had to use "wget".
$ wget https://raw.github.com/pypa/pip/master/contrib/get-pip.py
and then execute
$ python get-pip.py
OS X (Mavericks) has Python 2.7 stock installed. But I do all my own personal Python stuff with 3.3. I just flushed my 3.3.2 install and installed the new 3.3.3. So I need to install pyserial again. I can do it the way I've done it before, which is:
Download pyserial from pypi
untar pyserial.tgz
cd pyserial
python3 setup.py install
But I'd like to do like the cool kids do, and just do something like pip3 install pyserial. But it's not clear how I get to that point. And just that point. Not interested (unless I have to be) in virtualenv yet.
UPDATE: This is no longer necessary as of Python3.4. pip3 is installed as part of the general Python3 installation.
I ended up posting this same question on the python mailing list, and got the following answer:
# download and install setuptools
curl -O https://bootstrap.pypa.io/ez_setup.py
python3 ez_setup.py
# download and install pip
curl -O https://bootstrap.pypa.io/get-pip.py
python3 get-pip.py
Which solved my question perfectly. After adding the following for my own:
cd /usr/local/bin
ln -s ../../../Library/Frameworks/Python.framework/Versions/3.3/bin/pip pip
So that I could run pip directly, I was able to:
# use pip to install
pip install pyserial
or:
# Don't want it?
pip uninstall pyserial
I had to go through this process myself and chose a different way that I think is better in the long run.
I installed homebrew
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
then:
brew doctor
The last step gives you some warnings and errors that you have to resolve. One of those will be to download and install the Mac OS X command-line tools.
then:
brew install python3
This gave me python3 and pip3 in my path.
pieter$ which pip3 python3
/usr/local/bin/pip3
/usr/local/bin/python3
Install Python3 on mac
1. brew install python3
2. curl https://bootstrap.pypa.io/get-pip.py | python3
3. python3
Use pip3 to install modules
1. pip3 install ipython
2. python3 -m IPython
:)
Here is my simple solution:
If you have python2 and python3 both installed in your system, the pip upgrade will point to python2 by default. Hence, we must specify the version of python(python3) and use the below command:
python3 -m pip install --upgrade pip
This command will uninstall the previously installed pip and install the new version- upgrading your pip.
This will save memory and declutter your system.
Image - How the upgrading of pip in Python3 works on MacOS
Plus:
when you install requests with python3, the command is:
pip3 install requests
not
pip install requests
brew install python3
create alias in your shell profile
eg. alias pip3="python3 -m pip" in my .zshrc
➜ ~ pip3 --version
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)
To use Python EasyInstall (which is what I think you're wanting to use), is super easy!
sudo easy_install pip
so then with pip to install Pyserial you would do:
pip install pyserial
On Mac OS X Mojave python stands for python of version 2.7 and python3 for python of version 3. The same is pip and pip3. So, to upgrade pip for python 3 do this:
~$ sudo pip3 install --upgrade pip
Also, it's worth to mention that Max OSX/macOS users can just use Homebrew to install pip3.
$> brew update
$> brew install python3
$> pip3 --version
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)
On MacOS 10.12
download pip: pip as get-pip.py
download python3: python3
install python3
open terminal: python3 get-pip.py
pip3 is available
pip is installed automatically with python2 using brew:
brew install python3
pip3 --version
simply run following on terminal if you don't have pip installed on your mac.
sudo easy_install pip
download python 3 here: python3
once you're done with these 2 steps, make sure to run the following to verify whether you've installed them successfully.
python3 --version
pip3 --version
For a fresh new Mac, you need to follow below steps:-
Make sure you have installed Xcode
sudo easy_install pip
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew doctor
brew doctor
brew install python3
And you are done, just type python3 on terminal and you will see python 3 installed.
I had the same problem with python3 and pip3. Decision: solving all conflicts with links and other stuff when do
brew doctor
After that
brew reinstall python3
I'm using MacOS 11.6 and in my case I did two things;
Install Python 3 from https://www.python.org/downloads/macos/ clicking on first link Download macOS 64-bit universal2 installer from Stable Releases list
Create alias for Python3 running the following command on Terminal echo "alias python='/usr/bin/python3'" > ~/.bash_profile
After that open a new terminal and type python -V to check if the version of python 3 is enabled by default for your use so now you can use the command pip3 to install your packages like pip3 install somepackage
use port to install it, it is better than brew, in case you have an old machine.
sudo port install py38-pip