bash：pip：找不到命令

I downloaded pip and ran python setup.py install and everything worked just fine. The very next step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error “bash: pip: command not found”.

This is on Mac OS X, which I’m new too, so I’m assuming there’s some kind of path setting that was not set correctly when I ran setup.py. How can I investigate further? What do I need to check to get a better idea of the exact cause of the problem?

EDIT: I also tried installing Python 2.7 for Mac in the hopes that the friendly install process would do any housekeeping like editing PATH and whatever else needs to happy for everything to work according to the tutorials, but this didn’t work. After installing is running ‘python’ still ran Python 2.6 and PATH was not updated.

Why not just do sudo easy_install pip or if this is for python 2.6 sudo easy_install-2.6 pip?

This installs pip using the default python package installer system and saves you the hassle of manual set-up all at the same time.

This will allow you to then run the pip command for python package installation as it will be installed with the system python. I also recommend once you have pip using the virtualenv package and pattern. :)

Use setuptools to install pip:

sudo easy_install pip

(I know the above part of my answer is redundant with klobucar’s, but I can’t add comments yet), so here’s an answer with a solution to sudo: easy_install: command not found on Debian/Ubuntu:

sudo apt-get install python-setuptools

Also, for python3, use easy_install3 and python3-setuptools.

First of all: try pip3 instead of pip. Example:

pip3 --version
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)

pip3 should be installed automatically together with Python3.x. The documentation hasn’t been updated, so simply replace pip by pip3 in the instructions, when installing Flask for example.

Now, if this doesn’t work, you might have to install pip separately.

Update: A more reliable modern way to access the right pip install for the right python install is to use the syntax python -m pip.

Original Answer

pip would install itself into the bin of your python installation location. It also should create a symlink to some more common location like /usr/local/bin/pip

You can either edit your ~/.profile and update your PATH to include /Library/Frameworks/Python.framework/Versions/2.6/bin, or you could create a symlink to it in a place that you know is in your path.

If you do: echo $PATH, you should see the paths currently being searched. If /usr/local/bin is in your PATH, you can do:

ln -s /Library/Frameworks/Python.framework/Versions/2.6/bin/pip /usr/local/bin

I would opt for adding the python bin to your $PATH variable.

Install Python latest version as given here

It has many download links like numpy and scipy

Then go to terminal and enter following command:-

sudo easy_install pip

For Python install packages check this

Requirements for Installing Packages This section describes the steps to follow before installing other Python packages.

Install pip, setuptools, and wheel If you have Python 2 >=2.7.9 or Python 3 >=3.4 installed from python.org, you will already have pip and setuptools, but will need to upgrade to the latest version:

On Linux or OS X:

pip install -U pip setuptools On Windows:

python -m pip install -U pip setuptools If you’re using a Python install on Linux that’s managed by the system package manager (e.g “yum”, “apt-get” etc…), and you want to use the system package manager to install or upgrade pip, then see Installing pip/setuptools/wheel with Linux Package Managers

Otherwise:

Securely Download get-pip.py 1

Run python get-pip.py. 2 This will install or upgrade pip. Additionally, it will install setuptools and wheel if they’re not installed already.

I have to admit to being absolutely new to python, which I only need for one thing: awscli. I encountered this problem having downloaded python 3.x.x – pip: command not found

Whilst following the instructions for downloading the AWS cli I changed

pip install awscli

to

pip3 install awscli

which ran the correct version.

I’ve made an alias on my machine to run python3 whilst typing python, which would normally run the system version 2.7. I’m not sure this is a good idea now. I think I’ll just type in the commands as they intended them to be

Check out How to Install Pip article article for more information.

As of 2019,

Download get-pip.py provided by https://pip.pypa.io using the following command:
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

Run get-pip.py using the following command:
sudo python get-pip.py

After you done installing, run this command to check if pip is installed.
pip --version

Remove get-pip.py file after installing pip.
rm get-pip.py

Installing using apt-get installs a system wide pip, not just a local one for your user. Try this command to get pip running on your system …

$ sudo apt-get install python-pip python-dev build-essential

Then pip will be installed without any issues and you will be able to use “sudo pip…”.

Most of the methods to install PIP are deprecated. Here is the latest (2019) solution. Please download get-pip script

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

Run the script

sudo python get-pip.py

I spent ages going through all the answers on this page but found the one that worked for me in the comments of the OP question by s-walsh

The answer is to use pip3:

$ pip3 install <name-of-install>

To solve:

1. Add this line to ~/.bash_profile

   export PATH=”/usr/local/bin:$PATH”

2. In a terminal window, run

   source ~/.bash_profile

It might be the root permission. I tried exit root login, use

sudo su -l root
pip <command>

that works for me

install Homebrew, open Terminal or your favorite OSX terminal emulator and run

$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

insert the Homebrew directory at the top of your PATH environment variable. You can do this by adding the following line at the bottom of your ~/.profile file

export PATH=/usr/local/bin:/usr/local/sbin:$PATH

Now, we can install Python 2.7:

$ brew install python

Get pip repository:

$ git clone https://github.com/pypa/pip

install pip:

$sudo easy_install pip

If you are running Python 3.5, run the following terminal command:

sudo pip3 install -U nltk

Any other pip commands in terminal would be similar:

pip3 install --upgrade pip
sudo pip3 install -U numpy ::

python install it by default but if not install you can install it manual use following cmd (for linux only )

for python3 :

sudo apt install python3-pip 

for python2

sudo apt install python-pip 

hope its help.

Avoiding sudo:

python <(curl https://bootstrap.pypa.io/get-pip.py) --user
echo 'export "PATH=$HOME/Library/Python/2.7/bin:$PATH"' >> ~/.bash_profile

From:

http://www.pip-command-not-found.com

CentOS 7 users can just use:

yum install python-pip

Also recommend using virtualenv if you’re using pip. It can be added in the same way:

yum install python-virtualenv

assuming you have internet see: https://pip.pypa.io/en/stable/installing/

basically run:

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

and

python get-pip.py

(Context: My OS is Amazon linux using AWS. It seems similar to RedHat but it’s stripped down a bit, it seems.)

Exit the shell, then open a new shell. The pip command now works.

That’s what solved the problem at this location.

You might want to know as well: The pip commands to install software then needed to be written like this example (jupyter for example) to work correctly on my system:

pip install jupyter –user

Specifically, note the lack of sudo, and the presence of –user

Would be real nice if pip docs had said anything about all this, but that would take typing in more characters I guess.

Not sure why this wasnt mentioned before, but the only thing that worked for me (on my NVIDIA Xavier) was:

sudo apt-get install python3-pip

(or sudo apt-get install python-pip for python 2)

Solved this by upgrading python 3 brew upgrade python: Now i can just do:

pip3 install  <package>  

==> python
Python has been installed as
  /usr/local/bin/python3

Unversioned symlinks `python`, `python-config`, `pip` etc. pointing to
`python3`, `python3-config`, `pip3` etc., respectively, have 

The problem seems that your python version and the library yoıu want to install is not matching versionally. Ex: If Django is Django3 and your python version is 2.7, you may get this error.

“After installing is running ‘python’ still ran Python 2.6 and PATH was not updated.”

1- Install latest version of Python 2- Change your PATH manually as python38 and compare them. 3- Try to reinstall.

I solved this problem as replacing PATH manually with the latest version of Python. As for Windows: ;C:\python38\Scripts

What I did to overcome this was sudo apt install python-pip.

It turned out my virtual machine did not have pip installed yet. It’s conceivable that other people could have this scenario too.

python-pip use obsolete version of pip (9.0) current post pip version is (18.0) after updating pip edit /usr/bin/pip replace this import:

from pip import main

to

from pip._internal import main

this working for pip 18.0 problem is pip change main function name repeat for /usr/bin/pip3 and /usr/bin/pip2

also view /usr/local/lib/[your_python_version]/dist-packages/pip/__main__.py It should be the same as /usr/bin/pip

Do following:

sudo apt update
sudo apt install python3-pip
source ~/.bashrc

This will surely install pip with all its dependencies. PS this is for python 3 if you want for python 2 replace python3 from the second command to python

sudo apt install python-pip

To overcome the issue “bash: pip: command not found” in Mac

Found two versions on Mac 1 is 2.7 and the other is 3.7

• when I say sudo easy_install pip, pip got installed under 2.7

• when I say sudo easy_install-3.7 pip, pip got installed under 3.7

But, whenever I would require to do pip install , I wanted to install the package under python3.7, so I have set an alias (alias pip=pip3)in .bash_profile

so now, whenever I do pip install , it gets installed under python3.7

The updated command for installing pip3 is :

sudo apt-get install python3-pip