Install Opencv Python Mac

I spent most of the day yesterday searching for a clear answer for installing pip (package manager for Python). I can't find a good solution.

How do I install it?

Peter Mortensen

Install python on your computer by any method you want: Anaconda, Homebrew, etc. The Homebrew version of OpenCV is compiled to support Pythons 2.7 and 3.6 so you may as well install one of those, although other versions may work too. This will help: HOWTO: Install, Build and Use openCV (MacOSX 10.10) Install OpenCV 3 on macOS with Homebrew (the easy way) - PyImageSearch.

The SystemThe System

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21 Answers

If you need admin privileges to run this, try:

UPDATE (Jan 2019):

easy_install has been deprecated. Please use get-pip.py instead.

Scott TeslerScott Tesler

⚡️ TL;DR — One line solution.

All you have to do is:

2019: ⚠️easy_install has been deprecated. Check Method #2 below for preferred installation!

I made a gif, coz. why not?

Details:

⚡️ OK, I read the solutions given above, but here's an EASY solution to install pip.

MacOS comes with Python installed. But to make sure that you have Python installed open the terminal and run the following command.

If this command returns a version number that means Python exists. Which also means that you already have access to easy_install considering you are using macOS/OSX.

ℹ️ Now, all you have to do is run the following command.

After that, pip will be installed and you'll be able to use it for installing other packages.

Let me know if you have any problems installing pip this way.

Cheers!

P.S. I ended up blogging a post about it. QuickTip: How Do I Install pip on macOS or OS X?

✅ UPDATE (Jan 2019): METHOD #2: Two line solution —

easy_install has been deprecated. Please use get-pip.py instead.

First of all download the get-pip file

Now run this file to install pip

That should do it.

Another gif you said? Here ya go!

Ahmad AwaisAhmad Awais

You can install it through Homebrew on OS X. Why would you install Python with Homebrew?

The version of Python that ships with OS X is great for learning but it’s not good for development. The version shipped with OS X may be out of date from the official current Python release, which is considered the stable production version. (source)

Homebrew is something of a package manager for OS X. Find more details on the Homebrew page. Once Homebrew is installed, run the following to install the latest Python, Pip & Setuptools:

PeteLeighLeigh

I'm surprised no-one has mentioned this - since 2013, python itself is capable of installing pip, no external commands (and no internet connection) required.

This will create a similar install to what easy_install would.

felixphewfelixphew

On Mac:

1. Install easy_install

2. Install pip

3. Now, you could install external modules. For example

PavanPavan

pip is available on OS X via easy_install.
Open a terminal and type:

When prompted for a password enter your normal login password.
After the installation has completed you should be able to use pip as expected.

note: this works for other python packages too

Shirkrin

The simplest solution is to follow the installation instruction from pip's home site.

Basically, this consists in:

• downloading get-pip.py. Be sure to do this by following a trusted link since you will have to run the script as root.
• call sudo python get-pip.py

The main advantage of that solution is that it install pip for the python version that has been used to run get-pip.py, which means that if you use the default OS X installation of python to run get-pip.py you will install pip for the python install from the system.

Most solutions that use a package manager (homebrew or macport) on OS X create a redundant installation of python in the environment of the package manager which can create inconsistencies in your system since, depending on what you are doing, you may call one installation of python instead of another.

NEW 2016 December: This worked for me on OS X v10.11 (El Capitan):

Mac comes with python 2, but not with pip.

Requirements

Steps:

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

2. sudo python get-pip.py

With this I got these errors (but I've solved them in step 3):

The directory '/Users/myuser/Library/Caches/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 '/Users/myuser/Library/Caches/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.

3. pip install --upgrade pip

Finally you can install an app like:

4. pip install couchapp

UPDATE: Python 3

If you install python 3, pip will be installed automatically.

You need only to upgrade pip, but before that you need create a virtual environment to work with Python 3. You can use a project folder or any folder:

Check the versions:

To deactivate the environment:

stackdavestackdave

Installing a separate copy of Python is a popular option, even though Python already comes with MacOS. You take on the responsibility to make sure you're using the copy of Python you intend. But, the benefits are having the latest Python release and some protection from hosing your system if things go badly wrong.

To install Python using HomeBrew:

Now confirm that we're working with our newly installed Python:

..should show a symbolic link to a path with 'Cellar' in it like:

Pip should be installed along with Python. You might want to upgrade it by typing:

Now you're ready to install any of the 50,000+ packages on PyPI.

Other Notes

Formerly, I've used get-pip.py to install pip. But, the docs warn that get-pip.py does not coordinate with package managers and may leave your system in an inconsistent state. Anyway, there's no need, given that pip is now included with Python as of 2.7.9.

Note that pip isn't the only package manager for Python. There's also easy_install. It's no good to mix the two, so don't do it.

Finally, if you have both Python 2 and 3 installed, pip will point to whichever Python you installed last. Get in the habit of explicitly using either pip2 or pip3, so you're sure which Python is getting the new library.

Happy hacking!

cbarecbare

For those who have both python2 & python3 installed, here's the solution:

Additionally, if you wanna install pip for python3.6:

Flimzy

On the recent version (from Yosemite or El Capitan I believe.. at least from Sierra onward), you need to run brew postinstall python3 after brew install python3 if you use homebrew.

So,

UPDATED - Homebrew version after 1.5

According to the official Homebrew page:

On 1st March 2018 the python formula will be upgraded to Python 3.x and a python@2 formula will be added for installing Python 2.7 (although this will be keg-only so neither python nor python2 will be added to the PATH by default without a manual brew link --force). We will maintain python2, python3 and python@3 aliases.

So to install Python 3, run the following command:

Then, the pip is installed automatically, and you can install any package by pip install <package>.

BlaszardBlaszard

You should install Brew first:

Then brew install Python

Then pip will work

Download this file: get-pip.py

Then simply type

Make sure you are on the same directory as get-pip.py or you supply the correct path for that file.

For details, you can visit: http://pip.readthedocs.org/en/latest/installing.html

or, http://thegauraw-blog-blog.tumblr.com/post/47601704154/how-to-install-pip-in-both-windows-ubuntu-easiest-way

thegaurawthegauraw

If you want 'pip3' you can do the ff:

via brew: brew install python3Blues piano noten kostenlos.

then you can execute

pip3 <command> [options]

Emil Reña EnriquezEmil Reña Enriquez

Then update your PATH to include py27-pip bin directory (you can add this in ~/.bash_profilePATH=/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin:$PATH

pip will be available in new terminal window.

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To install or upgrade pip, download get-pip.py from http://www.pip-installer.org/en/latest/installing.html

Then run the following:sudo python get-pip.py

For example:

If you want to install pip without the need for sudo, which is always frustrating when trying to install packages globally, install pip in your local folder /usr/local like this:

and then:

pip install <package-of-choice> without sudo

MrEMrE

Download python setup tools from the below website:

Use the tar file.

Once you download, go to the downloaded folder and run

Once you do that,you will have easy_install.

Use the below then to install pip:

thenakulchawlathenakulchawla

Install python3 first, then use pip3 to install packages.

python3 will be installed, and pip is shipped with it. To use pip to install some package, run the following

Notice it's pip3 because you want to use python3.

FelixSFD

Somehow easy install doesn't work on my old mac (10.8). This solve my problem.

If you do not have wget, just open in browser https://bootstrap.pypa.io/get-pip.py then save as get-pip.py

I recommend Anaconda to you. It`s the leading open data science platform powered by Python. There are many basic packages installed.

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