Download Python-pip For Mac
Apple’s Mac OS comes with python 2.7 installed by default. Perhaps you may want to use python 3.x.x on your machine and also use pip for package management with python 3.x.x.
The easiest way to achieve this is by:
Python and OS Compatibility¶. Pip works with CPython versions 2.7, 3.5, 3.6, 3.7, 3.8 and also PyPy. This means pip works on the latest patch version of each of. Pip-download is a tool which can be used to download python projects and their dependencies listed on pypi's download files page. If you run the pip-download command to download one project on a Linux platform, packages end with.whl and can be directly installed on a Windows and a macOS platform will also be downloaded.
- For most Unix systems, you must download and compile the source code. The same source code archive can also be used to build the Windows and Mac versions, and is the starting point for ports to all other platforms.
- Download Mac OS X 64-bit/32-bit Installer; Python 3.3.5rc1 - Feb. Download Mac OS X 32-bit i386/PPC installer; Download Mac OS X 64-bit/32-bit installer.
- Mac; 2 Min Read; September 8, 2017; QuickTip: How Do I Install pip on macOS or OS X? Even if you are not into Python there comes a time when you end up with the need of having to install pip on your macOS or OSX based computer. Searching online would lead you to long tutorials which are not really what you need.
NOTE: This tutorial does not useVirtual Environments like virtualenv
or pyenv
to manage various python
versions
1. Installing python3
- Follow this link and download the latest
python3
OS X
package - Run the package and follow the steps to install
python3
on your computer. - Once the installation is done, on your
Terminal
, run
This will print out the version of python installed on your system. The output should be similar to:
You may verify the installation directory of python
by runningthe following line on the Terminal
.
The prompt should print the install path for python3
. An example output is:
2. Install pip3
:
- Securely download the
get-pip.py
file from this link - From the directory where the file was downloaded to, run the following command in the
Terminal
- Once the installation completes you should see the prompt print message similar to this
- Verify the installation of
pip3
by running the following on theTerminal
This should return the install location of pip3
.
- To install
python3
packages usingpip3
, run
Remember to replace packageName
with the appropriate package name for your case.
Happy Pythoning!
In this post, we will provide step by step instructions for installing OpenCV 3.3.0 (C++ and Python) on MacOS and OSX.
Step 1: Install XCode
Install XCode from App Store.
If XCode available on App Store is not compatible with your OS:
- Find XCode version compatible to your OS from this table https://en.wikipedia.org/w/index.php?title=Xcode#Version_comparison_table
- Go to this webpage https://developer.apple.com/download/more/
- Login if you have apple developer account else create your account and login.
- Search for xcode and download the version compatible to your OS.
- Install XCode.
- After installation open XCode, and accept xcode-build license when it asks.
Step 2: Install Homebrew
Launch a terminal from Launchpad. From this step onward, all commands will be run in the terminal.
Step 3: Install Python 2 and Python 3
Python version (2.6 or 2.7, 3.5 or 3.6) installed on your machine is required to determine path of Python’s site-packages. It will be used later.
NOTE : Recently Homebrew made some changes in Python formula. Earlier homebrew used to install python2 as /usr/local/bin/python. Now it follows these rules:
- Install python2 at /usr/local/bin/python2
- Install python3 at /usr/local/bin/python3
- python command will point to /usr/bin/python. This is the python distribution which comes with your OS and not installed by Homebrew.
Download Python-pip For Mac Catalina
We want to use Python installed by Homebrew because it makes installing/managing packages easier. To run python scripts you should run command python2 and python3 for Python 2 & 3 respectively. If you find this annoying and want to use command python to run python2, add following line to ~/.bash_profile.
This step is recommended not just for this course but in general to keep the python installation clean. Adobe content viewer mac download.
Step 4: Install Python libraries in a Virtual Environment
We will use Virtual Environment to install Python libraries. It is generally a good practice in order to separate your project environment and global environment.
Step 5: Install OpenCV
Step 5.1 : Compile & Install OpenCV
Note: Homebrew recently moved many popular formulae to homebrew-core.
Earlier you can install OpenCV 2 using formula name opencv and OpenCV 3 using formula name opencv3.
They have now renamed opencv3 to opencv and opencv to [email protected]
Various options such as –with-qt, –with-tbb etc are also removed in the updated formula and CUDA support is also dropped.
You can check these github issues 15853, 6126, 16640, 5996
to read more about it.
Homebrew has also made it compulsory to compile and install Python bindings for both Python 2 and Python 3. So if you don’t have Python 3 installed, Homebrew will install it while installing opencv.
Step 5.2 : Add OpenCV’s site-packages path to global site-packages
When brew is done compiling and installing OpenCV3, we will update path of site-packages directory which contains cv2.so file to Homebrew Python’s site-packages directory. Depending upon the Python version you have (2.6/2.7 or 3.5/3.6) these paths would be different.
Step 6: Make OpenCV3 Python symlink in our virtual environment
Path to OpenCV’s Python library will be different depending upon which Python version you have. Double check the exact path and filename on your machine. Use this command to find out the path on your machine.
Step 7: Test OpenCV3
Now you can exit from Python virtual environment.
Now whenever you are going to run Python scripts which use OpenCV you have to activate the virtual environment we created using workon command.
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