How to install dlib for python on mac?

python macos pip dlib

10,813

Solution 1

I think there's more to the error message and it's probably related to CMake, either it's not installed properly or it's not compatible with the pip3 install dlib.

I suggest using Homebrew to install Python3 (which includes pip3) and CMake. Homebrew manages the installation of packages, tools, libraries that might depend on system-related tools, paths, etc. It also prevents you from having to use sudo to install stuff on your system.

Install Homebrew

See the "Install Homebrew" section of https://brew.sh/

Basically:

$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Install Python3 (and pip3) using Homebrew
- See https://docs.brew.sh/Homebrew-and-Python
- See Homebrew's formula for the latest Python3 (python3.7, python3.8, python3.9)
- Basically do one of the following:
```
$ brew install [email protected]  # or [email protected] or [email protected]
$ brew install python@3    # get whichever is the latest version
```
Check Python installation
```
$ python3 -V
$ python3 -m pip -V
```
Install CMake using Homebrew
- See https://formulae.brew.sh/formula/cmake
- Basically:
```
$ brew install cmake
```
Check CMake installation
```
$ brew info cmake
$ cmake --version
```
Finally, install dlib with pip
```
$ python3 -m pip install dlib
```

If you don't want to use Homebrew (for some reason), you can try installing CMake for Mac directly using the installers (dmg or tar.gz) from here: https://cmake.org/download/.

Solution 2

Install Homebrew from here

A bunch of dependencies are needed for dlib:

brew install cmake
brew install boost
brew install boost-python
brew install dlib
pip3 install numpy
pip3 install scipy
pip3 install scikit-image
pip3 install dlib

If this does not work, try:
```
python3 -m pip install dlib
```

Solution 3

dlib is dependent on cmake so you need to install that first. You just need to run following commands on your terminal:

$ brew install cmake 
$ pip install cmake 
$ brew install dlib 
$ pip install dlib

Solution 4

You can install the conda-forge Dlib package by running

conda install -c conda-forge dlib

Conda-forge has made sure to resolve all the dependency conflicts, so I had no issues with the installation. They have pre-built binaries for Windows, Linux, and Mac OS, and Python 2.7 through 3.8. The current package (at the time of this writing) is based on Dlib v19.19.

Solution 5

$ pip3 install --upgrade pip

$ pip3 install global

$ pip3 install cmake

$ pip3 install dlib

$ brew install dlib

$ sudo pip install dlib

View more solutions

10,813

Author by

owcs

Updated on June 17, 2022

Comments

owcs almost 2 years

I'm getting an error when trying to install dlib on Python 3.7 on macOS with

pip3 install dlib

I have installed CMake, so that is not the problem.
I'm getting these error messages:

Failed building wheel for dlib

and

Command "/Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7 -u -c "import setuptools, tokenize;__file__='/private/var/folders/j2/nvk5521j2vn9s1w95_0vlwkm0000gn/T/pip-install-ls2e_3mr/dlib/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/j2/nvk5521j2vn9s1w95_0vlwkm0000gn/T/pip-record-hy3hu262/install-record.txt --single-version-externally-managed --compile" 
failed with error code 1 in /private/var/folders/j2/nvk5521j2vn9s1w95_0vlwkm0000gn/T/pip-install-ls2e_3mr/dlib/

at the end in red. The reason I need dlib is to install face_recognition.

Tomer Shetah over 3 years

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