Installing python3 on Mac - rajivkanaujia/alphaworks GitHub Wiki
Use this to install Python 3 if your Mac does not come with it. Run following command and check the output
$ python3 --version
Python 3.7.3
If you don't have it installed, continue to install it.
This will take a while to run
$ brew install python3
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/cask).
==> Updated Casks
google-chrome
==> Installing dependencies for python: gdbm, [email protected], readline, sqlite and xz
==> Installing python dependency: gdbm
==> Downloading https://homebrew.bintray.com/bottles/gdbm-1.18.1.catalina.bottle
######################################################################## 100.0%
==> Pouring gdbm-1.18.1.catalina.bottle.1.tar.gz
🍺 /usr/local/Cellar/gdbm/1.18.1: 20 files, 602.8KB
==> Installing python dependency: [email protected]
==> Downloading https://homebrew.bintray.com/bottles/[email protected]
==> Downloading from https://akamai.bintray.com/19/1926679569c6af5337de812d86f4d
######################################################################## 100.0%
==> Pouring [email protected]
==> Caveats
A CA file has been bootstrapped using certificates from the system
keychain. To add additional certificates, place .pem files in
/usr/local/etc/[email protected]/certs
and run
/usr/local/opt/[email protected]/bin/c_rehash
[email protected] is keg-only, which means it was not symlinked into /usr/local,
because macOS provides LibreSSL.
If you need to have [email protected] first in your PATH run:
echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.bash_profile
For compilers to find [email protected] you may need to set:
export LDFLAGS="-L/usr/local/opt/[email protected]/lib"
export CPPFLAGS="-I/usr/local/opt/[email protected]/include"
==> Summary
🍺 /usr/local/Cellar/[email protected]/1.1.1g: 8,059 files, 18MB
==> Installing python dependency: readline
==> Downloading https://homebrew.bintray.com/bottles/readline-8.0.4.catalina.bot
==> Downloading from https://akamai.bintray.com/6a/6ae1c8e7c783f32bd22c6085caa4d
######################################################################## 100.0%
==> Pouring readline-8.0.4.catalina.bottle.tar.gz
==> Caveats
readline is keg-only, which means it was not symlinked into /usr/local,
because macOS provides BSD libedit.
For compilers to find readline you may need to set:
export LDFLAGS="-L/usr/local/opt/readline/lib"
export CPPFLAGS="-I/usr/local/opt/readline/include"
==> Summary
🍺 /usr/local/Cellar/readline/8.0.4: 48 files, 1.5MB
==> Installing python dependency: sqlite
==> Downloading https://homebrew.bintray.com/bottles/sqlite-3.31.1.catalina.bott
==> Downloading from https://akamai.bintray.com/e0/e09e8c96db88178e4f47b0cdab647
######################################################################## 100.0%
==> Pouring sqlite-3.31.1.catalina.bottle.tar.gz
==> Caveats
sqlite is keg-only, which means it was not symlinked into /usr/local,
because macOS already provides this software and installing another version in
parallel can cause all kinds of trouble.
If you need to have sqlite first in your PATH run:
echo 'export PATH="/usr/local/opt/sqlite/bin:$PATH"' >> ~/.bash_profile
For compilers to find sqlite you may need to set:
export LDFLAGS="-L/usr/local/opt/sqlite/lib"
export CPPFLAGS="-I/usr/local/opt/sqlite/include"
==> Summary
🍺 /usr/local/Cellar/sqlite/3.31.1: 11 files, 4MB
==> Installing python dependency: xz
==> Downloading https://homebrew.bintray.com/bottles/xz-5.2.5.catalina.bottle.ta
==> Downloading from https://akamai.bintray.com/2d/2dcc8e0121c934d1e34ffdb37fcd7
######################################################################## 100.0%
==> Pouring xz-5.2.5.catalina.bottle.tar.gz
🍺 /usr/local/Cellar/xz/5.2.5: 92 files, 1.1MB
==> Installing python
==> Downloading https://homebrew.bintray.com/bottles/python-3.7.7.catalina.bottl
==> Downloading from https://akamai.bintray.com/ac/acd595852aecc2bfa46c57d86db71
######################################################################## 100.0%
==> Pouring python-3.7.7.catalina.bottle.tar.gz
==> /usr/local/Cellar/python/3.7.7/bin/python3 -s setup.py --no-user-cfg install
==> /usr/local/Cellar/python/3.7.7/bin/python3 -s setup.py --no-user-cfg install
==> /usr/local/Cellar/python/3.7.7/bin/python3 -s setup.py --no-user-cfg install
==> Caveats
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 been installed into
/usr/local/opt/python/libexec/bin
You can install Python packages with
pip3 install <package>
They will install into the site-package directory
/usr/local/lib/python3.7/site-packages
See: https://docs.brew.sh/Homebrew-and-Python
==> Summary
🍺 /usr/local/Cellar/python/3.7.7: 4,006 files, 61.2MB
==> Caveats
==> [email protected]
A CA file has been bootstrapped using certificates from the system
keychain. To add additional certificates, place .pem files in
/usr/local/etc/[email protected]/certs
and run
/usr/local/opt/[email protected]/bin/c_rehash
[email protected] is keg-only, which means it was not symlinked into /usr/local,
because macOS provides LibreSSL.
If you need to have [email protected] first in your PATH run:
echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.bash_profile
For compilers to find [email protected] you may need to set:
export LDFLAGS="-L/usr/local/opt/[email protected]/lib"
export CPPFLAGS="-I/usr/local/opt/[email protected]/include"
==> readline
readline is keg-only, which means it was not symlinked into /usr/local,
because macOS provides BSD libedit.
For compilers to find readline you may need to set:
export LDFLAGS="-L/usr/local/opt/readline/lib"
export CPPFLAGS="-I/usr/local/opt/readline/include"
==> sqlite
sqlite is keg-only, which means it was not symlinked into /usr/local,
because macOS already provides this software and installing another version in
parallel can cause all kinds of trouble.
If you need to have sqlite first in your PATH run:
echo 'export PATH="/usr/local/opt/sqlite/bin:$PATH"' >> ~/.bash_profile
For compilers to find sqlite you may need to set:
export LDFLAGS="-L/usr/local/opt/sqlite/lib"
export CPPFLAGS="-I/usr/local/opt/sqlite/include"
==> 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 been installed into
/usr/local/opt/python/libexec/bin
You can install Python packages with
pip3 install <package>
They will install into the site-package directory
/usr/local/lib/python3.7/site-packages
See: https://docs.brew.sh/Homebrew-and-Python
$ pip install --upgrade setuptools
-bash: pip: command not found
$ pip3 install --upgrade setuptools
Collecting setuptools
Using cached setuptools-35.0.1-py2.py3-none-any.whl
Collecting packaging>=16.8 (from setuptools)
Using cached packaging-16.8-py2.py3-none-any.whl
Collecting appdirs>=1.4.0 (from setuptools)
Using cached appdirs-1.4.3-py2.py3-none-any.whl
Collecting six>=1.6.0 (from setuptools)
Using cached six-1.10.0-py2.py3-none-any.whl
Collecting pyparsing (from packaging>=16.8->setuptools)
Using cached pyparsing-2.2.0-py2.py3-none-any.whl
Installing collected packages: six, pyparsing, packaging, appdirs, setuptools
Found existing installation: setuptools 32.2.0
Uninstalling setuptools-32.2.0:
Successfully uninstalled setuptools-32.2.0
Successfully installed appdirs-1.4.3 packaging-16.8 pyparsing-2.2.0 setuptools-35.0.1 six-1.10.0
export PATH=/usr/local/bin:$PATH
export PATH=/usr/local/opt/sqlite/bin:$PATH
$ source ~/.bash_profile
$ python3 --version
Python 3.6.1
$ pip3 --version
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)
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