I have updated my python 3 to the latest version 3.8:
brew search python
==> Formulae
app-engine-python gst-python python ✔ python@3.8 ✔
boost-python ipython python-markdown wxpython
boost-python3 micropython python-yq
==> Casks
awips-python kk7ds-python-runtime mysql-connector-python
But when I check the python3 version on my mac it still shows 3.7:
python3 --version
Python 3.7.6
how can I default python3 to the latest 3.8 version using Homebrew ?
Edit:
When I tried to use brew switch, it tells me I only installed python 3.7.6, but with last brew upgrade I'm pretty sure that python3.8.1 is installed with Homebrew
brew switch python 3.8.1
python does not have a version "3.8.1" in the Cellar.
python's installed versions: 3.7.6_1
解决方案
Here is the solution:
$ brew info python@3.8
python@3.8: stable 3.8.1 (bottled) [keg-only]
...
==> Caveats
Python has been installed as
/usr/local/opt/python@3.8/bin/python3
...
python@3.8 is keg-only, which means it was not symlinked into /usr/local,
because this is an alternate version of another formula.
If you need to have python@3.8 first in your PATH run:
echo 'export PATH="/usr/local/opt/python@3.8/bin:$PATH"' >> ~/.bash_profile
For compilers to find python@3.8 you may need to set:
export LDFLAGS="-L/usr/local/opt/python@3.8/lib"
For pkg-config to find python@3.8 you may need to set:
export PKG_CONFIG_PATH="/usr/local/opt/python@3.8/lib/pkgconfig"
I will stick to python (v3.7.6) at this time and wait for seamless upgrade of v3.8.1 in the future releases.
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