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I’m using macOS11(beta), BigSur.
I think BigSur is cool but, I have faced many issues that I haven’t had before.
- Crash so many times
- Cannot install some software as well as macOS 10
In this article, I will show you how I could install python via
pyenvon BigSur. The following was the issue I had.
$ pyenv install 3.7.6 python-build: use email@example.com from homebrew python-build: use readline from homebrew Downloading Python-3.7.6.tar.xz... -> https://www.python.org/ftp/python/3.7.6/Python-3.7.6.tar.xz Installing Python-3.7.6... python-build: use readline from homebrew python-build: use zlib from xcode sdk BUILD FAILED (OS X 11.0 using python-build 20180424) Inspect or clean up the working tree at /var/folders/gj/x6v5vwdx1v7741fdfcxwmr100000gn/T/python-build.20200830033458.15319 Results logged to /var/folders/gj/x6v5vwdx1v7741fdfcxwmr100000gn/T/python-build.20200830033458.15319.log Last 10 log lines: struct sf_hdtr sf; ^ ./Modules/posixmodule.c:8401:15: error: implicit declaration of function 'sendfile' is invalid in C99 [-Werror,-Wimplicit-function-declaration] ret = sendfile(in, out, offset, &sbytes, &sf, flags); ^ clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include -I/Applications/Xcode-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes -Werror=implicit-function-declaration -I. -I./Include -I/usr/local/opt/readline/include -I/usr/local/opt/readline/include -I/Users/koji/.pyenv/versions/3.7.6/include -I/usr/local/opt/readline/include -I/usr/local/opt/readline/include -I/Users/koji/.pyenv/versions/3.7.6/include -c ./Modules/pwdmodule.c -o Modules/pwdmodule.o 2 errors generated. make: *** [Modules/posixmodule.o] Error 1 make: *** Waiting for unfinished jobs.... 1 warning generated.
According to the wiki on GitHub, basically this issue will be solved by installing
So, I installed zlib via Homebrew
$ brew install zlib $ export LDFLAGS="-L/usr/local/opt/zlib/lib" $ export CPPFLAGS="-I/usr/local/opt/zlib/include
Maybe some of you will need to install the following.
$ brew install readline xz
However, I got the same error again… I did some research on this issue.
I also tried reinstalling Xcode command-line tools, but it didn’t solve the issue…
Then finally, I figured out the solution.
There are 2 steps to resolve this issue.
Step 1 Align command-line tools
In my case, I use Xcode-beta.app
I needed to check the version of command-line tools matches Xcode.
- Open Xcode-beta.app
- Go to Preference > Locations
- Select the right version of command-line tools (* I use Xcode-beta.app version 5 and command-line tools version 5)
Step 2 Install python
In this case, I installed 3.8.0. If you want to install a different version, you will need to change the version in the following command.
$ CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.8.0 < <(curl -sSL https://github.com/python/cpython/commit/8ea6353.patch\?full_index\=1)
$ pyenv versions * system (set by /Users/koji/.pyenv/version) 3.8.0
Hopefully, this will be useful to some of you!!!
Top comments (18)
pyenv install 3.9.0work for you, then? I've followed all your steps and still get:
For me, the problem was that I needed to have
readline) installed from homebrew, and then having the following environment variable set.
I also had the following set, though I'm not sure if they're required.
Hopefully this helps!
I'm having this same issue after re-installing pyenv (no issues prior to re-installing, but this is the first time I've needed to re-install after upgrading to Big Sur, so I think it's related). Trying your solution now.
Edit: Just reporting back — this worked for me. Thank you very much.
Others who come across this might also want to install and link bzip2 prior to compiling.
This is a snippet I use on all my machines, if you don't always use brew you could always wrap it in an outer check. And yes the -O2 might not be for everybody, then just skip it :)
This one will adhere to whatever location you might have used for Linux Homebrew, on Darwin you would always use /usr/local, since otherwise a lot of brew stuff fails, and it would be a pointless pain to workaround.
comment: Darwin doesn't set this variable, Linux HomeBrew does
if [ "$HOMEBREW_PREFIX" = "" ]; then
comment: Set the env to ensure brew can build stuff
export LDFLAGS="-L$HOMEBREW_PREFIX/opt/zlib/lib -L$HOMEBREW_PREFIX/opt/bzip2/lib"
export CPPFLAGS="-I$HOMEBREW_PREFIX/opt/zlib/include -I$HOMEBREW_PREFIX/opt/bzip2/include"
Thank you, this worked!
pyenv install 3.9.0won't work since there is no 3.9.0.
only 3.9.0b5, 3.9-dev
I'm still stuck with the same problem(( M1 mac
What is your issue?
Installing pyenv or install python via pyenv?
awesome You are here).
I saw some major versions don't work on M1.
Maybe you can try to install python 3.9.1
I have 3.9.1
but the project on 3.6.9.
and during pyenv install occurs errors with my python.
and I should use 3.6.9
and couldn't solve this issue.
Did you try the following?
$ CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.9.1 < <(curl -sSL github.com/python/cpython/commit/8... install miniforge3-4.9.2full_index=1)
Yes I trying.
pyenv: /Users/ruslanskira/.pyenv/versions/3.9.1 already exists )))
but for 3.6.9
patch unexpectedly ends in middle of line
patch: **** Only garbage was found in the patch input.
BUILD FAILED (OS X 11.2.1 using python-build 20180424)
what I found
it is open issue.
Please check this out. Actually I can install 3.6.9 on BigSur.
brew readline xzsupposed to be
brew install readline xz? Still having trouble downgrading to 3.8.0 for Tensorflow compatibility. Am stuck on 3.9.1 currently.
Good catch, thank you!
You mean you haven't installed 3.8.0?
Are you using an M1 Mac?
Hey thank you for writing and sharing this. This worked for me (installed 3.7.3)