We Keep Coding

The "Python" command requires the command line developer tools loop with Xcode 13.4.1 on macOS 12.5

My setup is 2021 MBP with M1 Pro processor, macOS 12.5 and Xcode 13.4.1. I'm building an app using NativeScript and I can't release the app because every time I go to product > archive Xcode says "Python command requires the command line tools." When I agree to install it will look like it installed but then start over.
I reset my Mac and reinstalled macOS so a fresh setup was used. First I followed the suggestion from NativeScript docs (https://docs.nativescript.org/environment-setup.html#macos-ios) and ran sudo ln -s $(which python3) /usr/local/bin/python which created an alias for python 2.x. Then did python3 -m pip install --upgrade pip and python3 -m pip install six. Tested my configuration with ns doctor ios - it complained about missing python and Xcode dialog prompted me to install python. Click install, it finishes, running ns doctor ios and starting over.
While it seems like macOS 12.5 ships with python3 already none of the options worked me.
Later found an article where the author suggested installing python using pyenv. So I went that path, installed it globally and set env into my shell. Retested and got the same error.
Xcode-select -p results in /Applications/Xcode.app/Contents/Developer
I tried:
sudo ln -s /Applications/Xcode.app/Contents/Developer/usr/bin/python3 /Applications/Xcode.app/Contents/Developer/usr/bin/python
and
sudo ln -s /Library/Developer/CommandLineTools/usr/bin/python3 /Library/Developer/CommandLineTools/usr/bin/python
None helped. I also tried
sudo ln -s /Applications/Xcode.app/Contents/Developer/usr/bin/python3.8 /Applications/Xcode.app/Contents/Developer/usr/bin/python
as I noticed there's python3.8 in Xcode's folder but that didn't work either. I'm a bit confused why Xcode is looking for Xcode in it's own folder now and doesn't use python3 that comes with macOS.

I finally found a fix.
Steps I did to make it work:
Removed all symlinks I've set originally
Removed python installed via pyenv using pyenv uninstall 3.10.6
Ran brew uninstall pyenv to removepyenv
brew install python
python --version results in Python 3.9.13
And finally sudo ln -s $(which python3) /usr/local/bin/python
So essentially if you're on a new system do steps 4 and 6 and you should be good to go.

Can't install pyenv 3.8.5 on MacOS Big Sur with M1 chip?

I am trying to run pyenv install 3.8.5 but keep getting the error below:
python-build: use openssl#1.1 from homebrew
python-build: use readline from homebrew
Downloading Python-3.8.5.tar.xz...
-> https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tar.xz
Installing Python-3.8.5...
python-build: use readline from homebrew
python-build: use zlib from xcode sdk
BUILD FAILED (OS X 11.5.1 using python-build 20180424)
Inspect or clean up the working tree at /var/folders/61/8hkv2j8j6x7d7ldfq1d201b80000gp/T/python-build.20211009182855.32315
Results logged to /var/folders/61/8hkv2j8j6x7d7ldfq1d201b80000gp/T/python-build.20211009182855.32315.log
Last 10 log lines:
checking size of _Bool... 1
checking size of off_t... 8
checking whether to enable large file support... no
checking size of time_t... 8
checking for pthread_t... yes
checking size of pthread_t... 8
checking size of pthread_key_t... 8
checking whether pthread_key_t is compatible with int... no
configure: error: Unexpected output of 'arch' on OSX
make: *** No targets specified and no makefile found. Stop.
Trying to install via homebrew. The weird thing is that I can install pyenv 3.9.6. I think it has something to do with that version not being compatible with the new silicon M1 chip. I've tried Problems installing python 3.6 with pyenv on Mac OS Big Sur and Issues Installing Python 3.x via Pyenv but nothing is working.
Thanks in advance!!

https://www.python.org/downloads/release/python-391/
3.9.1 is the first version of Python to support macOS 11 Big Sur.
https://www.python.org/downloads/release/python-3810/
Python 3.8.10
... But there's a bunch of important updates here regardless, the biggest being Big Sur and Apple Silicon build support.
You cannot install 3.8.5, unfortunately.
Addendum:
Using pyenv and Rosetta, it might be possible to install older Python versions. From Python virtual environments with pyenv on Apple Silicon:
First of all, to be able to run x86 executables, we'll need to install
Rosetta:
$ softwareupdate —install-rosetta
Now we can install the x86 Homebrew:
$ arch -x86_64 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
It will be installed in the /usr/local/bin/ directory. For
convenience, you can create an alias by adding the following line in
your shell configuration file:
alias brew86="arch -x86_64 /usr/local/bin/brew"
Now we can invoke the x86 Homebrew as brew86 and install packages
required by
pyenv:
$ brew install openssl readline sqlite3 xz zlib
$ brew86 install openssl readline sqlite3 xz zlib
You can check whether the installation was successful and you have
packages for both architectures using the file command, for example:
$ file /opt/homebrew/Cellar/openssl#1.1/1.1.1k/bin/openssl
/opt/homebrew/Cellar/openssl#1.1/1.1.1k/bin/openssl: Mach-O 64-bit executable arm64
$ file /usr/local/Cellar/openssl#1.1/1.1.1k/bin/openssl
/usr/local/Cellar/openssl#1.1/1.1.1k/bin/openssl: Mach-O 64-bit executable x86_64
To install x86 Python, you'll need to call pyenv with the arch -x86_64 prefix. For convenience, let's create an alias for this command by adding the following line in the shell config file:
alias pyenv86="arch -x86_64 pyenv"
Now you can install x86 Python binaries by calling:
$ pyenv86 install <PYTHON_VERSION>
By default, pyenv doesn't allow you to specify custom names for the
installed Python versions, but you can use the
pyenv-alias plugin to give
your installations appropriate names:
$ VERSION_ALIAS="3.x.x_x86" pyenv86 install 3.x.x
Note that with aliases for your pyenv and Homebrew installations,
you’ll have to specify them in all commands and locations, for
example:
$ CFLAGS="-I$(brew86 --prefix openssl)/include" \
LDFLAGS="-L$(brew86 --prefix openssl)/lib" \
VERSION_ALIAS="3.x.x_x86" \
pyenv86 install -v 3.x.x

I solved my issue of installing 3.7.6 using pyenv on macbook m1 using this solution. This also shows how to create a patch file that should help install other python versions. hope this helps.
Error installing python 3.7.6 using pyenv on new macbook pro M1 in OS 12.3+

Install python#2 on Mac with M1 chip

Long story short, I want to install Apache Cassandra on a MacBook Pro with M1 chipset.
In order to install it, one must install other softwares before, one of them being python which must be updated to the latest version. I have followed this tutorial.
This is what terminal shows up when asking about python existing version:
> python --version
Python 2.7.16
In tutorial they are updating it to 2.7.17, so I try to do the same:
> brew install python#2
and this is the output:
Warning: No available formula or cask with the name "python#2". Did you mean bpython, ipython, jython or cython?
==> Searching for similarly named formulae...
These similarly named formulae were found:
bpython ipython jython cython
To install one of them, run (for example):
brew install bpython
==> Searching for a previously deleted formula (in the last month)...
Error: No previously deleted formula found.
==> Searching taps on GitHub...
Error: No formulae found in taps.
Any ideas how to overcome this issue?

I could install 2.7.18 on M1.
brew install pyenv
pyenv install 2.7.18
Set the python version.
pyenv global 2.7.18
Export PATH if necessary.
export PATH="$(pyenv root)/shims:${PATH}"
Add if necessary.:
echo 'PATH=$(pyenv root)/shims:$PATH' >> ~/.zshrc

Sometimes you will get some errors like missing something
if you are using rosetta then run
arch -arm64 pyenv install 2.7.18

Have python 3 and pip 3 installed but pip -V shows 19.2.3

I have followed the instructions at https://opensource.com/article/19/5/python-3-default-mac:
Now, python -V shows 3.8.1, but pip -V still shows 19.2.3.
I checked with which pip3, which shows
/Library/Frameworks/Python.framework/Versions/3.8/bin/pip3, but using
echo "alias pip=/Library/Frameworks/Python.framework/Versions/3.8/bin/pip3>> ~/.zshrc does not seem to work.
pip -V gives: pip 19.2.3 from /Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/pip (python 3.8).
I have MacOS Cataline 10.15.3. Can someone help please?

There seems nothing wrong with your setup. pip has a version number that is independent of that of python. Your python version is 3.8 and the corresponding pip (which resides in python3.8/site-packages/pip) has version 19.2.3. You have set up everything just fine

In fact I was trying to install python in pyenv and get my IDLE to work. The following worked for me (mostly from https://github.com/pyenv/pyenv/issues/1375; Installed Python 3 on Mac OS X but its still Python 2.7; https://opensource.com/article/19/5/python-3-default-mac, with a few additional steps). Thanks for your help. I posted my solution at https://github.com/pyenv/pyenv/issues/1375, too, for reference)
ran $brew install pyenv
ran $brew install tcl-tk
Output after "brew reinstall tcl-tk':
tcl-tk is keg-only, which means it was not symlinked into /usr/local,
because tk installs some X11 headers and macOS provides an (older) Tcl/Tk.
If you need to have tcl-tk first in your PATH run:
echo 'export PATH="/usr/local/opt/tcl-tk/bin:$PATH"' >> ~/.zshrc
(I added it to ~/.zshrc as the first line)
For compilers to find tcl-tk you may need to set:
export LDFLAGS="-L/usr/local/opt/tcl-tk/lib"
export CPPFLAGS="-I/usr/local/opt/tcl-tk/include"
(I added these two to ~/.zshrc, too, after adding the above)
For pkg-config to find tcl-tk you may need to set:
export PKG_CONFIG_PATH="/usr/local/opt/tcl-tk/lib/pkgconfig"
(I added this two to ~/.zshrc, too, after adding the above)
To get tcl-tk 8.6 to work with the pyenv install of python, I found:
/usr/local/Cellar/pyenv/1.2.13/plugins/python-build/bin/python-build
and replaced the following:
$CONFIGURE_OPTS ${!PACKAGE_CONFIGURE_OPTS} "${!PACKAGE_CONFIGURE_OPTS_ARRAY}" || return 1
with:
$CONFIGURE_OPTS --with-tcltk-includes='-I/usr/local/opt/tcl-tk/include' --with-tcltk-libs='-L/usr/local/opt/tcl-tk/lib -ltcl8.6 -ltk8.6' ${!PACKAGE_CONFIGURE_OPTS} "${!PACKAGE_CONFIGURE_OPTS_ARRAY}" || return 1
ran $pyenv install 3.8.1
Installed Python-3.8.1 to /Users/ryan/.pyenv/versions/3.8.1
ran $pyenv global 3.8.1
Refreshed the current terminal and checked
$pyenv version
output: 3.8.1 (set by /Users/ryan/.pyenv/version)
Ran $python -V
output: Python 3.8.1
ran $pip install --upgrade pip (since I had previously already installed pip using $pip install)
output: Successfully installed pip-20.0.2
Tested my tcl-tk installation with $python -m tkinter -c 'tkinter._test()'
Output: Tk window popped up. Hit ‘Quit’ to back to Terminal.
Ran $ idle
Output: Python 3.8.1 Shell window popped up.
The installation was done on a MacBook Pro with macOS Catalina 10.15.3.

pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available

I am using Python 3.6. When I try to install "modules" using pip3, I face this issue:
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available

For Windows 10
if you want use pip in normal cmd, not only in Anaconda prompt. you need add 3 environment paths.
like the followings:
D:\Anaconda3
D:\Anaconda3\Scripts
D:\Anaconda3\Library\bin
most people only add D:\Anaconda3\Scripts

MAC OS
I had the same problem on Mac OS(Mojave) and solved the problem as mentioned on this link - Openssl issue.
If you do not have Homebrew or don't know what is Homebrew:
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Or if you already have Homebrew installed:
brew update && brew upgrade
brew uninstall --ignore-dependencies openssl; brew install https://github.com/tebelorg/Tump/releases/download/v1.0.0/openssl.rb
Update:
Keep in mind, that I had to use --ignore-dependencies flag, because other packages installed that depend on OpenSSL.
Additional if the problem is caused after using pyenv, you can fix it by using:
brew reinstall python

For Debian users, the following may be of use:
sudo apt install libssl-dev libncurses5-dev libsqlite3-dev libreadline-dev libtk8.6 libgdm-dev libdb4o-cil-dev libpcap-dev
Then cd to the folder with the Python 3.X library source code and run:
./configure
make
make install

I'm using Windows 10 and installed Miniconda 3 with Python 3.7.
I solved this error by following this https://github.com/conda/conda/issues/8273
Specifically, I copied the following files from C:\Users\MyUser\Miniconda3\Library\bin to C:\Users\MyUser\Miniconda3\DLLs:
libcrypto-1_1-x64.dll
libcrypto-1_1-x64.pdb
libssl-1_1-x64.dll
libssl-1_1-x64.pdb

For centos 7:
Install openssl:
sudo yum install openssl-devel
now goto python directory were we extracted the python tar,
run below commands
sudo ./configure
sudo make
sudo make install
This will fix the problem in centos...

For future Oracle Linux users trying to solve this, below is what worked for me.
First install missing libs:
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel
readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
Then cd to your Python3.X library and run:
make
make install

macOS, pyenv
In case of your python being an pyenv installed one, where pyenv is installed with homebrew on macOS, there might me a newer version available which fixes this:
$ brew update && brew upgrade pyenv
Then reinstalling the python version:
$ pyenv install 3.7.2
pyenv: /Users/luckydonald/.pyenv/versions/3.7.2 already exists
continue with installation? (y/N)
Note, it is a bit dirty to overwrite the existing python install like that, but in my case it did work out. Probably cleaner to delete it and then recreate it properly.

For Windows 10,windows 7
If pip install is not working on CMD prompt, run it using Anaconda prompt - it works.
https://github.com/pypa/virtualenv/issues/1139

Worked for me.
sudo apt-get install libssl-dev
Use this to enable ssl for pip.
Let me know if someone encounters issues.

Encountered this issue while installing python 3.8 from source on ubuntu. The steps needed to install it successfully alongside the default python 3.7 are summarised below :
sudo apt -y install libssl-dev zlib1g-dev build-essential
wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
tar -xf Python-3.8.0.tgz
cd Python-3.8.0/
./configure --enable-optimizations
make
sudo make altinstall
The install instruction for zlib1g-dev and build-essential is redundant, as ubuntu desktop already has these, but was necessary for some of Amazon's EC2 instances. python 3.8.0 is the current release just now, but should be replaced with the latest available.
These instructions are best for keeping python 3.7 as the default for python3, and running python 3.8 in a virtual environment.

Similar to the above solution reinstall the python version with pyenv.
Somehow, I upgraded my openssl which broke the pyenv version python.
pyenv install 3.6.8
python-build: use openssl#1.1 from homebrew
python-build: use readline from homebrew
...
The first line says it relies on the homebrew openssl.

In my case, I reinstalled Python. It solved the problem.
brew reinstall python

For OpenSUSE in the same manner, but a few changes of listed above packages:
zypper install zlib-devel libopenssl-devel ncurses-devel sqlite3-devel readline-devel tk-devel gdbm-devel libpcap-devel xz-devel
Then cd to Python sources dir and
make
make install
or
make
make altinstall
And perhaps
ln -s /usr/local/lib64/python3.6/lib-dynload/ /usr/local/lib/python3.6/lib-dynload
should be executed for OpenSUSE users. See Python 3.7 install not working on openSUSE Leap 42.3

Just try installing through Anaconda prompt

I ran into this issue with Visual Studio Code installing pylint from the VS Code prompt.
I was able to overcome the issue by opening the Anaconda installation directory and running
pip install pylint
Then VS Code was happy, but that did not fix the issue as running
& C:/Users/happy/Anaconda3/python.exe -m pip install -U pylint
pretty much gave the same error so it seems that VS Code is unable to access the python modules.
Note that VS Code picks up the first python env it see when installed, the bottom left of the screen indicates which env is being used. Clicking on that area allows to set the environment. So even if you ran the pip install for an environment VS Code could be looking at a different one.
Best approach was to make sure that VS code had the correct python environment selected and that same environment is in the system PATH (under System Properties --> Advanced --> Environmental Variables)
Under the Path Variable, Edit and browse to the specific Anaconda directory that you want VSCode to use and add to PATH, I needed to Add the following:
C:\Users\happy\Anaconda3\
C:\Users\happy\Anaconda3\Scripts\
C:\Users\happy\Anaconda3\Library\bin\
C:\Users\happy\Anaconda3\Library\mingw-w64\bin\
Your Anaconda installation directory may differ.
One note is that Windows does not have the PATH variable take effect until you restart the terminal. In this case close and re-op VS code. If using a Terminal or PS Shell then close and reopen and check Path to make sure it is included.

The problem probably comes from your installed openssl package version. That was the case for me and I fixed this issue just upgrading it. I'm on Mac OS, using brew :
brew upgrade openssl
If you installed python with brew, this should directly fix the issue with it, as python is dependent on openssl

Newest Python 3.8.4 or higher should able to support https protocol out of box. If you still have old python installation on your pc - either download & install python3 manually, or using Chocolatey:
If you don't have Chocolatey, install it - from here: https://chocolatey.org/docs/installation
You can just copy paste one command line liner and execute it from command prompt with elevated priviledges.
choco install python3
if you don't have python3 installed, or you you have it installed - then:
choco upgrade python3
Notice also that you can use also anaconda distribution, as it has built-in python with https support, but this rather ancient instructions, no need to follow them anymore.
Install anaconda, using command line:
choco install anaconda3
Set environment variables:
set PATH=C:\tools\Anaconda3\Scripts;C:\tools\Anaconda3;C:\tools\Anaconda3\Library\bin;%PATH%
and then run command which failed. In my case it was:
pip install conan
Anaconda uses separate python installation, and pip is also anaconda specific.

As Tokci said, it also works for Windows 7.
"Go with the mouse to the Windows Icon (lower left) and start typing "Anaconda". There should show up some matching entries. Select "Anaconda Prompt". A new command window, named "Anaconda Prompt" will open."
Then pip works.
The following also helped to import xgboost:
https://www.youtube.com/watch?v=05djBSOs1FA

If someone is using Arch Linux OS, I solved the TLS/SSL problem by running this:
sudo pacman -S openssl
Then I could use pip to install the package I needed:
pip install openpyxl

Go to Anaconda prompt and type (if you have python 3.x installed on your engine) :
py -m pip install pymysql
i was having the same issue and this solved my problem. later after doing this you can import pymysql in power shell or any other prompt.

The issue is due to OpenSSL package is missing on your PC.
If pip install openpyxl also gives error.
you can fix this by installing OpenSSL(Win64 OpenSSL v1.1.1g) from below site :
slproweb.com/products/Win32OpenSSL.html
Restart the IDE you are using, for changes to be in effect.

In Windows 10 SQL Server 19 the solution is known.
Copy the following files:
libssl-1_1-x64.dll
libcrypto-1_1-x64.dll
from the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\Library\bin
to the folder
C:\Program Files\Microsoft SQL Server\MSSSQL15.MSSQLSERVER\PYTHON_SERVICES\DLLs
Then open a new DOS command shell prompt.
From https://learn.microsoft.com/en-us/sql/machine-learning/troubleshooting/known-issues-for-sql-server-machine-learning-services?view=sql-server-ver15#7-unable-to-install-python-packages-using-pip-after-installing-sql-server-2019-on-windows

Worked for me.
pkg install openssl
Use this to enable ssl.

Currently there is same issue in Anaconda prompt (Anaconda3) on Windows 10. Here is workaround: https://github.com/ContinuumIO/anaconda-issues/issues/10576

Fixed this without having to change anything related to TSL/SSL.
I was trying to see if the same thing was happening to pip, and saw that pip was broken. Did some digging and realized it's probably caused by Homebrew deleted python#2 on February 1st, 2020.
Running brew uninstall python#2 to delete python2 installed by Homebrew.
Destroyed the virtual env created using python3 and created a new one. pip3 installing works fine again.

I am on macOS and I had used brew but what Vaulstein mentioned in his answer didn't cover my case.
I run the following commands to make sure my current python was not installed by brew
brew list | grep python
python
python#2
brew info python
python#3.8: stable 3.8.3 (bottled)
Interpreted, interactive, object-oriented programming language
https://www.python.org/
Not installed
...
So I download the latest 3.8.5 from https://www.python.org/ and when installing it I saw following information
Certificate verification and OpenSSL
This package includes its own private copy of OpenSSL 1.1.1. The
trust certificates in system and user keychains managed by the
Keychain Access application and the security command line utility are not used as defaults by the Python ssl module
After installed 3.8.5 it fixed the problem.

I got into this problem using Ubuntu, pyenv and Python 3.8.1 managed by pyenv. There was actually no way to get pip to work correctly, since every time I tried to install anything, including pip itself, the same error showed up.
Final solution was to install, via pyenv, a newer version, in this case 3.8.6. Apparently, from 3.8.4 Python is prepared to run SSL/TLS out of the box, so everything worked fine.

I simply solved the problem with following command:
brew upgrade python#3.9
SSL is included by default on this version!

In my case I was running into issues with my $PATH on Linux. This can also happen on MacOS.
Check to see if /usr/bin/pip3 install package_name_goes_here works for you. If so then run
which pip3 this will tell you which is the first directory that pip3 is installed in.
If it is something like /usr/local/bin/pip3 which is different from /usr/bin/pip3 then you may need to adjust your $PATH.
Run
echo $PATH and copy the result.
The PATH is simply a colon separated list of directories that contain directories. Bash will always return the first instance of the program that you are attempting to execute. Move all the system directories upfront. Here is a list of some of the system directories:
/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin
If that fails then verify you have openssl installed by running openssl version -a if not then install openssl.

If you've installed anaconda via scoop, and encounter this error while using pip from within a conda environment you can resolve it by...
Adding these to your path
C:\Users\YOUR_USERNAME\scoop\apps\anaconda3\current
C:\Users\YOUR_USERNAME\scoop\apps\anaconda3\current\Scripts
C:\Users\YOUR_USERNAME\scoop\apps\anaconda3\current\Library
C:\Users\YOUR_USERNAME\scoop\apps\anaconda3\current\Library\bin
Installing openssl via scoop
scoop install openssl
And copying the following DLLs from ..\anaconda3\Library\bin to ..\anaconda3\DLLs
References:
https://stackoverflow.com/a/54897379
https://stackoverflow.com/a/60405693