env: python: No such file or directory when building app with Xcode

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When I build/run/archive my app in Xcode (on MacOS 12.3) I encounter this error:

env: python: No such file or directory
Command Ld failed with a nonzero exit code

I think I might have changed something with regard to my python environment while working on a school project or messed something up there. However, I can not figure out what is wrong.

I tried reinstalling Xcode and python (using brew and pyenv). I also relinked python using brew. But I still encounter the same error.

Which python gives the following results:

which python3
-> /usr/local/bin/python3

And in my ~/.zshrc I have the following line:

export PATH=/usr/local/bin:/usr/local/sbin:~/bin:$PATH

Any help would be appreciated! If I missed or forgot anything please let me know, I'm quite new to this.

nativescript xcode python
7 Answers

Homebrew only installs the binary python3, just to be safe. Xcode is complaining about a lack of the binary python (note the lack of a 3!).

You have a couple of options:

  1. When installing python3, Homebrew also creates a libexec folder with unversioned symlinks, such as python (what you're missing). Note the Caveats printed when installing it:

    $ brew info python
python@3.9: stable 3.9.10 (bottled)
==> Caveats
Python has been installed as
  /opt/homebrew/bin/python3

Unversioned symlinks `python`, `python-config`, `pip` etc. pointing to
`python3`, `python3-config`, `pip3` etc., respectively, have been installed into
  /opt/homebrew/opt/python@3.9/libexec/bin

See: https://docs.brew.sh/Homebrew-and-Python

    You could add this directory to your $PATH, such that python and pip become available; something like the following might suffice:

    echo 'export PATH="'"$(brew --prefix)"'/opt/python@3.9/libexec/bin:$PATH"' \
   >>~/.bash_profile

    ... although that will need to be modified according to your precise version of Python3, your shell of choice, etc.

  2. Alternatively and more simply, although a little more jankily, you could simply manually create the appropriate symlinks:

    ln -s "$(brew --prefix)/bin/python"{3,}
user_318970
user_185115900
  1. install python3
  2. run 'ln -s /usr/bin/python3 /usr/local/bin/python',Create a link to Python
user_56030550

just for me, add -f to be effective.

ln -s -f /usr/local/bin/python3 /usr/local/bin/python
user_146537550

For me the problem was with missing python env: python: No such file or directory

BUT in the end missing was python version 2.x after updating to macOS Monterey 12.5 (21G72). Problem was resolved by installing python from: https://www.python.org/downloads/release/python-2718/

What I've also tried but you probably don't have to do:

  • sudo brew install python
  • sudo brew upgrade
  • sudo ln -s -f /usr/local/bin/python3 /usr/local/bin/python
  • sudo ln -s $(which python3) /usr/local/bin/python
  • sudo ln -s $(which python3) /Applications/Xcode.app/Contents/Developer/usr/bin/python
  • sudo ln -s /Applications/Xcode.app/Contents/Developer/usr/bin/python3 /Applications/Xcode.app/Contents/Developer/usr/bin/python
user_75612200

This took me days of head scratching, and none of the solutions I found on the internet worked.

Eventually what DID work for me was this:

sudo ln -s /Applications/Xcode.app/Contents/Developer/usr/bin/python3 /Applications/Xcode.app/Contents/Developer/usr/bin/python

I used the find command to find all instances of python in the file hierarchy:

find / -name python*

and I saw that there was a symbolic link labelled python3 in /Applications/Xcode.app/Contents/Developer/usr/bin/ that was linked to a python instance deep within the bowels of Xcode.

However there was no symbolic link labelled python which seems to be what Xcode is looking for.

So I created a symbolic link linking python to python3 and that did the trick.

For what it's worth, I installed python via pyenv which I installed through homebrew on a 2020 Mac mini M1.

user_14587480

In my case, created symbolic link for dev_appserver.py like below.

ln -s /opt/local/bin/python2.7 /usr/local/bin/python
ln -s /opt/local/bin/python2.7 /usr/local/bin/python2

Command location and version should be adapted to your environment.

user_120029360
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