'zsh: killed python' while executing from virtualenv on macOS Big Sur for Python 2.7

zsh: killed python while executing from virtualenv on macOS Big Sur (platform: arm64) for Python 2.7 It is working fine for Python 3.8

Expected result

Python Shell should launch from virtual env shell. On using pipenv sync should install dependencies.

Actual result

zsh: killed python. Python shell is not launched.

Steps to replicate

1. pipenv install --python 2.7
2. pipenv shell
3. python

Using /usr/bin/python2.7 (2.7.16) to create virtualenv...
⠴ Creating virtual environment...created virtual environment CPython2.7.16.final.0-64 in 216ms
  creator CPython2macOsFramework(dest=/Users/ab/.local/share/virtualenvs/demo2-HNdtbnRg, clear=False, global=False)
  seeder FromAppData(download=False, pip=bundle, wheel=bundle, setuptools=bundle, via=copy, app_data_dir=/Users/ab/Library/Application Support/virtualenv)
    added seed packages: pip==20.2.4, setuptools==44.1.1, wheel==0.35.1
  activators PythonActivator,CShellActivator,FishActivator,PowerShellActivator,BashActivator

✔ Successfully created virtual environment! 
Failed to load paths: 
Output: 
Virtualenv location: /Users/ab/.local/share/virtualenvs/demo2-HNdtbnRg
Installing dependencies from Pipfile.lock (3cbc06)...
  🐍   ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 0/0 — 00:00:00
To activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.
 demo2 % pipenv shell
Launching subshell in virtual environment...
 . /Users/ab/.local/share/virtualenvs/demo2-HNdtbnRg/bin/activate                         
demo2 %  . /Users/ab/.local/share/virtualenvs/demo2-HNdtbnRg/bin/activate
demo2 % python 
zsh: killed     python
demo2 % which python
/Users/ab/.local/share/virtualenvs/demo2-HNdtbnRg/bin/python

This works perfectly fine with if I use pipenv install --python 3.8 See details of platform and Python version below (skipped sys env variables)

$ pipenv --support

Pipenv version: '2020.8.13'

Pipenv location: '/Users/ab/Library/Python/2.7/lib/python/site-packages/pipenv'

Python location: '/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python'

Python installations found:

• 3.8.2: /usr/bin/python3
• 2.7.16: /usr/bin/python2.7
• 2.7.16: /usr/bin/python2

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '0',
 'os_name': 'posix',
 'platform_machine': 'arm64',
 'platform_python_implementation': 'CPython',
 'platform_release': '20.0.0',
 'platform_system': 'Darwin',
 'platform_version': 'Darwin Kernel Version 20.0.0: Fri Aug 14 00:25:08 PDT 2020; root:xnu-7195.40.44.151.1~4/RELEASE_ARM64_T8020',
 'python_full_version': '2.7.16',
 'python_version': '2.7',
 'sys_platform': 'darwin'}

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: /usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Users/ab/Library/Python/2.7/bin
• SHELL: /bin/zsh
• LANG: en_US.UTF-8

---

[lykhatskyi]

solution:

cd ~/.virtualenvs/<your venv name here>/bin
mkdir bk; cp python bk; mv -f bk/python .;rmdir bk
codesign -s - --preserve-metadata=identifier,entitlements,flags,runtime -f python

[ADVALAKI]

If you are on Apple M1, mac sure open terminal with Rosetta enabled. it will works fine.