@JonB
I removed Pythonista and reinstall it.
Then install stash.
(install with this code : import requests as r; exec(r.get('https://bit.ly/get-stash').content) )
Then I did what I wrote just before.
Now I tried again as below;
But there is error.
~/Documents]$ stashconf py_traceback 1
[~/Documents]$ pip install requests
Querying PyPI ...
Downloading package ...
Opening: https://files.pythonhosted.org/packages/2d/61/08076519c80041bc0ffa1a8af0cbd3bf3e2b62af10435d269a9d0f40564d/requests-2.27.1-py2.py3-none-any.whl
Save as: /private/var/mobile/Containers/Data/Application/47FC53DC-CAB6-4B6B-B50F-7EE750FCBB79/tmp//requests-2.27.1-py2.py3-none-any.whl (63133 bytes)
[====================] 100.00% | 61.7KiB
Installing wheel: requests-2.27.1-py2.py3-none-any.whl...
Warning: unknown dependency requirement: 'sys_platform'
Warning: Adding dependency 'win-inet-pton', ignoring requirements for dependency.
Package installed: requests
Installing dependency: urllib3[('<', '1.27'), ('>=', '1.21.1')] (required by: requests)
Querying PyPI ...
Downloading package ...
Opening: https://files.pythonhosted.org/packages/ec/03/062e6444ce4baf1eac17a6a0ebfe36bb1ad05e1df0e20b110de59c278498/urllib3-1.26.9-py2.py3-none-any.whl
Save as: /private/var/mobile/Containers/Data/Application/47FC53DC-CAB6-4B6B-B50F-7EE750FCBB79/tmp//urllib3-1.26.9-py2.py3-none-any.whl (138990 bytes)
[====================] 100.00% | 135.7KiB
Installing wheel: urllib3-1.26.9-py2.py3-none-any.whl...
Warning: unknown dependency requirement: 'os_name'
Warning: Adding dependency 'brotlicffi (>=0.8.0)', ignoring requirements for dependency.
Warning: unknown dependency requirement: 'os_name'
Warning: Adding dependency 'brotli (>=1.0.9)', ignoring requirements for dependency.
Warning: unknown dependency requirement: 'os_name'
Warning: Adding dependency 'brotlipy (>=0.6.0)', ignoring requirements for dependency.
Package installed: urllib3
Installing dependency: brotlicffi[('>=', '0.8.0')] (required by: urllib3)
Querying PyPI ...
Downloading package ...
Opening: https://files.pythonhosted.org/packages/d3/d8/6acbb65e350213ad6bd96180593fad0a269a3baa845c67fed21adee3959d/brotlicffi-1.0.9.2.tar.gz
Save as: /private/var/mobile/Containers/Data/Application/47FC53DC-CAB6-4B6B-B50F-7EE750FCBB79/tmp//brotlicffi-1.0.9.2.tar.gz (440077 bytes)
[====================] 100.00% | 429.8KiB
Extracting archive file ...
Archive extracted.
Running setup file ...
Package installed: brotlicffi
Installing dependency: cffi[('>=', '1.0.0')] (required by: brotlicffi)
Querying PyPI ...
Downloading package ...
Opening: https://files.pythonhosted.org/packages/00/9e/92de7e1217ccc3d5f352ba21e52398372525765b2e0c4530e6eb2ba9282a/cffi-1.15.0.tar.gz
Save as: /private/var/mobile/Containers/Data/Application/47FC53DC-CAB6-4B6B-B50F-7EE750FCBB79/tmp//cffi-1.15.0.tar.gz (484058 bytes)
[====================] 100.00% | 472.7KiB
Extracting archive file ...
Archive extracted.
Running setup file ...
PermissionError(1, 'Operation not permitted')
Failed to run setup.py
Fall back to directory guessing ...
Package installed: cffi
Installing dependency: enum34;python_version[('<', "'3.4'")] (required by: brotlicffi)
Querying PyPI ...
Error: Failed to fetch package release urls