Dependency 'Requests' Fails in Python 3.6

install.sh --install-python3 --venv で失敗を再現し、specs/default/chef/site-cookbooks/gridengine/recipes/scheduler.rb の526行目付近にある bash セットアップの cyclecloud-gridengine ブロックを調べる。Python 3.6 用にバンドルされた Requests 依存関係がどのように選択されるかを確認する。Python 3.6.8 でパッケージが正常にインストールされ、azge エントリーポイントが gridengine をインポートできれば完了とする。

I am attempting to use the cyclecloud-gridengine 2.0.13 release on a RHEL 7.9 scheduler VM. The yum python3 package version for this Linux distribution is 3.6.8. I am running into errors in the jetpack deployment process with Python dependencies. You can recreate the issue by running the install.sh line out of the bash 'setup cyclecloud-gridengine' block in the scheduler.rb recipe. Below is the error that was encountered in chef-client.log:

[2022-09-13T17:49:54+00:00] ERROR: bash[setup cyclecloud-gridengine] (gridengine::scheduler line 526) had an error: Mixlib::ShellOut::ShellCommandFailed: Expected process to exit with [0], but received '1'
---- Begin output of "bash"  "/tmp/chef-script20220913-26255-1e86596" ----
STDOUT: INSTALL_PYTHON3=1
INSTALL_VIRTUALENV=1
VENV=/opt/cycle/gridengine/venv
created virtual environment CPython3.6.8.final.0-64 in 346ms
  creator CPython3Posix(dest=/opt/cycle/gridengine/venv, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/.local/share/virtualenv)
    added seed packages: pip==21.3.1, setuptools==59.6.0, wheel==0.37.1
  activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator
Processing ./packages/certifi-2022.6.15-py3-none-any.whl
Processing ./packages/charset_normalizer-2.1.1-py3-none-any.whl
Processing ./packages/cyclecloud_api-8.0.1-py2.py3-none-any.whl
Processing ./packages/cyclecloud-gridengine-2.0.13.tar.gz
  Preparing metadata (setup.py): started
  Preparing metadata (setup.py): finished with status 'done'
Processing ./packages/cyclecloud-scalelib-0.1.7.tar.gz
  Preparing metadata (setup.py): started
  Preparing metadata (setup.py): finished with status 'done'
Processing ./packages/idna-3.3-py3-none-any.whl
Processing ./packages/immutabledict-1.0.0-py3-none-any.whl
Processing ./packages/importlib_metadata-3.6.0-py3-none-any.whl
Processing ./packages/jsonpickle-1.4.1-py2.py3-none-any.whl
Processing ./packages/requests-2.28.1-py3-none-any.whl
Processing ./packages/six-1.16.0-py2.py3-none-any.whl
Processing ./packages/typing_extensions-4.3.0-py3-none-any.whl
Processing ./packages/urllib3-1.26.12-py2.py3-none-any.whl
Processing ./packages/zipp-3.6.0-py3-none-any.whl
INFO: pip is looking at multiple versions of importlib-metadata to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of idna to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of jsonpickle to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of immutabledict to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of cyclecloud-scalelib to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of cyclecloud-gridengine to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of cyclecloud-api to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of charset-normalizer to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of <Python from Requires-Python> to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of certifi to determine which version is compatible with other requirements. This could take a while.
Traceback (most recent call last):
  File "/opt/cycle/gridengine/venv/bin/azge", line 4, in <module>
    from gridengine.cli import main
ModuleNotFoundError: No module named 'gridengine'
STDERR: + . /etc/cluster-setup.sh
++ SGE_ROOT=/sched/sge/sge-2011-11j
++ export SGE_ROOT
+++ /sched/sge/sge-2011-11j/util/arch
++ ARCH=linux-x64
+++ /sched/sge/sge-2011-11j/util/arch -m
++ DEFAULTMANPATH=/usr/share/man/overrides:/usr/share/man:/usr/local/share/man
+++ /sched/sge/sge-2011-11j/util/arch -mt
++ MANTYPE=man
++ SGE_CELL=default
++ export SGE_CELL
++ SGE_CLUSTER_NAME=grid1
++ export SGE_CLUSTER_NAME
++ SGE_QMASTER_PORT=537
++ export SGE_QMASTER_PORT
++ SGE_EXECD_PORT=538
++ export SGE_EXECD_PORT
++ '[' '' = '' ']'
++ MANPATH=/usr/share/man/overrides:/usr/share/man:/usr/local/share/man
++ MANPATH=/sched/sge/sge-2011-11j/man:/usr/share/man/overrides:/usr/share/man:/usr/local/share/man
++ export MANPATH
++ PATH=/sched/sge/sge-2011-11j/bin/linux-x64:/opt/cycle/jetpack/system/embedded/bin:/opt/cycle/jetpack/system/bin:/opt/cycle/jetpack/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
++ export PATH
++ case $ARCH in
++ unset ARCH DEFAULTMANPATH MANTYPE
+ cd /opt/cycle/jetpack/system/bootstrap/
+ rm -f cyclecloud-gridengine-pkg-2.0.13.tar.gz
+ jetpack download cyclecloud-gridengine-pkg-2.0.13.tar.gz --project gridengine ./
+ tar xzf cyclecloud-gridengine-pkg-2.0.13.tar.gz
+ cd cyclecloud-gridengine/
+ INSTALLDIR=/opt/cycle/gridengine
+ mkdir -p /opt/cycle/gridengine/venv
+ ./install.sh --install-python3 --venv /opt/cycle/gridengine/venv
ERROR: Package 'requests' requires a different Python: 3.6.8 not in '<4,>=3.7'
---- End output of "bash"  "/tmp/chef-script20220913-26255-1e86596" ----
Ran "bash"  "/tmp/chef-script20220913-26255-1e86596" returned 1
[2022-09-13T17:49:54+00:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)

My line 526 in scheduler.rb equates to line 488. I have added some logic higher up in the file to properly install epel-release for RHEL to fix the package install of jemalloc. The offending portion of the bash command is the install.sh. If you run that section at the command line you receive the same error:

./install.sh --install-python3 --venv $INSTALLDIR/venv
INSTALL_PYTHON3=1
INSTALL_VIRTUALENV=1
VENV=/opt/cycle/gridengine/venv
created virtual environment CPython3.6.8.final.0-64 in 1034ms
  creator CPython3Posix(dest=/opt/cycle/gridengine/venv, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/root/.local/share/virtualenv)
    added seed packages: pip==21.3.1, setuptools==59.6.0, wheel==0.37.1
  activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator
Processing ./packages/certifi-2022.6.15-py3-none-any.whl
Processing ./packages/charset_normalizer-2.1.1-py3-none-any.whl
Processing ./packages/cyclecloud_api-8.0.1-py2.py3-none-any.whl
Processing ./packages/cyclecloud-gridengine-2.0.13.tar.gz
  Preparing metadata (setup.py) ... done
Processing ./packages/cyclecloud-scalelib-0.1.7.tar.gz
  Preparing metadata (setup.py) ... done
Processing ./packages/idna-3.3-py3-none-any.whl
Processing ./packages/immutabledict-1.0.0-py3-none-any.whl
Processing ./packages/importlib_metadata-3.6.0-py3-none-any.whl
Processing ./packages/jsonpickle-1.4.1-py2.py3-none-any.whl
Processing ./packages/requests-2.28.1-py3-none-any.whl
Processing ./packages/six-1.16.0-py2.py3-none-any.whl
Processing ./packages/typing_extensions-4.3.0-py3-none-any.whl
Processing ./packages/urllib3-1.26.12-py2.py3-none-any.whl
Processing ./packages/zipp-3.6.0-py3-none-any.whl
INFO: pip is looking at multiple versions of importlib-metadata to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of idna to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of jsonpickle to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of immutabledict to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of cyclecloud-scalelib to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of cyclecloud-gridengine to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of cyclecloud-api to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of charset-normalizer to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of <Python from Requires-Python> to determine which version is compatible with other requirements. This could take a while.
INFO: pip is looking at multiple versions of certifi to determine which version is compatible with other requirements. This could take a while.
ERROR: Package 'requests' requires a different Python: 3.6.8 not in '<4,>=3.7'
Traceback (most recent call last):
  File "/opt/cycle/gridengine/venv/bin/azge", line 4, in <module>
    from gridengine.cli import main
ModuleNotFoundError: No module named 'gridengine'

I have opened requests-2.28.1-py3-none-any.whl inside the cyclecloud-gridengine-pkg-2.0.13.tar.gz and found that 2.28.1 does not support python 3.6. From the METADATA file:

Metadata-Version: 2.1
Name: requests
Version: 2.28.1
Summary: Python HTTP for Humans.
Home-page: https://requests.readthedocs.io
Author: Kenneth Reitz
Author-email: [email protected]
License: Apache 2.0
Project-URL: Documentation, https://requests.readthedocs.io
Project-URL: Source, https://github.com/psf/requests
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Web Environment
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Natural Language :: English
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Internet :: WWW/HTTP
Classifier: Topic :: Software Development :: Libraries
Requires-Python: >=3.7, <4
Description-Content-Type: text/markdown
License-File: LICENSE
Requires-Dist: charset-normalizer (<3,>=2)
Requires-Dist: idna (<4,>=2.5)
Requires-Dist: urllib3 (<1.27,>=1.21.1)
Requires-Dist: certifi (>=2017.4.17)
Provides-Extra: security
Provides-Extra: socks
Requires-Dist: PySocks (!=1.5.7,>=1.5.6) ; extra == 'socks'
Provides-Extra: use_chardet_on_py3
Requires-Dist: chardet (<6,>=3.0.2) ; extra == 'use_chardet_on_py3'

----------

Requests officially supports Python 3.7+.

From the requests github, python 3.6 support was dropped in release 2.28.0. Cyclecloud-gridengine 2.0.11 did not experience this problem as at the time the release package was built, requests was on version 2.26.0. When 2.0.13 was packaged as a fix for an autoscaling issue we experienced, requests version 2.28.1 was the latest available. I think one fix is to version pin the dependency for requests to <=2.27.1. Attached is a screen capture of the 2.0.11 package contents at left and the 2.0.13 contents at right.