Pin cryptography to 3.3.2

Is your feature request related to a problem? Please describe. Yesterday an update to cryptography was released which adds rust as a dependency for building it. This breaks compatibility with many systems and pip versions. I’m encountering an error when running az devops login:

Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-cdqmxaug/cryptography/setup.py", line 14, in <module>
        from setuptools_rust import RustExtension
    ModuleNotFoundError: No module named 'setuptools_rust'
Cleaning up...
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-cdqmxaug/cryptography/
Exception information:
Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/commands/install.py", line 346, in run
    requirement_set.prepare_files(finder)
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/req/req_set.py", line 381, in prepare_files
    ignore_dependencies=self.ignore_dependencies))
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/req/req_set.py", line 637, in _prepare_file
    abstract_dist.prep_for_dist()
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/req/req_set.py", line 130, in prep_for_dist
    self.req_to_install.run_egg_info()
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/req/req_install.py", line 439, in run_egg_info
    command_desc='python setup.py egg_info')
  File "/usr/lib64/az/lib/python3.6/site-packages/pip/utils/__init__.py", line 717, in call_subprocess
    % (command_desc, proc.returncode, cwd))
pip.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-cdqmxaug/cryptography/

Describe the solution you’d like Cryptography should be pinned to 3.3.2 to give people time to fix their pip version. For example, I’m using the installation script from the documentation shown here - Install Azure CLI Linux which no longer works because python3-pip 9.0.3-8.el7 is not compatible.

Describe alternatives you’ve considered Upgrade pip

Additional context https://github.com/pyca/cryptography/issues/5753 https://github.com/pyca/cryptography/issues/5771

[amansahni1]

Here is how I worked around the issue.

1. Upgraded the pip to the latest version
2. Installed the cryptography==3.3.2

You might be able to get away doing number 2. I have done that anyway.

[finlaysawyer]

On CentOS 7, Upgrading pip directly into the az installation seems to fix this for the time being… I can then run az devops login etc without issue

python3 -m pip install --upgrade pip --target /usr/lib64/az/lib/python3.6/site-packages/