PR: Fix listing envs in the Consoles' environment menu (IPython console)

[ccordoba12]

Description of Changes

• Don't show the installers base env and different entries for the same env in that menu.
• Make action for default env create a default console.
• Ignore some useless cryptography warnings at startup.
• Add test for is_conda_based_app because that's a critical function now.
• Resolve symlink to Python interpreter when Spyder is running under our Mac app.
• I noticed most of these errors while testing the Linux installer for rc2.

Visual changes

Before

After

Issue(s) Resolved

Fixes #

Affirmation

By submitting this Pull Request or typing my (user)name below,
I affirm the Developer Certificate of Origin
with respect to all commits and content included in this PR,
and understand I am releasing the same under Spyder's MIT (Expat) license.

I certify the above statement is true and correct: @ccordoba12

[ccordoba12]

@mrclary, could you check that this PR fixes the problem I mentioned in the OP for the Windows and Mac installers?

For that you only need to copy/paste spyder/utils/conda.py and spyder/plugins/maininterpreter/container.py to the rc2 installer.

[mrclary]

So I confirm that the spyder-6 base environment is removed, but the runtime environment shows up as either "Internal / Custom: Contents (Python 3.11.9)" if another environment is the default, or "Default / Custom: Contents (Python 3.11.9)" if the runtime environment is the default.

I believe this is because on macOS the runtime sys.executable is Spyder.app/Contents/MacOS/python (which is a symlink to the conda runtime python). So in this specific case we may want to resolve the link. I know, in general, for the environment list in the Preferences, we do not want to resolve the .../python executable links.

[ccordoba12]

So I confirm that the spyder-6 base environment is removed, but the runtime environment shows up as either "Internal / Custom: Contents (Python 3.11.9)" if another environment is the default, or "Default / Custom: Contents (Python 3.11.9)" if the runtime environment is the default.

Ok, this doesn't look good and thanks for mentioning it. I can make the necessary adjustments to show a better name for that env.

What name do you propose? I think Spyder.app or simply App would do the job, right?

Edit: Sorry, it should simply be Conda: spyder-runtime, right?

[mrclary]

Edit: Sorry, it should simply be Conda: spyder-runtime, right?

That is correct. I recommend the following changes:
ccordoba12#47
spyder-ide/spyder-kernels#499

[ccordoba12]

@mrclary, this should be ready now, right?

[mrclary]

Looks good to me. Thanks @ccordoba12!

[mrclary]

@ccordoba12, do you want to rebase before merging or just merge?

[ccordoba12]

I'll merge because I already squash-merged your PR.