Add Test Environment that runs tests w/out aiohttp

[scbedd]

@seankane-msft

This is related to this issue.

Can you poke holes in my logic? We don't really have anything to key off to identify one of these "optional" requirements that may or may not be present. So it's not really a case of extending create_package_and_install.py to identify additional requirements.

To solve this generically without messing with anyone's day-to-day development, I created a new tox environment whl_no_aio. This is essentially a retread of whl (aka the default) tox environment. The only difference is that have an error-ignored line (notice the leading -) that attempts uninstall of aiohttp prior to invoking any of the install or test commands.

[scbedd]

Not having this means that async tests implode with

[seankane-msft]

Within the create_package_and_install.py file, can we add a flag for this toxenv where we add a clause like the following to verify that the uninstallation was successful:

try:
    import aiohttp
    raise Exception("aiohttp was not successfully installed") 
except ImportError:
    pass

[scbedd]

I see what you're going after here. I'll add something like it.

[scbedd]

@seankane-msft added!

[seankane-msft]

[scbedd]

/azp run python - core - ci

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