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`CashBuyingPowerModel`, which reflected on `AlphaStreamBrokerageModel`, a margin-only brokerage.
It also didn't consider the account type, so `InteractiveBrokersBrokerageModel` was using the margin model even if `AccountType.Cash` was selected.
Removes `GetBuyingPowerModel` method from other Brokerage Models when their cases are covered by `DefaultBrokerageModel`
Fixes some typoes in `TradierBrokerageModel`
Fixes unit and regression tests. For the regression tests, we have explicitly set the brokerage model.
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* Python research import improvements
- Improve start.py for research env
- Remove unrequired imports
* Centralize algorithm imports
* Add regression test GH action
* Unit test python import clean up
* Join research and main imports
* More python import clean up
* Fix failing skipped regression algorithm
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* Apply changes from #2146 on current master
Credit for most of these changes goes to https://github.com/viliwonka.
Rebasing three years of changes didn't go so well, so I manually
applied the changes in #2146 on the current master branch.
This commit attempts to represent the changes in #2146 as closely as
possible, no cleanup has been performed yet. Despite this, some changes
were inevitable because part of #2146 has been implemented another way
in the past three years.
* Clean up
* Process review comments
* Add tests
* symbol -> potentialConversionRateSymbol
* Ensure regression tests run/get data
* Fix broken test
* Process review comments
* Process review comments
* Simplify currency conversion logic
* Performance improvement, doc updates and test rename
* Rebase fixes
* Remove obsolete properties
Co-authored-by: Martin-Molinero <martin@quantconnect.com>
Ashutosh