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[ethPM] Update deployments to work when only abi available #1417



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@njgheorghita njgheorghita commented Aug 9, 2019

What was wrong?

Currently ethpm.deployments.get_instance() generates a contract factory for each deployment. This will break if manifest does not contain deployment_bytecode for the corresponding contract type. It doesn't seem reasonable to expect a manifest to know the deployment bytecode for every deployment (for example, manifests generated from etherscan uris will have a deployments without deployment bytecode).

ethpm.deployments.get_instance() was updated to generate contract instances rather than factories for each deployment, requiring only the necessary abi data to successfully construct a contract instance.

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@njgheorghita njgheorghita requested a review from pipermerriam Aug 9, 2019
@njgheorghita njgheorghita merged commit 01380b5 into ethereum:master Aug 10, 2019
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@njgheorghita njgheorghita deleted the ethpm-deployments-refactor branch Aug 10, 2019
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