In Behave, for python How to call a scenario from other scenarios present in separate feature files? i.e. In Feature1.feature file Scenario1 Feature2.scenario2 Feature3.scenario3
Calling scenarios from scenarios is not supported by Gherkin and thus not possible.
What you can do is call a strep implementation from another step. Calling steps from another step is, however, an anti-pattern and not a good idea. It will lead you down a bad path.
What you want to do is to call a helper method from both step implementations. I.e. move the desired functionality from a step to a common helper method and use that functionality from both steps.