flytekit.conditional#
- flytekit.conditional(name)[source]#
Use a conditional section to control the flow of a workflow. Conditional sections can only be used inside a workflow context. Outside of a workflow they will raise an Assertion.
The
conditional
method returns a new conditional section, that allows to create a - ternary operator like if-else clauses. The reason why it is called ternary-like is because, it returns the output of the branch result. So in-effect it is a functional style condition.Example of a condition usage. Note the nesting and the assignment to a LHS variable
v = ( conditional("fractions") .if_((my_input > 0.1) & (my_input < 1.0)) .then( conditional("inner_fractions") .if_(my_input < 0.5) .then(double(n=my_input)) .elif_((my_input > 0.5) & (my_input < 0.7)) .then(square(n=my_input)) .else_() .fail("Only <0.7 allowed") ) .elif_((my_input > 1.0) & (my_input < 10.0)) .then(square(n=my_input)) .else_() .then(double(n=my_input)) )
- Parameters:
name (str)
- Return type:
ConditionalSection