caterva2.lazyexpr

caterva2.lazyexpr(name, expression, operands, urlbase='http://localhost:8002/', auth_cookie=None)

Create a lazy expression dataset in scratch space.

A dataset with the given name is created anew (or overwritten if already existing).

Parameters:

• name (str) – The name of the dataset to be created (without extension).

• expression (str) – The expression to be evaluated. It must result in a lazy expression.

• operands (dict) – A mapping of the variables used in the expression to the dataset paths that they refer to.

• urlbase (str) – The base of URLs (slash-terminated) of the subscriber to query.

• auth_cookie (str) – An optional HTTP cookie for authorizing access.

Returns:

The path of the created dataset.

Return type:

str