Parse address to string in smartPy

Question

Can we parse a varialble of type sp.TAddress to sp.TString like this:

strAddress = sp.string(sp.address("tz1-add")) or strAddress = str(sp.address("tz1-add"))?

Smart Contract Example:

import smartpy as sp

class SmartContract(sp.Contract):
    def init(self):
        self.init(fromAddress = "")

    @sp.entry_point
    def transferEvent(self, params):
        self.data.fromAddress = sp.string(params.fromAddress)

if "templates" not in name:
    @sp.add_test(name = "Smart Contract")
    def test():

        c1 = SmartContract()

        scenario = sp.test_scenario()
        scenario += c1

        scenario.h1("Smart Contract")
        scenario += c1.transferEvent(strAddress = sp.address("tz1MFYTrMMhh7QBq8NRP6QMU2gcrcGhjSTrv"))


        scenario.verify(c1.data.fromAddress == "tz1MFYTrMMhh7QBq8NRP6QMU2gcrcGhjSTrv")

As Error I get:

Error: Error in Scenario Literal format error: (string(attr(params 8)fromAddress 9)) Traceback (most recent call last):

Thanks.

Answer 1

No, you can't. Addresses are not convertible to strings in Michelson (short of really cheating with internals).

That being said, the error message could be a bit more explicit.

Also, what is your use case? The general understanding is that this operation is useless.