You can change the current active network using `with networks.parse_network_choice(“ethereum:local”):` or `with networks.parse_network_choice(“starknet:local”):`. This is not just limited to these two networks, you can change the current active network to any network plugin provider that you have available for your project. 

More information can be found [here](https://docs.apeworx.io/ape/stable/userguides/testing.html#multi-chain-testing)

How can I test on multi-chain with both Starknet and Ethereum?


ApeWorX: How can I test on multi-chain with both Starknet and Ethereum?

StarkNet is in Alpha. Cool.

But what will Beta mean? When should it be beta? Please tell me. Chose all options which are "MVB" or "minimum viable beta". 6 questions.

1. How much **throughput** do you need? ~15TPS like ETH, ~150 TPS, ~1k TPS?
2. On speed of transactions on mainnet: ~10ms, ~1ms, ~10s, ~1s block time what do you think?
3. On pace of releases of Cairo / StarkNet: 1 per month, 1 per 6 month, 1 per 12 month?
4. What do you think about volition and Data availability systems/providers?
- VO & DAL optional, 
- VO mandatory, single DAL
- VO mandatory, various DAL?
5. On cost: ~10% of Ethereum, ~1% of Ethereum, ~0.1% of Ethereum?
6. When do you expect to see beta? ~3, ~6, ~12 months?

**Based on this [Twitter's thread](https://twitter.com/henrlihenrli/status/1599788123092754432)**

What do you think about current StarkNet Alpha and future Beta? What will Beta mean? When should it be beta?

I’m just getting started and having problems installing the [Cairo](https://github.com/ApeWorX/ape-cairo) and [Starknet](https://github.com/ApeWorX/ape-starknet) plugins using the ape console. Why are the plugins not installed properly?

ApeWorX: Why are the cairo and starknet plugins not installing properly?

How do I connect my DAPP to Starknet testnet using starknetjs?

Why abi of warp compiled contract does not match original solidity abi?

How do I connect my DAPP to a private Starknet network using starknetjs?


As I understand it, `let` defines a reference, which can be seen as an alias, so for example `let x = y * y * y` doesn't compute `y * y * y` but the occurrences of `x` will be replaced by `y * y * y`.
Local variables are similar to other languages local variables.


As in <https://www.cairo-lang.org/docs/hello_cairo/dict.html>, what does it mean to write `let (local dict_start : DictAccess*) = alloc()`? That every instance of `local dict_start : DictAccess*` will be replaced by `alloc()`? Why not just `local (dict_start : DictAccess*) = alloc()` or `let (dict_start : DictAccess*) = alloc()`?



ㅤ
_This question was originally posted on [Stack Overflow](https://stackoverflow.com/questions/71738301/what-does-it-mean-to-declare-a-local-variable-inside-a-let)_

What does it mean to declare a 'local' variable inside a 'let'?

Hi. I am seeing this error in my tests after upgrade.

```
(starknet-py) JediSwap % protostar test tests/test_deployment.cairo 
17:59:05 [INFO] Collected 1 suite, and 3 test cases (0.062 s)                                                                                                    
[UNEXPECTED_EXCEPTION] tests/test_deployment.cairo                                                                                                               
Traceback (most recent call last):
  File "protostar/commands/test/test_runner.py", line 98, in run_test_suite
  File "protostar/commands/test/test_runner.py", line 155, in _build_execution_state
  File "protostar/commands/test/environments/setup_execution_environment.py", line 38, in execute
  File "protostar/starknet/execution_environment.py", line 32, in perform_execute
  File "starkware/starknet/testing/contract.py", line 293, in execute
  File "starkware/starknet/testing/contract.py", line 303, in _execute_on_given_state
  File "protostar/starknet/cheatable_state.py", line 97, in execute_entry_point_raw
  File "starkware/starknet/testing/state.py", line 241, in add_messages_and_events
  File "starkware/starknet/business_logic/execution/objects.py", line 337, in get_sorted_events
IndexError: list assignment index out of range
```

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Popular tags

ApeWorX: How can I test on multi-chain with both Starknet and Ethereum?

1 answers

Your answer

Related

You may find useful