SmartPy

04 January 2026 19:37

💡 Ju announces a $30 million AI-focused investment fund.
Backed by listed companies and industrial capital, aiming for real impact, not hype.

SmartPy

19 November 2025 23:10

Kennethwils Mchrraursobez has been banned! Reason: CAS ban.

SmartPy

26 October 2025 08:54

You're right, that's an error from our simulator. Sorry for that. I'll come back with a fix and a more elegant way of testing that.

Notice that it's only the test system that has a problem, the contracts will behave as expected on-chain.

I don't know if that's clear but setting a contract as the sender doesn't correspond to anything on-chain, that's more a convenient way of writing tests without plumbing the whole.

If you really want to test this way before the fix, you can have add an entrypoint to Wallet that calls MyContract.

SmartPy

25 October 2025 08:06

oh gotcha, thanks :)

SmartPy

25 October 2025 03:12

im trying to call sp.send and sp.transfer in auxiliary functions and i keep getting __operations__ is not defined.. how to fix this?

SmartPy

23 October 2025 18:16

Yes I mean I would expect smartpy to support all features of Tezos. Especially since some of them were supported in the past

SmartPy

23 October 2025 17:56

For example provide "if x in y" instead of "if y.contains(x)".
Also being more integrated with Python tools and services.
Also having a simpler interaction with the test scenarios.
There is no plan for metaprogramming.

SmartPy

23 October 2025 17:53

SmartPy will be available to use on TezLink.

SmartPy

23 October 2025 15:13

Hi, wondering if there is there any sort of public roadmap for smartpy? In general just what's next for smartpy

SmartPy

09 October 2025 09:44

hi guys I get conflicts when installing pytezos and smartpy-tezos (0.23.0) but not with tezos-smartpy (0.22). To reproduce:

this works:

python3.13 -m venv .venv && source .venv/bin/activate && pip install tezos-smartpy pytezos > /dev/null && python -c "import smartpy"

python3.13 -m venv .venv && source .venv/bin/activate && pip install smartpy-tezos pytezos > /dev/null && python -c "import smartpy"

Traceback (most recent call last):
  File "<string>", line 1, in <module>
    import smartpy
  File "/Users/timothy/projects/repro-test/.venv/lib/python3.13/site-packages/smartpy/__init__.py", line 47, in <module>
    init_runtime()
    ~~~~~~~~~~~~^^
  File "/Users/timothy/projects/repro-test/.venv/lib/python3.13/site-packages/smartpy/platform/runtime.py", line 202, in init_runtime
    _init_jupyter_standard()
    ~~~~~~~~~~~~~~~~~~~~~~^^
  File "/Users/timothy/projects/repro-test/.venv/lib/python3.13/site-packages/smartpy/platform/runtime.py", line 164, in _init_jupyter_standard
    js_content = get_wheel_file("jupyter-web-components.js")
  File "/Users/timothy/projects/repro-test/.venv/lib/python3.13/site-packages/smartpy/internal/utils.py", line 10, in get_wheel_file
    with open(file_path, "r") as file:
         ~~~~^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/Users/timothy/projects/repro-test/.venv/lib/python3.13/site-packages/smartpy/static/jupyter-web-components.js'
Uncaught exception:

  End_of_file

Raised at Stdlib.input_line.scan in file "stdlib.ml", line 456, characters 14-31
Called from Oasis_lib__Smartpy_oasis.loop in file "oasis/main/smartpy_oasis.ml", line 8, characters 7-19
Called from Oasis_lib__Smartpy_oasis.Main.main in file "oasis/main/smartpy_oasis.ml", line 16, characters 4-23
Called from Dune__exe__Smartpy_oasis_native in file "oasis/main/smartpy_oasis_native.ml", line 3, characters 8-58

SmartPy

08 October 2025 11:31

I can't get it to work even with the correct value. not even with this:

import smartpy as sp

@sp.module
def dummy_utils():
    def dummy_function(param) -> sp.nat:
        return sp.nat(1)
    
@sp.add_test()
def _():
    s = sp.test_scenario("simple assert")
    assert s.verify(dummy_utils.dummy_function(()) == sp.nat(1))

SmartPy

08 October 2025 11:22

That's because the invert bytes is not doing the reverse of bytes. See https://smartpy.tezos.com/manual/data-types/strings-and-bytes.html
The invert bytes of 0x1234 is 0xedcb
See https://smartpy.tezos.com/manual/data-types/strings-and-bytes.html

SmartPy

08 October 2025 11:14

Yes it is.
You have a parenthesis problem and you want to use s.verify or s.verify_equal:

import smartpy as sp

@sp.module
def dummy_utils():
    def dummy_function(param: sp.bytes) -> sp.bytes:
        return sp.invert_bytes(param)
    
@sp.add_test()
def _():
    s = sp.test_scenario("Hex to Ascii")
    assert s.verify(dummy_utils.dummy_function(sp.bytes("0x1234")) == sp.bytes("0x3412"))

SmartPy

06 October 2025 08:58

Thanks again @pifragile , we'll take a look

SmartPy

24 September 2025 08:52

ok, thanks for that, its a documentation bug I think

SmartPy

15 December 2025 10:32

🥳🎉Announcing - SmartPy alpha release v0.24.0a1 🎄☃️

https://releases.smartpy.io/0.24.0a1/

This is the alpha release for the next Tezos protocol update Tallinn.

New Features
* Added Tallinn as the default protocol,
* Updated to octez-client version 24.0-rc1,
* Added support for sp.index_address (implements Michelson instruction INDEX_ADDRESS),
* Added support for sp.get_address_index(implements Michelson instruction GET_ADDRESS_INDEX),
* Added a new Boolean effect with_index_address ,
* Added support for the Python in operation in contract code,
* Added support for shadownet ,
and more ...

Please see https://releases.smartpy.io/0.24.0a1/releases#v0-24-0a1 - also available as a Jupyter Notebook: https://releases.smartpy.io/0.24.0a1/experimental-notebook/lab/index.html?path=releases%2F0.24.ipynb.

🎄🎁❄️

SmartPy

31 October 2025 04:00

Lavette Dutod has been banned! Reason: CAS ban.

SmartPy

26 October 2025 03:30

i am trying to test balances of accounts interacting with contracts. below an example with comments. can you confirm that this is expected behavior and what is the reasoning behind that?
also, is there a more elegant and consistent way to test such behaviour using test accounts?

https://smartpy.io/ide?code=eJyVUlFLwzAQfu@vOLqHpTgKnW9CYXOILzpBhD2G2GYskKYxSZX6602aVBtXwR2UJpe7@7777hLWyFYZ0A1RRvZANGiZJBst86atO06Tmh6hIUyg7CYBaxUnWsNjv2uFUaQyyIaO5xDizKVhzAQzGCNN@XHy5kzaKsm3x@FRW6OXLRMGZVEZSfq5CrYAdcxl_ko4ERWFsnQ3Qz9Rka0gPTw_7e_x7fZhu9_dpf8EU_Sto9rMAdo0TUWNwp@q1Q9cFkUmE6UOhHP6l0obiLhETOxHOj7LZBDvHHAYG6lrbFwH2TA6f_TpuqKCKNZC0EkbPLrQ8sVel1kUl58KlFZF6r2EM6fxsAx56GryYjUxw7wZ4ThMBAV91kGfqhjzJ_sTY8JVacPOXAOE73IBAQXGuTMN65j4O1Xs2CNP7Hw9HB@vmGeVuxXDfqilT7IyKqr1CjBp2k6Y8teoF_Bx6kG0BorLoUfYcdlmoX_jXNbitcX5AgqwHaE-

SmartPy

25 October 2025 08:05

Hey there, sounds like you need to set the with_operations=True effects decorator:
https://smartpy.tezos.com/manual/data-types/effects.html

SmartPy

24 October 2025 14:12

📣 We have released a minor upgrade - SmartPy v0.23.1 📣

https://smartpy.tezos.com

This is a bugfix release which includes:

# Documentation
- Corrected the SmartPy documentation example for calling auxillary functions,
- Added SmartPy documentation for sp.to_bytes.

# Bug fixes
- Fixed match/case return type check - assert all cases are unit,
- Fixed frontend contract link share,
- Fixed frontend search bug,
- Fixed frontend origination/explorer page render problem,
- Fixed TZcomet link,
- Fixed import issue for installing when IPython is present.

Please see the release notes (https://smartpy.tezos.com/releases.html) for more details. 🚀🔥🎉

SmartPy

23 October 2025 18:00

Do you have things you'd want us to do? Are you expecting sapling, global constants or anything else?

SmartPy

23 October 2025 17:53

What about things like global constants, sapling etc? Closer alignment with python meaning brining back some meta programming capabilities? Also i feel compilation testing is quite awkward currently and in general to use it requires quite a bit of boilerplate.

SmartPy

23 October 2025 17:05

Hi, there is no public roadmap. At a high level, our focus for SmartPy will remain on closer alignment with Python, continued improvements to the developer experience, and maintaining alignment with the evolution of Tezos.

SmartPy

09 October 2025 09:55

You're right, do you mind adding this in /Users/timothy/projects/repro-test/.venv/lib/python3.13/site-packages/smartpy/static/ for now? We'll ship a fix latter.

SmartPy

08 October 2025 11:34

s.verify is already asserting, you don't need an assert. The error is not great, thank you for the report. Just remove the assert

SmartPy

08 October 2025 11:23

ohh that makes sense. was confused by the error message

SmartPy

08 October 2025 11:19

Traceback (most recent call last):
  File "/lib/python3.12/site-packages/smartpy/platform/runtime.py", line 137, in evalRun
    import main
  File "/home/pyodide/main.py", line 8, in <module>
    @sp.add_test()
  File "/lib/python3.12/site-packages/smartpy/public/scenario.py", line 423, in r
    f()
  File "/home/pyodide/main.py", line 11, in _
    assert s.verify(dummy_utils.dummy_function(sp.bytes("0x1234")) == sp.bytes("0x3412"))
  File "/lib/python3.12/site-packages/smartpy/public/scenario.py", line 270, in verify
    self.action(data)
  File "/lib/python3.12/site-packages/smartpy/public/scenario.py", line 227, in action
    return interact({"request": "scenario_action", "ix": self.ix, "action": x})
  File "/lib/python3.12/site-packages/smartpy/platform/services.py", line 150, in interact
    raise RuntimeException(**error["context"])
RuntimeException: (SmartPy)
  File "main.py", line 11, in <module>
    (source code not available)
Verification error: dummy_utils.dummy_function(sp.bytes('0x1234')) == sp.bytes('0x3412')

SmartPy

08 October 2025 11:11

Hi guys, is something like this possible:

import smartpy as sp

@sp.module
def dummy_utils():
    def dummy_function(param: sp.bytes) -> sp.bytes:
        return sp.invert_bytes(param)
    
@sp.add_test()
def _():
    s = sp.test_scenario("Hex to Ascii")
    assert s.compute(dummy_utils.dummy_function(sp.bytes("0x1234"))) == sp.bytes("0x3412")

SmartPy

04 October 2025 10:33

search seems broken
https://smartpy.tezos.com/

SmartPy

24 September 2025 08:51

ah ok thanks :)
no, copied as is
https://smartpy.tezos.com/manual/syntax/contracts.html#auxiliary-functions