Additional useful operations for Python

Last update: Dec 14, 2022

Related tags

Miscellaneous pytealext

Overview

Pyteal Extensions

Additional useful operations for Python

Available Operations

MulDiv64: calculate m1*m2/d with no overflow on multiplication (TEAL 3+)
Min, Max: calculate minimum/maximum of 2 expressions, without using slots or evaluating arguments more than once (TEAL 4+)
LazyAnd, LazyOr: lazily evaluate arguments in And/Or operation

State manipulation

GlobalState and LocalState allow for manipulating global and local state respectively. They both have the same interface.

from pyteal import App, Bytes, Int, Seq, TealType
from pytealext import LocalState

user_counter = LocalState("UC", TealType.uint64)
program = Seq(
    # increment using pyteal local state
    App.localPut(Int(0), Bytes("UC"), App.localGet(Int(0), Bytes("UC")) + Int(1)),
    # increment using put/get
    user_counter.put(user_counter.get() + Int(1)),
    # increment using add_assign
    user_counter.add_assign(Int(1))
    # decrement
    user_counter.sub_assign(Int(1))
)

Example usage

Example usage for LazyAnd:

from pyteal import Gtxn, TxnType, Bytes, Int
from pytealext import LazyAnd

# Evaluate fields of some transaction but don't panic if an argument down the line would panic
validation = LazyAnd(
    Gtxn[0].type_enum() == TxnType.ApplicationCall,
    Gtxn[0].application_args.length() == Int(1),
    Gtxn[0].application_args[0] == Bytes("AX"),
)

Installation

pip install pytealext

Testing

pytest

Created by Łukasz Ptak and Paweł Rejkowicz

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Comments

Fix require_type usage to match new pyteal

Fix to changes in pyteal -> https://github.com/algorand/pyteal/commit/a9c42e307e548cc2e6a1fa8b38149e240ec07ceb

I wondering if support for pyteal <= 0.9.1 should be dropped as it's done in this PR

opened by Sernikjamnika 1

Releases(3.0.0)

3.0.0(Dec 23, 2022)
What's Changed

feat: allow string inputs to eval_teal by @StylishTriangles in https://github.com/ulamlabs/pytealext/pull/19

perf!: Huge improvement in MulDiv64 with TEAL >=6 by @StylishTriangles in https://github.com/ulamlabs/pytealext/pull/17

BREAKING: Generated TEAL for MulDiv64 will be different when using TEAL version >= 6. The error on division overflow will be different. Functionality is the same.

Full Changelog: https://github.com/ulamlabs/pytealext/compare/2.9.0...3.0.0
Source code(tar.gz)
Source code(zip)
2.9.0(Sep 15, 2022)
What's Changed

Saturation math (SaturatingAdd, SaturatingSub) by @StylishTriangles in https://github.com/ulamlabs/pytealext/pull/16

Full Changelog: https://github.com/ulamlabs/pytealext/compare/2.8.0...2.9.0
Source code(tar.gz)
Source code(zip)
2.8.0(Aug 18, 2022)
feat: evaluate TEAL that uses template expressions by @StylishTriangles in https://github.com/ulamlabs/pytealext/pull/14

feat: replace2 and replace3 opcodes added to evaluator by @StylishTriangles in https://github.com/ulamlabs/pytealext/pull/15

Full Changelog: https://github.com/ulamlabs/pytealext/compare/2.7.0...2.8.0
Source code(tar.gz)
Source code(zip)
2.7.0(Aug 9, 2022)
Fast multiplication of two integers with Mul128 (avoids conversion to bytes to use BytesMul)

Fast exponentiation by squaring FastExp which raises a uint64 value to a given power (returning bytes)

Source code(tar.gz)
Source code(zip)
2.6.1(Aug 5, 2022)
Fix broken import from pyteal.errors

Source code(tar.gz)
Source code(zip)
2.6.0(Jul 21, 2022)
Check if the state variable with the specific key exists in app's schema

Type hinting for state arrays

app_*_get_ex opcodes support in evaluator

Source code(tar.gz)
Source code(zip)
2.1.0(Mar 3, 2022)
Added Inner application calls

Added inner group transactions

Source code(tar.gz)
Source code(zip)
2.0.4(Feb 28, 2022)

Added support for PyTEAL 0.10.0
Source code(tar.gz)
Source code(zip)
2.0.0(Feb 2, 2022)

Breaking change: EvalContext parameters were converted to keyword-only parameters.
Source code(tar.gz)
Source code(zip)
1.2.0(Nov 9, 2021)
Improvements to eval_teal

MulDiv64 now always checks if the result has overflown

Source code(tar.gz)
Source code(zip)
pytealext-1.2.0-py3-none-any.whl(25.36 KB)
1.1.1(Nov 5, 2021)

Added option for MulDiv64 to calculate ceiling of the equation rather than the floor
Source code(tar.gz)
Source code(zip)
pytealext-1.1.1-py3-none-any.whl(23.86 KB)
1.1.0(Oct 4, 2021)
Added convenience wrappers for inner transactions:

MakeInnerPaymentTxn

MakeInnerAssetTransferTxn

MakeInnerAssetFreezeTxn

MakeInnerAssetConfigTxn

And a universal: MakeInnerTxn

Source code(tar.gz)
Source code(zip)
pytealext-1.1.0-py3-none-any.whl(21.84 KB)
1.0.1(Sep 22, 2021)

Source code(tar.gz)
Source code(zip)
pytealext-1.0.1-py3-none-any.whl(18.58 KB)
pytealext-1.0.1.tar.gz(16.76 KB)
1.0.0(Sep 20, 2021)

Muldiv64, Min, Max, LazyAnd, LazyOr

Easier state manipulations with LocalState and GlobalState
Source code(tar.gz)
Source code(zip)
pytealext-1.0.0-py3-none-any.whl(18.53 KB)
pytealext-1.0.0.tar.gz(16.69 KB)

Owner

Ulam Labs

Ulam Labs specialises in development of web and mobile applications, deployed in the cloud.

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Additional useful operations for Python

Related tags

Overview

Pyteal Extensions

Available Operations

State manipulation

Example usage

Installation

Testing

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