brownie | based development and testing framework | Blockchain library

by eth-brownie Python Version: v1.19.3 License: MIT

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | brownie Summary

brownie is a Python library typically used in Blockchain, Ethereum applications. brownie has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can install using 'pip install brownie' or download it from GitHub, PyPI.

Brownie is a Python-based development and testing framework for smart contracts targeting the Ethereum Virtual Machine.

Support

Quality

Security

License

Reuse

Support

brownie has a medium active ecosystem.

It has 2442 star(s) with 523 fork(s). There are 43 watchers for this library.

It had no major release in the last 12 months.

There are 336 open issues and 448 have been closed. On average issues are closed in 89 days. There are 69 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of brownie is v1.19.3

Quality

brownie has 0 bugs and 0 code smells.

Security

brownie has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

brownie code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

brownie is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

brownie releases are available to install and integrate.

Deployable package is available in PyPI.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

It has 21952 lines of code, 2163 functions and 225 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed brownie and discovered the below as its top functions. This is intended to give you an instant insight into brownie implemented functionality, and help decide if they suit your requirements.

Generates coverage data .
Expand the trace .
Create a contract from an address .
Parse a document .
Create a manifest file .
Publish source code .
Parse a docopt .
Make a transaction .
Generate build data .
Parse manifest .

Get all kandi verified functions for this library.

brownie Key Features

No Key Features are available at this moment for brownie.

brownie Examples and Code Snippets

Yearn Strategy Brownie Mix,Basic Use

Python

Lines of Code : 15

License : Strong Copyleft (AGPL-3.0)

Copy

$ brownie console

>>> vault = Vault.at("0xBFa4D8AA6d8a379aBFe7793399D3DdaCC5bBECBB")  # yvDAI (v0.2.2)
>>> token = Token.at("0x6b175474e89094c44da98b954eedeac495271d0f")  # DAI
>>> gov = "ychad.eth"  # ENS for Yearn Govern

Yearn Strategy Brownie Mix,Basic Use

Python

Lines of Code : 15

License : Strong Copyleft (AGPL-3.0)

Copy

$ brownie console

>>> vault = Vault.at("0xBFa4D8AA6d8a379aBFe7793399D3DdaCC5bBECBB")  # yvDAI (v0.2.2)
>>> token = Token.at("0x6b175474e89094c44da98b954eedeac495271d0f")  # DAI
>>> gov = "ychad.eth"  # ENS for Yearn Govern

brownie-token-tester,Quick Usage,ERC20

Python

Lines of Code : 8

License : Permissive (MIT)

Copy

def ERC20(
    name: str = "Test Token",
    symbol: str = "TST",
    decimals: int = 18,
    success: Union[bool, None] = True,
    fail: Union[bool, str, None] = "revert",
) -> Contract:

def _mint_for_testing(target: address, amount: uint256):

Community Discussions

Trending Discussions on brownie

Chain link AggregatorV2V3Interface Interface error?

Even though they are logically the same, why am I getting different outputs?

ContractNotFound: No contract deployed at 0x6

Pipx failed to build packages

PIP failed to build package cytoolz

Can't add Uniswap V2 Periphery as a package to Brownie

How do I interact with Uniswap V2 in a Truffle test suite?

How do I unpack tuple format in R?

smart contract with brownie gives VirtualMachineError

Problems connecting to Brownie/Rinkeby

QUESTION

Chain link AggregatorV2V3Interface Interface error?

Asked 2022-Apr-04 at 15:59

I'm following a Solidity tutorial that implements Chain Link's AggregatorV2V3Interface. An error is popping on VSCode 2 while compiling the code with the brownie compile command

Here is the error :

I'm very new to Solidity and still trying to figure out how that works.

...

ANSWER

Answered 2022-Apr-04 at 15:59

Changing the VSCode compiler to v0.6.6+ and setting FundMe.sol solidity version to pragma solidity ^0.6.6; is what worked for me

Source https://stackoverflow.com/questions/71709599

QUESTION

Even though they are logically the same, why am I getting different outputs?

Asked 2022-Apr-02 at 10:08

It's my first time asking a question here, so I apologize if the question has been repeated earlier.

This is my official solution for freeCodeCamp JS problem:

...

ANSWER

Answered 2022-Apr-02 at 10:08

They aren't logically the same.

Theirs is this:

Source https://stackoverflow.com/questions/71716579

QUESTION

ContractNotFound: No contract deployed at 0x6

Asked 2022-Mar-28 at 12:08

I restarted Ganache, and then when I ran the [brownie run scripts/deploy.py --network ganache-local] again, I got an error. However, it was a success before restarting.

How can I fix this error?

I tried deleting the old network and rebuilding a new one, but it didn't work.

...

ANSWER

Answered 2022-Mar-28 at 12:08

Ok, finally, I delete the build folder and re-compile-->> "brownie compile". The issue was done~

Source https://stackoverflow.com/questions/71572440

QUESTION

Pipx failed to build packages

Asked 2022-Mar-27 at 23:18

When I run the command pipx install eth-brownie I receive the following error message,

...

ANSWER

Answered 2021-Oct-27 at 18:10

I had the same problem, Use pip rather than pipx. command: pip install eth-brownie

Source https://stackoverflow.com/questions/69679343

QUESTION

PIP failed to build package cytoolz

Asked 2022-Mar-26 at 18:26

I'm trying to install eth-brownie using 'pipx install eth-brownie' but I get an error saying

...

ANSWER

Answered 2022-Jan-02 at 09:59

I used pip install eth-brownie and it worked fine, I didnt need to downgrade. Im new to this maybe I could be wrong but it worked fine with me.

Source https://stackoverflow.com/questions/69875694

QUESTION

Can't add Uniswap V2 Periphery as a package to Brownie

Asked 2022-Mar-25 at 20:15

I am following Brownie's documentation to add packages to my Solidity project. I have to add Uniswap/v2-core and Uniswap/v2-periphery. In order to do this I called the following lines in the terminal:

This one is working correctly, it installed the package

...

ANSWER

Answered 2021-Nov-23 at 12:54

A version of this was also asked on Stack Exchange ETH

You do exactly as you have here, you add the whole release string.

For example:

Source https://stackoverflow.com/questions/70070876

QUESTION

How do I interact with Uniswap V2 in a Truffle test suite?

Asked 2022-Mar-12 at 21:28

I am looking for a way to create an automated test suite with Truffle that can test my smart contract's interactions with Uniswap V2. The Uniswap docs briefly mention testing with Truffle but do not provide any examples. I am looking to test it using a mainnet fork with ganache.

I'm guessing it's a similar process to the accepted answer for this question, but I'm specifically looking for a way to do it using Truffle and web3.js.

As an example, if I were testing the following contract:

...

ANSWER

Answered 2022-Feb-12 at 12:48

If you use Uniswap platform to swap a token, you are going to have 2 steps. You are going to approve the token, in this step metamask will pop-up and you are going to confirm it. Then Uniswap will do the actual swap, it takes the tokens out of your wallet and does the exchange for you.

This is the swapExactETHForTokens function

Source https://stackoverflow.com/questions/70965282

QUESTION

How do I unpack tuple format in R?

Asked 2022-Mar-12 at 08:23

Here is the dataset.

...

ANSWER

Answered 2022-Mar-11 at 11:17

Here's a way using separate_rows:

Source https://stackoverflow.com/questions/71437352

QUESTION

smart contract with brownie gives VirtualMachineError

Asked 2022-Mar-10 at 06:42

I encontered a problem when I test my project, any help would be greatly appreciated. All my code can be found in here: https://github.com/Karlus44/smartcontract-lottery When I type the command brownie test my script tests/test_lottery_unit.py is exectuted, and my different tests are submitted. Here some quotes of my logout:

...

ANSWER

Answered 2022-Mar-10 at 06:38

If you're having a virtual machine check with your ganache port and IP in the settings of your Ethereum VM. If you're running brownie-compile and the code is working, then that's the issue.

Source https://stackoverflow.com/questions/71313598

QUESTION

Problems connecting to Brownie/Rinkeby

Asked 2022-Mar-07 at 23:59

I'm pretty new to this programming and maybe need more practice but I've been having problems trying to connect to the Rinkeby testnet and can't seem to see the problem (Windows 10, Powershell) not sure if it's the .env or how I set them up but I'll send the code or the respective files created with screenshots to see I someone could illuminate the problem. Copy pasted the code and some screenshots of the environment variables. Your help is very much appreciated. For some reason the export commands in the .env are seems as they are not executing(Third attachment).

Thank you

Error:

...

ANSWER

Answered 2022-Mar-07 at 18:51

config reads from brownie-config.yaml file which is in the root directory. make sure the location of the file is in root and its name is correct in the project.

Source https://stackoverflow.com/questions/71385097

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install brownie

You can install using 'pip install brownie' or download it from GitHub, PyPI.
You can use brownie like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

Brownie documentation is hosted at Read the Docs. If you have any questions about how to use Brownie, feel free to ask on Ethereum StackExchange or join us on Gitter.

Find more information at: