# Development Standards

### Python3 <a href="#python" id="python"></a>

#### Dependency management <a href="#dependency-management" id="dependency-management"></a>

* We are using [poetry](https://python-poetry.org/) as a dependency management and virtual environment tool

#### Logging <a href="#logging" id="logging"></a>

* Use the [built in logging module](https://docs.python.org/3/library/logging.html) for logging over `print()` for big projects.
* For debugging print also uses the logging module, example:

```
import logging

logger = logging.getLogger(__name__)

logger.debug("debug message")
logger.info("info message")
logger.error("error message")
logger.warning("warning message")

try:
    ...
except Exception as e:
    logger.exception(e)
```

### Rust <a href="#python" id="python"></a>

* TBA

### Database and ORM <a href="#database-and-orm" id="database-and-orm"></a>

#### **SQL**

* [Sqlalchemy](https://www.sqlalchemy.org/) or [Flask-SQLAlchemy](https://flask-sqlalchemy.readthedocs.io/en/stable/) (if used with flask)

### HTTP Requests and Tooling

Use [httpx](https://www.python-httpx.org/) instead of [requests](https://pypi.org/project/requests/). Note some services might only allow HTTP2.

### Javascript/Typescript <a href="#javascripttypescript" id="javascripttypescript"></a>

#### Dependency management <a href="#dependency-managementdf02d40c" id="dependency-managementdf02d40c"></a>

We are using [pnpm](https://pnpm.io/) (not npm) as a dependency management tool

**Optional Advice**

Use NestJs for backend if you willing to put in some time for learning. It has some learning curve, but it is a very rewarding framework and is becomming an industry standart.

### Cryptography and Hashing

We use Blake3 for hashing and Polkadot cryptography libraries (for now).


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