datapackage-registry 0.4.0

[](https://coveralls.io/github/okfn/datapackage-registry-py?branch=master)

datapackage-registry-py
=======================

A Python library for working with a Data Package Registry.

The default registry backend is currently located at:
<https://rawgit.com/dataprotocols/registry/master/registry.csv>

Usage
-----

```python
import datapackage_registry

# get the default registry objects
registry = datapackage_registry.Registry()

# see the available profiles in the registry
print(registry.available_profiles)
# {
# 'base': {
# 'id': 'base',
# 'schema': 'https://rawgit.com/dataprotocols/schemas/master/data-package.json',
# 'specification': 'http://dataprotocols.org/data-packages',
# 'title': 'Data Package'
# },
# 'tabular': {
# 'id': 'tabular',
# 'schema': 'https://rawgit.com/dataprotocols/schemas/master/tabular-data-package.json',
# 'specification': 'http://dataprotocols.org/tabular-data-package/',
# 'title': 'Tabular Data Package'
# }
# }

# get a profile by its id
base_profile = registry.get('base')
```

If you’d like to use a custom registry, you can pass its URL or local
path to the `Registry()` constructor, as in:

```python
import datapackage_registry

registry = datapackage_registry.Registry('http://someplace.com/my-registry.csv')
```

If you’d like to get a schema that's not in the registry, you can pass its URL
or local path to `Registry().get_external()` method, as in:

```python
import datapackage_registry
registry = datapackage_registry.Registry()

try:
schema = registry.get_external('http://someplace.com/schema.json')
except datapackage_registry.exceptions.DataPackageRegistryException:
pass # handle error
```

Developer notes
---------------

These notes are intended to help people that want to contribute to this
package itself. If you just want to use it, you can safely ignore this.

### Updating the local schemas cache

We cache the schemas from <https://github.com/dataprotocols/schemas>
using git-subtree. To update it, use:

git subtree pull --prefix datapackage_registry/schemas https://github.com/dataprotocols/schemas.git master --squash