Skip to main content

Context data structure

Project description

vcontext
========

`vcontext` package provides single object `Context`.
Context is dictionary like datastructure with custom access to items.
You can access your data by dot access.
Context does not wrap data in itself, rather just access them. Context has `data` attribute where data is stored.

Let show an example:

context = Context({
'status': 200,
'message': 'OK',
'result': [
{
'user': {
'username': 'phonkee',
'name': 'Peter Vrba'
}
}
]
})

You can access data like this:

assert context['result.0.user.username'] == 'phonkee'
assert context['status'] == 200

Key can have multiple parts. Rules are following:
* string - access to dictionary key or object attribute
* integer - access to list item
* first part must be string (since Context is a dictionary

Context can also be used to build complicated datastructures with ease.
Lets build a structure from previous example:

context = Context()
context['status'] = 200
context['message'] = 'OK'
context['result.0.user.username'] = 'phonkee'
context['result.0.user.name'] = 'Peter Vrba'

assert context.data == {
'status': 200,
'message': 'OK',
'result': [
{
'user': {
'username': 'phonkee',
'name': 'Peter Vrba'
}
}
]
}

Context has also support for delete so let's assume that we use context from previous example:

del context['result.0']
assert len(context['result']) == 0

Isn't that neat small helper for your next projects?

keys
----

Context also supports `keys` method. By calling this method context traverses recursively object. It has support for
dict/list, for custom object it returns just the object key.

context = Context()
context['hello.world'] = 'yay'
assert context.keys() == ['hello.world'



Contribute
----------

Contributions are welcome, there are still a lot of parts to be enhanced.

Author
------

Peter Vrba (phonkee)

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

vcontext-0.5.1.tar.gz (4.4 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page