# Accessor: read nested dictionaries
Build accessor functions using the natural python dot notation.
# Installation
``python-accessor`` is available as a zero-dependency Python package. Install with:
$ pip install python-accessor
## Usage
```python
from accessor import accessor as _
name = _.users.name
name(obj) # equivalent of obj['users']['name']
```
## Examples
```python
from accessor import accessor as _
obj = {
'users': [{
'uid': 1234,
'name': {
'first': 'John',
'last': 'Smith',
}
}, {
'uid': 2345,
'name': {
'last': 'Bono'
}
}, {
'uid': 3456
}]
}
_.users[1].name(obj)
# -> {'last': 'Bono'}
_.users.name.last(obj)
# -> ['Smith', 'Bono', None]
_.users.name.first(obj)
# -> ['John', None, None]
_.users.name.first[:1](obj)
# -> ['John']
_.users.uid[:2](obj)
# -> [1234, 2345]
list(map(_.name.last, obj['users']))
# -> ['Smith', 'Bono', None]
list(filter(_.uid > 300, obj['users']))
# -> [{'uid': 3456}]
```
## More Examples! :)
```python
from accessor import accessor as _, select, values
# extract values
list(map(values(_.name.first, _.name.last), obj['users']))
# -> [('John', 'Smith'), (None, 'Bono'), (None, None)]
# extract as dicts
list(map(select(_.name.first, _.name.last),obj['users']))
# -> [{'first': 'John', 'last': 'Smith'}, {'first': None, 'last': 'Bono'}, {'first': None, 'last': None}]
# extract and optionally rename
list(map(select(_.name.uid, x=_.name.last),obj['users']))
# -> [{'uid': '1234', 'x': 'Smith'}, {'uid': 2345, 'x': 'Bono'}, {'uid': 3456, 'x': None}]
```
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"description": "# Accessor: read nested dictionaries\n\nBuild accessor functions using the natural python dot notation.\n\n# Installation\n\n``python-accessor`` is available as a zero-dependency Python package. Install with:\n\n $ pip install python-accessor\n\n\n## Usage\n\n```python\n\n from accessor import accessor as _\n\n name = _.users.name \n name(obj) # equivalent of obj['users']['name']\n```\n\n## Examples\n\n```python\n\nfrom accessor import accessor as _\n\nobj = {\n 'users': [{\n 'uid': 1234,\n 'name': {\n 'first': 'John',\n 'last': 'Smith',\n }\n }, {\n 'uid': 2345,\n 'name': {\n 'last': 'Bono'\n }\n }, {\n 'uid': 3456\n }]\n}\n\n_.users[1].name(obj)\n# -> {'last': 'Bono'}\n\n_.users.name.last(obj)\n# -> ['Smith', 'Bono', None]\n\n_.users.name.first(obj)\n# -> ['John', None, None]\n\n_.users.name.first[:1](obj)\n# -> ['John']\n\n_.users.uid[:2](obj)\n# -> [1234, 2345]\n\nlist(map(_.name.last, obj['users']))\n# -> ['Smith', 'Bono', None]\n\nlist(filter(_.uid > 300, obj['users']))\n# -> [{'uid': 3456}]\n```\n\n## More Examples! :)\n\n```python\n\nfrom accessor import accessor as _, select, values\n\n# extract values\nlist(map(values(_.name.first, _.name.last), obj['users']))\n# -> [('John', 'Smith'), (None, 'Bono'), (None, None)]\n\n# extract as dicts\nlist(map(select(_.name.first, _.name.last),obj['users']))\n# -> [{'first': 'John', 'last': 'Smith'}, {'first': None, 'last': 'Bono'}, {'first': None, 'last': None}]\n\n# extract and optionally rename\nlist(map(select(_.name.uid, x=_.name.last),obj['users']))\n# -> [{'uid': '1234', 'x': 'Smith'}, {'uid': 2345, 'x': 'Bono'}, {'uid': 3456, 'x': None}]\n\n```\n",
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