Retrieving values

Since values are stored as Node objects, object retrieval will look something like this:
PYNDatabase.Node.Node.val

val is a variable which contains the value of the Node, and is linked to the original dictionary object.

To dynamically retrieve a Node, you can use the get method. The get method is also the only way to retrieve values which contain characters not in the alphabet (+the underscore character).

This way, you can avoid writing code like this:

eval(f'PYNDatabase.Node.{name_of_node}.Node.val')

Command Usage:

PYNDatabase.get(*names)

PYNDatabase.Node.get(*names)

If there is only 1 name given, the function will return a Node object. Otherwise, it will return a tuple of Nodes.

Examples:

Static value retrieval

from pyndb import PYNDatabase
db = PYNDatabse('filename.pyndb')
db.set('hello', 'world')
print(db.hello.val) # <--

Dynamically retrieving a value

from pyndb import PYNDatabase
db = PYNDatabse('filename.pyndb')
db.set('123', 456)  # Note that the value type doesn't matter

# These will work...
print(db.get('123').val)
# OR
node_name = 'helloworld'
print(db.get(node_name).val)
# OR
node_names = ['helloworld', 'test']
print(db.get(*node_names)[0].val)  # Displays the value of the first Node returned


# But these will not.
print(db.123.val)
# OR
node_names = ['helloworld', 'test']
print(db.get(*node_names).val)  # Why doesn't this work?
# Because the object returned is a tuple, not a Node!

Storing a Node inside a variable is also a great option!

from pyndb import PYNDatabase
db = PYNDatabse('filename.pyndb')
db.set('hello', 'world')
hello = db.hello # <--
print(hello.val)