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Python:converting string to objects

Say I have an file describing a graph in a format like this:

Directional:True
Simplicity:True
{
    1:[2,3]
    2:[1,3]
}

and I have a graph class defined like below:

class Graph:

def __init__(self,directional = False,simple=True,Filename=None):
    self.adjacencyList = {}
    self.directional = directional
    self.simple = simple
    if not Filename:
        _readFile(Filename)

Is there anyway to convert this file to this class easily . I know I can write a function to read from the file line by line and do the thing myself. But since python is a highly developed language is there any easy way to do it?

Thanks in advance.

No, since the file doesn't adhere to any standard/popular format. It's close to YAML, but not close enough for direct parsing.

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