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Python dictionary objects do not allow accessing of values with dot notation

Documenting this because it's the kind of frustrating mistake to solve that could drive someone away from Python entirely, yet it'll be a mistake i'll probably never make again and would be able to solve in seconds if i do.

A dictionary, or 'dict', must be accessed with bracket notation. Unlike JavaScript, dot notation is not an option for dicts.

This works:

    from activore.models import MassEmail
    email_data = request.get_json()
    email = MassEmail(
        message = email_data['message'],
        subject = email_data['subject'],
        status = email_data['status'],
        senderid = 2,
        venueid = 1

This does not:

    email = MassEmail(
        message = email_data.message,
        subject = email_data.subject,
        status = email_data.status,
        senderid = 2,
        venueid = 1

Getting JSON from the request returns a dict. Unlike other objects its attributes cannot be accessed with object.attributekey, but only with dict['attributekey'].

Though it's possible to dress up the dict to allow dot notation, it's not any particular benefit. It's just a matter of knowing why your simple dot isn't working.

Searched words: 
AttributeError: 'dict' object has no attribute 'message' dict dot notation versus brackets dict object no attribute given name AttributeError array-style notation


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