read (or split) the dictionaries that are in a list in a .txt file

Question

I dont know how to read (or split) each dictionary of the .txt file

I have a database(list) that have dictionaries. Each of this dictionaries have the caracteristics of a person(name, age , etc...) I have the class person and want to put all this atributes to and objets.

I dont know how to read (or split) each dictionary of the .txt file

this is an example of the database that i have:

[ { "idolos": [], "nombre": "Juan Lopez", "clave": "m6j0NI", "ramos_pre": [], "alumno": "NO", "usuario": "jlopez" }, { "idolos": [], "nombre": "Paulina Toro", "clave": "KaEEkNjFz", "ramos_pre": [], "alumno": "NO", "usuario": "ptoro" }]

pd: I cant use any library

Your data seems to be in JSON format. Could you indicate why you can't use any library? (because this would be pretty simple using the `json` module.) — DrNightmare, Aug 28 '15 at 05:09
I can use any library because i'm doing a homework and one of the conditions of this was to not use any library — Tomas Villanueva, Aug 28 '15 at 12:19

score 0 · Answer 1 · edited May 23 '17 at 12:22

0

You can simply use eval:

s = '[ { "idolos": [], "nombre": "Juan Lopez", "clave": "m6j0NI", "ramos_pre": [], "alumno": "NO", "usuario": "jlopez" }, { "idolos": [], "nombre": "Paulina Toro", "clave": "KaEEkNjFz", "ramos_pre": [], "alumno": "NO", "usuario": "ptoro" }]'
d = eval(s)

Then d is a list of dictionaries. You can access each item as usual:

print d[0]

Output:

{'usuario': 'jlopez', 'alumno': 'NO', 'clave': 'm6j0NI', 'idolos': [], 'ramos_pre': [], 'nombre': 'Juan Lopez'}

Edit: If you can use python standard libraries, look into the ast module, as I did in this answer.

edited May 23 '17 at 12:22

Community

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answered Aug 28 '15 at 05:11

Falko

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Don't use eval use `ast` module eval method – The6thSense Aug 28 '15 at 05:12
@VigneshKalai: Not sure if the OP is allowed to use it. – Falko Aug 28 '15 at 05:14
@Vignesh - Falko ->Can we treat this as some complex data structure as "list of dictionaries" and do operation on it ? – Dinesh Pundkar Aug 28 '15 at 05:17
But using `eval` is [dangerous](http://stackoverflow.com/questions/1832940/is-using-eval-in-python-a-bad-practice) – The6thSense Aug 28 '15 at 05:19
@DineshPundkar isn't this a `list of dictionaries` could you provide a sample of what you are thinking – The6thSense Aug 28 '15 at 05:22
@Vignesh - Answered above. Since , the users can't use any library, so I was thinking about doing some operations with available ones. – Dinesh Pundkar Aug 28 '15 at 05:29
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@DineshPundkar can't get you – The6thSense Aug 28 '15 at 05:35

read (or split) the dictionaries that are in a list in a .txt file

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