Create a variable from a value stored in a variable in python

Question

In python I have:

var = "abc"

How can I create a dictionary of name abc using var ?

to make the question more clear, could you give us a dictionary that you seek ? — Harman, Feb 10 '15 at 04:58

taskinoor · Answer 1 · 2015-02-10T05:14:22.790

2

globals() method returns a dictionary that contains all the names of global scope. You can use this to create a variable whose name is stored in another variable. Something like this:

>>> var = 'abc'
>>> globals()
{'__builtins__': <module '__builtin__' (built-in)>, '__name__': '__main__', 'var': 'abc', '__doc__': None, '__package__': None}
>>> globals()[var] = {}
>>> abc
{}
>>> globals()
{'abc': {}, '__builtins__': <module '__builtin__' (built-in)>, '__package__': None, 'var': 'abc', '__name__': '__main__', '__doc__': None}
>>> abc['p0'] = 2
>>> abc
{'p0': 2}
>>>

edited Feb 10 '15 at 05:14

answered Feb 10 '15 at 05:03

taskinoor

45,586
12
116
142

locals() is the safer choise if used in a scope. – Iskren Feb 10 '15 at 09:38
1

@Iskren I originally mentioned `locals()` but later found that it has problem as specified here: http://stackoverflow.com/a/8028772/377953 – taskinoor Feb 10 '15 at 09:55

score 0 · Answer 2 · answered Feb 10 '15 at 05:02

0

What do you mean? Assign var to a dictionary where 'name' evaluates to 'abc'? In that case,

var = {'name': 'abc'}

Otherwise, I have no idea what you're asking.

answered Feb 10 '15 at 05:02

robobrobro

320
2
6

Create a variable from a value stored in a variable in python

2 Answers2