python - Whether eval() better than self-analysis? -

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here situation, have string follows

'a':1 'b':2 'c':3

i want turn dict, have 2 options:

  1. split string ' ' , ':' put pairs dict.

  2. replace ' ' ',', append '{', , '}' string , use eval() dict.

so question 1 faster?

i this:

import ast result = ast.literal_eval(''.join(["{", s.replace(" ", ", "), "}"]))

you can (although difference may negligible):

import ast result = ast.literal_eval("{" + s.replace(" ", ", ") + "}")

it's better use ast.literal_eval it's safer purpose using eval().


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