Method # 1: Using dictionary comprehension + split()
Dictionary comprehension can be used to build a dictionary, and the split function can be used to make the necessary splits in list to get a valid key-value pair for the dictionary.
| # Python3 demo code
# Converting a list string to a dictionary
# Using a dictionary comprehsion + split ()
# initialization string test_string = ’ [Nikhil: 1, Akshat: 2, Akash: 3] ’
# print original line < code class = "keyword"> print ( "The original string:" + str (test_string))
# using the comprehsion + split () dictionary
# Converting the list string to a dictionary res = {sub.split ( ":" ) [ 0 ]: sub.split ( ":" ) [ 1 ] for sub in test_string [ 1 : - 1 ]. split ( "," )}
# print result print ( "The dictionary after extraction is:" + str (res)) |
Output:
The original string: [Nikhil: 1, Akshat: 2, Akash: 3 ] The dictionary after extraction is: {’Nikhil’:’ 1’, ’Akash’:’ 3’, ’Akshat’:’ 2’} Method # 2: Using eval () + replace ()
This particular task can also be accomplished using a combination of the above two functions, the eval and replace functions. In this method, the eval function performs the functions of a dictionary, the dictionary construction and the replace function perform the necessary replacements. This function is used when keys and values must be converted to an integer.
| # Python3 demo code
# Converting the list string to a dictionary
# Using eval () + replace ()
# initialization string test_string = ’[120: 1, 190: 2, 140: 3]’
# print original line print ( "The original string:" + str (test_string))
# using eval () + replace ()
# Convert list lines to dictionary res = eval (test_string.replace ( "[" , "{" ). replace ( "]" , "} " ))
# print result print ( "The dictionary after extraction is:" + str (res)) |
Exit:
The original string: [120: 1, 190: 2, 140: 3] The dictionary after extraction is: {120: 1, 140: 3, 190: 2}
Python | Converting a list string to a dictionary __dict__: Questions
Python | Converting a list string to a dictionary Python functions: Questions
