how can I remove dashes from my list python-CodePudding

I have this list [('[]',), ("['843997058062483456', '774956001223770122', '645597259458674707']",), ('[]',), ('[]',)] and I want to turn it to [[], ['843997058062483456', '774956001223770122', '645597259458674707'], [], []]

Any idea?

CodePudding user response：

import json
original = [('[]',), ("['843997058062483456', '774956001223770122', '645597259458674707']",), ('[]',), ('[]',)]
def transform(lst):
  return [json.loads(t[0].replace("'", '"')) for t in lst]

print(transform(original))

CodePudding user response：

You could use ast.literal_eval in a nested list comprehension:

>>> from ast import literal_eval
>>> xs = [('[]',), ("['843997058062483456', '774956001223770122', '645597259458674707']",), ('[]',), ('[]',)]
>>> extracted = [literal_eval(s) for t in xs for s in t]
>>> extracted
[[], ['843997058062483456', '774956001223770122', '645597259458674707'], [], []]