将我想转换的字符串列表转换为元组列表

Question

i have a list of strings that i would like to convert to a list of tuples. Below is an example.

['(0, "ass\'")', "(-1, '\\n       print self.amount')", "(0, '\\n\\n  ')"]

to be converted to.

[(0, "ass\'"), (-1, '\\n       print self.amount'), (0, '\\n\\n  ')]

any ideas?

Answer 1

[ast.literal_eval(x) for x in L]

Answer 2

map(ast.literal_eval, list_of_tuple_strings)

与eval不同，ast.literal_eval将仅评估文字，而不评估函数调用，因此更加安全。

Answer 3

The function eval is what you need I think, but be careful with its use:

>>> l = ['(0, "ass\'")', "(-1, '\\n       print self.amount')", "(0, '\\n\\n  ')"]

>>> map(eval, l)
[(0, "ass'"), (-1, '\n       print self.amount'), (0, '\n\n  ')]