将字符串列表转换为int元组列表

Question

I have a list:

['(128, 134)', '(134, 146)', '(134, 150)', '(137, 143)', '(137, 146)', '(137, 150)', '(143, 150)']

I want to turn into a list of tuples of ints so this list will become:

[(128, 134), (134, 146), (134, 150), (137, 143), (137, 146), (137, 150), (143, 150)]

Answer 1

>>> import ast
>>> L = ['(128, 134)', '(134, 146)', '(134, 150)', '(137, 143)', '(137, 146)', '(137, 150)', '(143, 150)']
>>> [ast.literal_eval(s) for s in L]
[(128, 134), (134, 146), (134, 150), (137, 143), (137, 146), (137, 150), (143, 150)]

Answer 2

You can use literal_eval from the ast module which will safely evaluate a string as a Python expression.

>>> a = ['(128, 134)', '(134, 146)', '(134, 150)', '(137, 143)', '(137, 146)', '(137, 150)', '(143, 150)']
>>> from ast import literal_eval
>>> map(literal_eval, a)
[(128, 134), (134, 146), (134, 150), (137, 143), (137, 146), (137, 150), (143, 150)]

Answer 3

def to_tuple(x):
    ints = x.strip('()').split()
    return tuple(int(m.strip(',')) for m in ints)

print [to_tuple(a) for a in aa] # where aa is your string

Answer 4

import re
l=['(128, 134)', '(134, 146)', '(134, 150)', '(137, 143)', '(137, 146)', '(137, 150)', '(143, 150)']
t = [ tuple(map (int, re.findall("\d+", v))) for v in l ] 
print t

Answer 5

>>> L = ['(128, 134)', '(134, 146)', '(134, 150)', '(137, 143)', '(137, 146)', '(137, 150)', '(143, 150)']
>>> [tuple(map(int, s.strip('()').split(', '))) for s in L]
[(128, 134), (134, 146), (134, 150), (137, 143), (137, 146), (137, 150), (143, 150)]

Answer 6

只是评估会做

[eval(i) for i in a]