Converting a list of strings to ints (or doubles) in Python

问题

I have a lots of list of strings that look similar to this:

list = ['4', '-5', '5.763', '6.423', '-5', '-6.77', '10']

I want to convert it to a list of ints (or doubles) but the - keeps producing an error.

回答1:

>>> lst = ['4', '-5', '5.763', '6.423', '-5', '-6.77', '10']
>>> map(float, lst)
[4.0, -5.0, 5.763, 6.423, -5.0, -6.77, 10.0]

And don't use list as a variable name

回答2:

>>> [float(x) for x in ['4', '-5', '5.763', '6.423', '-5', '-6.77', '10']]
[4.0, -5.0, 5.763, 6.423, -5.0, -6.77, 10.0]

回答3:

for Python 3:

listOfStrings = ['4', '-5', '5.763', '6.423', '-5', '-6.77', '10']
listOfFloats = list(map(float, listOfStrings))

来源：https://stackoverflow.com/questions/11722882/converting-a-list-of-strings-to-ints-or-doubles-in-python