How do you convert a string to a function in python?

Question

如何将字符串（例如，来自文本框的输入）转换为适当的函数？

Answer 1

You can use eval . But be very careful! This opens up lots of security holes.

>>> s = '3+4'
>>> eval(s)
7

If you want it callable:

>>> s = '3+4'
>>> f = eval('lambda: ' + s)
>>> f()
7

More information on eval here .

Answer 2

try this

func = ___import___('func_name')

or

if hasattr(your_module, func_name): func = getattr(your_module, func_name)

or

if func_name in globals(): func = globals[func_name]

or something etc

Answer 3

def func():
    print "hello"

# just eval it
eval(raw_input())

# if you just want to ask for name
fName=raw_input()
if fName in globals():
    globals()[fName]()

And there could be various other ways depending on what is the objective?