execute a function inside another function-CodePudding

I have this configuration file (test_conf.txt):

[function]
exptime1 = |def foo(f):
           |    result=float(f['a'])
           |    return result

and this code that works without problem

c = configparser.ConfigParser()
c.read('test_conf.txt')
e1 = compile(c['function']['exptime1'].replace('|', ''), '', 'exec')
exec(e1)
f = {'a':2, 'b':'3'}
print(foo(f))

nevertheless, when I put this inside another function:

def run():
    c = configparser.ConfigParser()
    c.read('test_conf.txt')
    e1 = compile(c['function']['exptime1'].replace('|', ''), '', 'exec')
    f = {'a':2, 'b':'3'}
    exec(e1)
    print(foo(f))

I have this error:

NameError: name foo is not defined

using dir() the function foo is in the NameSpace but somehow it is not recognized

CodePudding user response：

Let me reproduce your problem without any config parser.

common section

e1 = '''def foo(f):
    result = float(f['a'])
    return result
'''

f = {'a': 2, 'b': '3'}

working

exec(e1)
print(foo(f))
#outputs 2.0

not working

def run():
    exec(e1)
    print(foo(f))

run()
NameError: name foo is not defined

I got same output by exec(e1,globals()). ref

disclamation

I'm not sure how it works, but it does work for your current problem.

CodePudding user response：

ok from a related question on the right of the question here I could solve the problem with

locals()['foo'](f)