在 python 中使用 globals() 动态创建 function

Question

I am trying to call a dynamic method created using exec() , after calling globals() it is considering params as fixture and returning error as fixture 'Template_SI' not found.

can someone help on how to pass dynamic parameters using globals()function_name(params)

import pytest 
import input_csv

datalist = input_csv.csvdata()


def display():
    return 10 + 5


for data in datalist:
    functionname = data['TCID']
    parameters = [data['Template_name'], data['File_Type']]
    body = 'print(display())'


    def createfunc(name, *params, code):
        exec('''
@pytest.mark.regression
def {}({}):
    {}'''.format(name, ', '.join(params), code), globals(), globals())


    createfunc(functionname, data['Template_name'], data['File_Type'], code=body)
    templateName = data['Template_name']
    fileType = data['File_Type']
    globals()[functionname](templateName, fileType)

Answer 1

It looks like you're trying to automate the generation of lots of different tests based on different input data. If that's the case, using exec is probably not the best way to go.

pytest provides parameterized tests: https://docs.pytest.org/en/6.2.x/example/parametrize.html

which accomplish test generation by hiding all the details inside Metafunc.parameterize() .

If you really want to generate the tests yourself, consider adapting Metafunc to your own purposes. Or, alternatively, checking the unittest framework.