python based learning (xiv)

28. When the script execution module

　　 ! ! ! ! Note that this is a two documents is student.py and app3.py

student.py

name = "Song Ke"

NAME_LIST = [ " Joe Smith " , " John Doe " , " Wang Wu " ]


def who_am_i(myName):
    print(f'my name is : {myName}')


class Student:
    def __init__(self, name, age, sex):
        self.__name = name
        self.__age = age
        self.__sex = sex

    def who_am_i(self):
        print(f'i am a student , {self.__name}, {self.__age}, {self.__sex}')

run results:

 

Now add in student.py

print(name)
print(name_list)

run results:

 

 Then open app3.py input

import student

run of results app3.py

 

 

To student.py can run out, app.py output is empty can be added as follows student.py:

if (__name__ == "__main__"):

Again run student.py:

 

 Then run app3.py

 

 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

app3.py input

import student

print (dir ())
 print (you (student))


print(__name__)
print(student.__name__)

run results: there are two __name__ then print out __name__ result app3.py this is __main__ ||||| student.py is a student

 

 Back to student.py input

print(__name__)

run result: The student is __main__