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- DictionaryMain/mān/
adjective
- 1. chief in size or importance: "a main road"
noun
- 1. a principal pipe carrying water or gas to buildings, or taking sewage from them: "a faulty gas main"
- 2. the open ocean. archaic, literary
May 25, 2022 · python. main function. If you are just starting with Python, you might not be aware yet of the best practice of defining functions. In this guide, I’ll explain how including a main () function, though not required in Python, can structure your programs in a logical way and ensure that your functions are executed only when expected.
Here, we have created a custom main() function in the helloworld.py file. It is executed only when the program is run as a standalone script and not as an imported module. This is the standard way to explicitly define the main() function in Python. It is one of the most popular use cases of __name__ variable of a Python file. Also Read:
1. Defining Main Functions in Python: Overview. 2. Execution Modes in Python. 3. Best Practices for Python Main Functions. 4. Defining Main Functions in Python: Summary. Start Now. About Rich Bibby. Rich is an avid Pythonista and a video instructor at Real Python.
Jul 18, 2020 · It is important to define the main function in Python to start the execution of the program. The program does not get executed as a module; it has to be run directly. In this tutorial, we will understand what a main function in Python is and how it works.
Aug 3, 2022 · def main(): print("python main function") if __name__ == '__main__': main() When a python program is executed, python interpreter starts executing code inside it. It also sets few implicit variable values, one of them is __name__ whose value is set as __main__.
Thesaurus. See main in the Oxford Advanced Learner's Dictionary. Check pronunciation: main. Definition of main adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Aug 14, 2023 · def main(): print(“What about you?”) print(“I am fine”) Output: How are you? I am fine. Explanation. Observing the above program closely, one can see clearly that only ‘Good Morning’ and ‘Good Evening’ are printed, and the term ‘What about you?’ is not printed.
