How do you inspect a function in Python?

How do you inspect a function in Python?

inspect is a built-in library. It’s already there after you install Python on your computer….inspect.

In [9]: def test(x): return x*2 print(inspect.getsource(test)) def test(x): return x*2
In [11]: print(inspect.getsourcelines(test)) ([‘def test(x):\n’, ‘ return x*2\n’], 1)

What is import inspect in Python?

The inspect module helps in checking the objects present in the code that we have written. As Python is an OOP language and all the code that is written is basically an interaction between these objects, hence the inspect module becomes very useful in inspecting certain modules or certain objects.

What is Python __ main __?

__main__ — Top-level code environment. In Python, the special name __main__ is used for two important constructs: the name of the top-level environment of the program, which can be checked using the __name__ == ‘__main__’ expression; and. the file in Python packages.

How do I view the source code in Python?

Double-clicking a . py script will execute the script (and may not send any useful results to the screen). To view the source you can open a . py file with IDLE (which comes with Python) or even Notepad although a more advanced text editor or IDE is recommended.

How do you print a function in Python?

Python print() Function The print() function prints the specified message to the screen, or other standard output device. The message can be a string, or any other object, the object will be converted into a string before written to the screen.

When should you use Hasattr OBJ name?

10. What is hasattr(obj,name) used for? Explanation: hasattr(obj,name) checks if an attribute exists or not and returns True or False.

How do you code a function in Python?

We use the getsource() method of inspect module to get the source code of the function. Returns the text of the source code for an object. The argument may be a module, class, method, function, traceback, frame, or code object. The source code is returned as a single string.

Why do we use __ init __ in Python?

The __init__ function is called every time an object is created from a class. The __init__ method lets the class initialize the object’s attributes and serves no other purpose. It is only used within classes.

What is if __ name __?

If you import this script as a module in another script, the __name__ is set to the name of the script/module. Python files can act as either reusable modules, or as standalone programs. if __name__ == “main”: is used to execute some code only if the file was run directly, and not imported.

Can you print functions in Python?

Print Function The Python print() function takes in any number of parameters, and prints them out on one line of text.

How do you print text variables in Python?

Python Print Variable

  1. Use the print Statement to Print a Variable in Python.
  2. Use a Comma , to Separate the Variables and Print Them.
  3. Use the String Formatting With the Help of %
  4. Use the String Formatting With the Help of {}
  5. Use the + Operator to Separate Variables in the print Statement.

Does Django have ATTR?

Python hasattr() The hasattr() method returns true if an object has the given named attribute and false if it does not. hasattr() is called by getattr() to check to see if AttributeError is to be raised or not.