Rajendra Dharmkar has Published 547 Articles

How can we overload a Python function?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:55:19

In Python, you can define a method in such a way that there are multiple ways to call it. Depending on the function definition, it can be called with zero, one, two or more parameters. This is known as method overloading. . In the given code, there is a ... Read More

How to retrieve source code from Python objects?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:40:16

Using the inspect module, you can retrieve the source code of a Python function, method, class, or module. The following example demonstrates how to retrieve a function's source code: Example import inspect def my_function(x, y): return x + y source_code = inspect.getsource(my_function) print(source_code) ... Read More

How can we define a Python function at runtime?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:21:57

We can define a python function and execute it at runtime by importing the types module and using its function types.FunctionType() as follows This code works at the python prompt as shown. First we import the types module. Then we run the command dynf=…; then we call ... Read More

How to write recursive Python Function to find factorial?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:19:21

Factorial of a number is the product of all the positive integers from 1 to that number. For example, the factorial of 4 is 4*3*2*1 = 24. To find the factorial of a number using recursive Python function, we can define a function that calls itself with ... Read More

Are Python functions objects?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:18:20

Python creates function objects for you when you use a def statement, or when you use a lambda expression: We can assign attributes to the function object and retrieve them as follows Example def foo(): pass foo.score = 20 print(type(foo)) print(foo.score) print(type(lambda x:x)) Output ... Read More

How to remove all trailing whitespace of string in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:17:45

Any character or group of characters that depicts horizontal or vertical space is known as whitespace. A whitespace character usually takes up space on a page even though it does not correspond to any visible mark when it is rendered. Pressing the spacebar will allow you to enter a whitespace ... Read More

What is PYTHONPATH environment variable in Python?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:16:27

In Python, PYTHONPATH is an environment variable that specifies a list of directories to search for Python modules when importing them. When you import a module in Python, Python looks for the module in the directories specified in sys.path, which is a list of directories that includes the current working ... Read More

How to set Python environment variable PYTHONPATH on Linux?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:15:41

To set the PYTHONPATH environment variable on Linux, follow these steps: Open a terminal window on your Linux system. Determine the path to your Python module or package. For example, suppose you have a Python module named mymodule located in the /home/user/myproject folder. Set the PYTHONPATH environment variable to the ... Read More

How do I create a Python namespace?

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:14:10

In Python, a namespace is a container that holds a set of identifiers (such as variable names, function names, class names, etc.) and associates them with their corresponding objects. A namespace is essentially a mapping between names and objects. Namespaces are used to organise code, prevent naming conflicts, and provide ... Read More

Explain python namespace and scope of a variable.

Rajendra Dharmkar

Rajendra Dharmkar

Updated on 27-Mar-2023 18:09:24

In Python, a namespace is a mapping between names and objects. Namespaces are used to prevent naming conflicts and provide a way to organise code. The scope of a variable refers to the part of the code where the variable can be accessed. Understanding namespaces and variable scopes is important ... Read More

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