Learn how to use Python's if __name__ == "__main__" idiom to control code execution. Discover its purpose, mechanics, best practices, and when to use or avoid it. This tutorial explores its role in managing script behavior and module imports for clean an
numpy.reshape(): In this tutorial, we will learn about the numpy.reshape() method, and what does -1 mean in this method.ByPranit SharmaLast updated : May 23, 2023 NumPyis an abbreviated form of Numerical Python. It is used for different types of scientific operations in python. Numpy is...
Python code to demonstrate the use of [:, :] in NumPy arrays # Import numpyimportnumpyasnp# Creating a numpy arrayarr=np.zeros((3,3))# Display original imageprint("Original Array:\n",arr,"\n")# working on all rows but a specific columnarr[1, :]=3# Display resultprint("Result:...
Python module Python __import__ Python class What does __all__ mean in Python? - Stack OverflowBashir Alam He is a Computer Science graduate from the University of Central Asia, currently employed as a full-time Machine Learning Engineer at uExel. His expertise lies in Python, Java, Machin...
How to find the index of an item in a List in Python How to access the index in a for loop in Python How to check if a file or directory exists in Python How to remove elements in a Python List while looping What does if __name__ == "__main__" do?
Suppose you have two Python files: main_script.py and module_example.py. Contents of module_example.py: def say_hello(): print("Hello from module_example!") print("__name__ in module_example:", __name__) if __name__ == '__main__': print("This code is executed only when ...
Snippets Python What does __all__ mean in Python?What does __all__ mean in Python?In Python, __all__ is a list of strings that defines the names that should be imported when from <module> import * is used. For example: __all__ = ['foo', 'bar'] def foo(): pass def bar(...
While some of the examples you see below may not be WTFs in the truest sense, but they'll reveal some of the interesting parts of Python that you might be unaware of. I find it a nice way to learn the internals of a programming language, and I believe that you'll find it ...
In Python 2, the print statement did not require parentheses. Here's an example of code that will raise this error in Python 3: print 'Hello, world!' Copy To fix this error, you need to add the parentheses when calling the print() function: print('Hello, world!') Try i...
This could be cross-entropy for classification tasks, mean squared error for regression, etc. Choose an optimizer and set hyperparameters like learning rate and batch size. After this, train the modified model using your task-specific dataset. As you train, the model’s parameters are adjusted ...