How-to articles, tricks, and solutions about PYTHON

You can use the datetime module in Python to get the day of the week for a given date.

To get the filename without the extension from a file path in Python, you can use the os.path.splitext() function.

You can use the os module to get the full path of the current file's directory.

To get the last element of a list, you can use negative indexing.

To get the number of elements in a list in Python, you can use the len() function.

You can use the shape property of the DataFrame to get the number of rows and columns.

To get the time it takes for a Python program to execute, you can use the time module.

To import a Python file, you can use the import statement.

To install a Python package with a .whl file, you can use the pip command.

To install pip on macOS or OS X, you need to use the Terminal.

You can use the zip() function to iterate through two lists in parallel.

In Python, you can use the os module to list all files in a directory.

You can use the lower() method to lowercase a string in Python.

To create a flat list out of a list of lists, you can use the itertools.chain function from the itertools module in the Python standard library.

There are several ways to add a delay to your Python program.

Function decorators allow you to wrap a function in another function.

There are several ways to measure elapsed time in Python.

You can use the update() method of one dictionary to merge the key-value pairs from another dictionary into it.

You can use the zfill() method to pad a string with zeros on the left side.

To parse a string to a float or int in Python, you can use the float() and int() functions, respectively.

You can use the datetime.fromisoformat() method to parse an ISO 8601-formatted date in Python.

In Python, you can pass a variable by reference by using the & operator.

You can print an exception in Python by using the print() function and passing the exc variable which is the default variable name for an exception.

You can use the termcolor module to print colored text to the terminal in Python.

To print a curly brace character in a string that is being formatted with the .format() method, you will need to use double curly braces to escape the character.