How-to articles, tricks, and solutions about PYTHON

You can use the sys.getsizeof() function to determine the size of an object in bytes.

urllib, urllib2, and urllib3 are all Python standard library modules for handling URLs.

Pip is generally preferred over easy_install because it offers a number of features that easy_install does not, including better package management and more user-friendly command options.

You can use the numpy library's arange() function to specify a decimal step value for the range.

In pandas, you can use the str.cat() function to combine the values of two columns of text into a single column.

In Python, you can use the datetime module to work with dates and times.

In Python, you can use regular expressions to extract numbers from a string.

To parse a YAML file in Python, you can use the yaml library.

There are several ways to remove duplicates from a list while preserving order.

Lambdas, also known as anonymous functions, are useful in Python because they allow you to create small, one-time use functions without having to define them with a full function statement.

Here is an example of how to parse boolean values with argparse in Python:

You can use the type() function in Python to check the type of a variable.

Here is an example of a Python function that can be used to detect peaks in a 2D array:

__pycache__ is a directory that is created by the Python interpreter when it imports a module.

Here is a code snippet for multiprocessing in Python:

You can use the os.path.abspath() function to get the absolute file path of a file in Python.

The os.makedirs() function in Python can be used to create a directory with the -p option, which will create the entire directory path, including any missing parent directories.

One way to make a Python script standalone executable is by using the package pyinstaller.

In Python, you can use the sys.path.append() method to add the parent directory to the list of paths where Python looks for modules.

You can use the reversed() function to iterate through a list in reverse order.

In Python, variable and function names should be lowercase, with words separated by underscores.

You can use the list method pop(index) to remove the first item in a list.

You can use the requests library in Python to send a POST request with JSON data.

In Python, you can use the built-in function attribute __name__ to get the name of a function as a string.

In Python, the increment operator (++) and decrement operator (--) do not exist.