How-to articles, tricks, and solutions about PYTHON
In Python, dictionaries are unordered collections of key-value pairs.
There are many hidden features of Python, some of which are not well-known even among experienced Python programmers.
There are a few ways to check which version of Python is running your script.
In Python, there are several ways to format strings.
If you are using Selenium with the Firefox web browser and you see the error message "Geckodriver executable needs to be in PATH," it means that the Selenium Python library cannot find the geckodriver executable on your system.
There are a few different ways to concatenate two lists in Python without modifying either one.
To find an element in a list, you can use the in keyword.
To convert floats to integers in Pandas, you can use the astype() function.
There are several ways to stop a Python script from running:
To use the multiprocessing.pool.map() function with multiple arguments, you will need to use the starmap() method instead.
You can use the cv2.imread() function to read an image into memory, and then use the cv2.rectangle() function to draw a rectangle around the region you want to crop.
This error is usually caused when you try to access an element in a list using a string as the index, rather than an integer.
There are several reasons why you might see the SyntaxError: invalid syntax error in a line with apparently valid syntax.
To create a new DataFrame with a subset of columns from an existing DataFrame, you can use the pandas library.
To run one Python file from another, you can use the exec function or the subprocess module.
To find where Python is installed on Windows, you can follow these steps:
To calculate the number of days between two dates, you can use the timedelta class from the datetime module.
There are several ways to apply a function to every element of a numpy array, and the most efficient method will depend on the size and shape of the array, as well as the complexity of the function.
To serve static files in Flask, you will need to use the send_static_file method in your route function.
Relative imports in Python 3 allow you to import modules or functions from other packages within your package hierarchy.
The SyntaxError: unexpected EOF while parsing error is raised when the Python interpreter reaches the end of the file (EOF) while it is still parsing the file, and it is unable to complete the parsing process because of an error in the syntax of the code.
setup.py is a Python script used to build and install Python packages.
To import a module from a relative path in Python, you can use the importlib.import_module() function from the importlib module.
To activate a virtual environment in Linux, you can use the source command and the path to the activate script that is located in the virtual environment's bin directory.