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How to Convert an Image to Grayscale with Python
The most optimal way to convert any input image into grayscale is using the OpenCV library’s cv2.cvtColor() method. First, you…
How to Convert JSON to Dictionary in Python
If the input is a string, you can easily convert it to JSON using the json.loads() method, and if your…
How to Check If Variable is None or Not None in Python
The idiomatic way to check if a variable is None in Python is to use the “is” operator. The Pythonic…
How to Comment Out a Block of Code in Python
To comment out a block of code in Python, prepend each line with a # (octothorpe) or enclose the block…
Numpy.nan (np.nan) in Python
The numpy.nan (np.nan) is a special floating-point constant defined by the IEEE 754 standard representing a missing or undefined numerical…
How to Delete a Variable in Python
Python does not have a direct command or function like “unset” to remove a variable from memory or its current…
Double (Float) Data Type in Python
Python does not have a built-in double data type, but it does have a float type, which designates a floating-point…
How to Write Bytes to a File in Python
To write bytes to a file, use ‘wb’ mode to write bytes to a new file (overwrites if the file…
How to List All Functions in Python Module
To print all functions of a specific module in Python, you can either use the inspect module or the dir() built-in…
How to Get File Size in Python (4 Ways)
The file size is the number of bytes a file occupies in the file system. You can either retrieve it…
