In Python, variable names can be any length and can contain letters, digits, and underscores. They must start with a letter or an underscore, however. It is good practice to use descriptive variable names, so that it is easier to understand what the variable is used for in the program. Here are some examples of valid variable names in Python:
age = 25 _private = "private variable" current_temperature = 75.5
It is important to note that Python is case-sensitive, so it is possible to have two variables that have the same name but are distinguished by the use of uppercase and lowercase letters. For example,
Age are considered to be two different variables.
Also, there are some reserved words in Python that cannot be used as variable names. For example, you cannot use
class as variable names.