Which of the following is true for variable names in Python?Optionsall private members must have leading and trailing underscoresunlimited lengthunderscore and ampersand are the only two special characters allowednone of the mentioned
Question
Which of the following is true for variable names in Python?Optionsall private members must have leading and trailing underscoresunlimited lengthunderscore and ampersand are the only two special characters allowednone of the mentioned
Solution
The correct answer is "none of the mentioned".
In Python, variable names can be of any length and they can contain both letters and numbers, but they cannot start with a number. They can also contain underscores. However, they cannot contain special characters like an ampersand (&).
Private members (variables or methods) in Python start with a double underscore (__), but they do not need to end with double underscores. Only special methods (like init or str) have leading and trailing double underscores.
So, none of the options mentioned in the question are entirely correct.
Similar Questions
Which of the following statements about variable names is true?Select one:a.A valid variable name can be up to 40 characters in length.b.A valid variable name can start with a number and end with a number.c.A valid variable name may consist of letters, digits, and the underscore (_) character.d.A valid variable name may contain uppercase letters, which are no different than lowercase letters.
Select the correct answerWhy are local variable names beginning with an underscore discouraged?Optionsthey are used to indicate a private variables of a classthey slow down executionthey are used to indicate global variablesthey confuse the interpreter
Why are local variable names beginning with an underscore discouraged?Optionsthey are used to indicate a private variables of a classthey confuse the interpreterthey are used to indicate global variablesthey slow down execution
Which of the following statement is False?Variable names can be arbitrarily long.They can contain both letters and numbers.Variable name can begin with underscore.Variable name can begin with number.
What is the convention in Python for naming a private variable in a class?Starting its name with an underscore ().Ending its name with an underscore ().Starting its name with two underscores ().Ending its name with two underscores ().
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