Accenture Python Developer Interview Questions, Process, and Tips

Q1. Difference between list & tuple?
Ans. 
List is mutable, tuple is immutable in Python.
• List uses square brackets [], tuple uses parentheses ().

• List elements can be changed, added, or removed, tuple elements cannot be changed.

• Lists are used for collections of items that may need to be modified, tuples are used for fixed collections of items.

• Example: list_example = [1, 2, 3], tuple_example = (4, 5, 6)
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Q2. What is namespace and its types?
Ans. 
Namespace is a way to organize variables and functions in a program to avoid naming conflicts.
• Namespace helps in avoiding naming conflicts by providing a unique space for each identifier.

• Types of namespaces include global namespace, local namespace, built-in namespace, and module namespace.

• Example: In Python, each module has its own namespace where all the variables and functions defined in that module reside.
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Q3. Write code to explain multiple inheritance
Ans. 
Multiple inheritance in Python allows a class to inherit attributes and methods from more than one parent class.
• Python supports multiple inheritance by allowing a class to inherit from multiple parent classes.

• The order of parent classes in the inheritance list matters, as methods are searched for in the order they appear.

• Diamond problem can occur in multiple inheritance when two parent classes have a common ancestor cl...read more
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Q4. Define lambda function and give an example?
Ans. 
Lambda function is an anonymous function defined using the lambda keyword in Python.
• Lambda functions are used for creating small, one-time use functions without a name.

• Syntax: lambda arguments: expression

• Example: double = lambda x: x * 2
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Q5. Oops concept,decorator,iterator.
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Q1. Count key frequency in dictionary
Ans. 
Count the frequency of keys in a dictionary.
• Use a loop to iterate through the keys in the dictionary.

• For each key, use the count() method to count its frequency.

• Store the key and its frequency in a new dictionary.
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Q2. Sum of unique numbers in the list
Ans. 
Find the sum of unique numbers in a list.
• Create an empty set to store unique numbers

• Loop through the list and add each number to the set

• Sum up the numbers in the set
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