Following are the conceptual theory questions
- Python Dynamically Typed
- Python is simple and easy to learn
- Python is Platform Independent
- Python is Freeware and Open Source
- Python is a High Level Programming Language
- Python is an Interpreted Language
- CPython:It is standard flavour of Python.It can be used to work with C langiage Appliactions
- Jython:It is for Java Appliactions.It can run on JVM
- IronPython:It is for C# .Net platform
- PyPy:The main advantage of PyPy is performance will be improved.
- RubyPython:For Ruby Platforms
- AnacondaPython:It is specially designed for handling large volume of data processing
- A name in Python program is called identifier.It can be class name or function name or module name or variable name.
- I.Common immutable type:
- 1. numbers:int(),float(),complex()
- 2. immutable sequences:str(),tuple(),frozenset(),bytes()
- II.Common mutable type:
- 1. mutable sequences:list(),bytearray()
- 2. set type:set()
- 3. mapping type:dict()
- 4. classes,class instances
- Global Variables:Variables declared outside a function or in global space are called Global variables.
- Local Variables:Any variable declared inside a function is known as local variable.
- In Python before 3.10,we do not have a switch-case statement.Here,you may write a switch function to use.
- Negative numbers mean that you count from the right instead of the left. So, list[-1] refers to the last element.list[-2] is the second-last and so on.
- Use a
tupleto store a sequence of items that will not change. - Use a
listto store a sequence of items that may change. - Use a
dictionarywhen you want to associate pairs of two items.
- All Fundamental data types are immutable i.e once we create an object,we cannot perform any changes in that object
- raw_input():This function always reads the data from the keyword in the form of String Format.
- input():function can be used to read data directly in our required format.
- eval() Function is a single function which is the replacement of all the typecasting functions in Python:
- by using continue statement
- We can access characters of a string by using following ways:
- 1.By using index
- 2.By using slice operator
- We an use len() function to find the number of characters present in the string
- Python allows a user to add new functionality to an existing object without modifying its structure.This is known as decorator.It ia a design pattern.
- A metaclass is a class that defines the behaviour of other classes.It can be used to customize creation and behaviour of classes.
- Pandas is an open-source Python library consisting of a rich set of data structures to perform data-based operations
- It is one-dimensional data structure of Pandas which can store any type of data. It looks like an Excel column.
- Python libraries are a grouping of Python packages.A few of the most popular libraries are Numpy,Pandas,Matplotlib and many other tools.
- Django is a web service,and its architecture is discussed as follows:
- i.The front end of the web page is the Template.
- ii.Data is stored at the backend,known as Model.
- iii.Django serves pages to the user.
- iv.View interacts with the Template and Model.View maps it back to the Url
- Namespace is the name assigned to each object-variables and functions.There are 4 types of namespaces in Python:
- 1.Global Namespace
- 2.Built-in Namespace
- 3.Local Namespace
- 4.Enclosing Namespace
- finally vs. finalize():finally handles cleanup after a try block; finalize() is a method called by the garbage collector before an object is destroyed.
- When there's syntactic,the pass statement is used.It is not used when there's an operational requirement.
- PythonPath is a environment variable which is utilized when a module is imported.
Following are the coding based questions
