Python:

Python is a dynamic, interpreted (bytecode-compiled) language. There are no type declarations of variables, parameters, functions, or methods in source code. This makes the code short and flexible, and you lose the compile-time type checking of the source code.

How does Python code work:

• Step 1: The Python compiler reads a Python source code or instruction in the code editor. In this first stage, the execution of the code starts.
• Step 2: After writing Python code it is then saved as a .py file in our system. In this, there are instructions written by a Python script for the system.
• Step 3: In this the compilation stage comes in which source code is converted into a byte code. Python compiler also checks the syntax error in this step and generates a .pyc file.
• Step 4: Byte code that is .pyc file is then sent to the Python Virtual Machine(PVM) which is the Python interpreter. PVM converts the Python byte code into machine-executable code and in this interpreter reads and executes the given file line by line. If an error occurs during this interpretation then the conversion is halted with an error message.
• Step 5: Within the PVM the bytecode is converted into machine code that is the binary language consisting of 0’s and 1’s. This binary language is only understandable by the CPU of the system as it is highly optimized for the machine code.
• Step 6: In the last step, the final execution occurs where the CPU executes the machine code and the final desired output will come as according to your program.

Python code run:

In this case, Python loads the file content and runs the code line by line, following the program's execution flow. Alternatively, interactive mode is when you launch the interpreter and use it as a platform to run code that you type in directly.

Need of Python:

Python is commonly used for developing websites and software, task automation, data analysis, and data visualisation. Since it's relatively easy to learn, Python has been adopted by many non-programmers, such as accountants and scientists, for a variety of everyday tasks, like organising finances.

Python syntax:

The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). The Python language has many similarities to Perl, C, and Java. However, there are some definite differences between the languages.