What is extensible Python?
Extensible
If needed, you can write some of your Python code in other languages like C++. This makes Python an extensible language, meaning that it can be extended to other languages
scalable
scalability means the system's capability to handle a growing amount of work, in other words, an increasing number of requests.
• Easy integration with other languages
import org.python.util.PythonInterpreter;
public class JythonHelloWorld {
public static void main(String[] args) {
try(PythonInterpreter pyInterp = new PythonInterpreter()) {
pyInterp.exec("print('Hello Python World!')");
}
}
}
Internet scripting
Python is not used in a web browser. The language executed in browsers such as Chrome, Firefox and Internet Explorer is JavaScript. Projects such as pyjs can compile from Python to JavaScript. However, most Python developers write their web applications using a combination of Python and JavaScript.
Component integration. Python scripts can easily communicate with other parts of an application, using a variety of integration mechanisms. Such integrations allow Python to be used as a product customization and extension tool.
What is Python Identifier?
“An identifier is a name given to an entity”.
In very simple words, an identifier is a user-defined name to represent the basic building blocks of Python. It can be a variable, a function, a class, a module, or any other object.
Lowercase letters (a to z)
Uppercase letters (A to Z)
Digits (0 to 9)
Underscore (_)
Examples of a valid identifier:
num1
FLAG
get_user_name
userDetails
_1234
https://techvidvan.com/tutorials/python-identifiers/
task to Jahan
1.difference between pythong integers
Prints characters starting from 3rd to 5th
print (str[2:5])
str[0]
str[1]
str[2]
>>> tr = 'Hello World!'
>>> print(tr[0])
H
>>> print(tr[1])
e
>>> print(tr[2])
l
>>> print(tr[2:4])
ll
>>> print(tr[2:5])
llo
