Indentation is necessary for Python. It specifies a block of code. All code within loops, classes, functions, etc is specified within an indented block. It is usually done using four space characters. If your code is not indented necessarily, it will not execute accurately and will throw errors as well.

set1 = {14, 5, 9, 31, 12, 77, 67, 8}
set2 = {5}

Answer

set1 = {14, 5, 9, 31, 12, 77, 67, 8}
set2 = {5, 77, 9, 12}
print(set1.intersection(set2))

A mechanism to select a range of items from sequence types like list, tuple, strings etc. is known as slicing.

A deep copy copies an object into another. This means that if you make a change to a copy of an object, it won’t affect the original object. In Python, we use the function deepcopy() for this, and we import the module copy. We use it like:

import copy
y = copy.deepcopy(x)

A shallow copy, however, copies one object’s reference to another. So, if we make a change in the copy, it will affect the original object. For this, we have the function copy(). We use it like:

import copy
y = copy.copy(x)

Below method will return 10 as output.

def my_method(argument1, argument2):
    return argument1 * argument2

my_method(5, 2)

Python is used in various software domains some application areas are given below.

• Web and Internet Development
• Games
• Scientific and computational applications
• Language development
• Image processing and graphic design applications
• Enterprise and business applications development
• Operating systems
• GUI based desktop applications

Common native data structures in Python are as follows:

• Dictionaries (Mutable)
• Lists (Mutable)
• Sets (Mutable)
• Strings (Immutable)
• Tuples (Immutable)

Strings and tuples are immutable, as their contents can't be altered once they're created.
 

.py files are Python source files. .pyc files are the compiled bvtecode files that is generated by the Python compiler.

You can use PyChecker, which is a static analyzer. It identifies the bugs in Python project and also reveals the style and complexity related bugs. Another tool is Pylint, which checks whether the Python module satisfies the coding standard.

Below code will print [1, 2, 3, 4, 5]

mylist = ["2", "1", "5", "3", "4"]
mylist = [int(i) for i in mylist]
mylist.sort()
print(mylist)