What makes Python Cool?

PythonServer Side ProgrammingProgramming

In this article, we will learn about what all features makes python cool and different from other languages.

>>>import this

Output

The Zen of Python, by Tim Peters
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
The flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!

Swapping of two variables in one line

We can assign values to multiple variables at the same time in the form of single statement as shown below

Example

 Live Demo

a = 201
b = 786
print("Before swapping value of a ="+str(a)+" and b = "+str(b))
#Before swapping value
a, b = b, a
print("After swapping value of a ="+str(a)+" and b = "+str(b))
#After swapping value

Output

Before swapping value of a =201 and b = 786
After swapping value of a =786 and b = 201

Enumerate type

The enumerated type is used to traverse the list and similar types without actually knowing their lengths.

Example

 Live Demo

mylist = ['t','u','t','o','r','i','a','l']
for i, value in enumerate(mylist):
   print( i, ': ', value)

Output

0 : t
1 : u
2 : t
3 : o
4 : r
5 : i
6 : a
7 : l

Zip method

By using zip method we can traverse over multiple lists at the same time as shown in the code below.

Example

 Live Demo

mylist1 = ['t','u','t','o','r','i','a','l']
mylist2 = ['p','o','i','n','t']
for i,j in zip(mylist1,mylist2):
   print( i, ':', j)

Output

t : p
u : o
t : i
o : n
r : t

Reversing the list

By using built-in reversed method() we can directly obtain the reversed list without any looping construct

Example

 Live Demo

list_inp = ['t','u','t','o','r','i','a','l']
print(list(reversed(list_inp)))

Output

['l', 'a', 'i', 'r', 'o', 't', 'u', 't']

Use Interactive "_" Operator.

This operator is used on the command line to print or display the output of the previous operation performed.

>>> 12 + 12
24
>>> _
24
>>> print(_)
24

As we all are aware that there is no need for data type declaration in Python and we can change the data type of variables multiple times in a program.

Conclusion

In this article, we learnt about what all features are present in Python which makes it cool and more attractive to programmers.

raja
Published on 29-Aug-2019 11:33:48
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