Introduction:

1. Python is a popular programming language created by Guido van Rossum and released in the year 1991. 

2. Python is a more powerful language that offers great tools for data crunching and preparation, as well as for complex scientific data analysis and modeling. 

3. Python today has multiple implementations including Jython, scripted in Java language for Java Virtual Machine.

4. IronPython is the new variety that is written in C# for the Common Language Infrastructure, and the PyPy version is written in RPython and translated into C. 

5. Most of the Python modules work on a community development model and are open-source and free.

Zip Function in Python:

1. The zip() function in Python is basically used to return a zip object.

2. The zip object is basically an iterator of tuples. 

3. Here in the iterator the first item or value in each passed iterator is paired together, and then the second item in each passed iterator is paired together, etc.

4. During the process, if the passed iterators have different lengths, the iterator with the least items decides the length of the new iterator.

Syntax:

zip(iterator1, iterator2, iterator3 ...)

Note:  Here the Iterator objects that will be joined together.

Example:

We can have the following example which shows how the zip function is being used in Python. Here it should be noted that If one tuple contains more items, these items are ignored.

a = ("John", "Charles", "Mike")
b = ("Jenny", "Christy", "Monica", "Vicky")

x = zip(a, b)

Zip in Python 3:

 As you know Python released version 3.0 which is also called Python 3 in December 2008. Technically this version was mainly released in order to fix the major problems that are found in Python 2. As you know Python 3 was incompatible with Python 2 in many aspects. It is backward incompatible and Some features of Python 3 have been backported to Python 2. x versions to make the migration process easy in Python 3.

When we are going to consider the zip function utility Python 3 doesn’t have many differences in terms of syntax but yes in terms of values, it does have. Let us consider the following example which will let you know how the zip function is applied in Python3.

Syntax:
zip(*iterators)
Parameters:
Here the Python iterables or containers that we used to have are ( list, string, etc ).
Return Value :

It is used to return a single iterator object which is used to contains the mapped values from all the containers that are present.

Example:

# Python code to demonstrate the working of zip() 

  

# initializing lists 

name = [ "Manjeet", "Nikhil", "Shambhavi", "Astha" ] 

roll_no = [ 4, 1, 3, 2 ] 

marks = [ 40, 50, 60, 70 ] 

  

# using zip() to map values 

mapped = zip(name, roll_no, marks) 

  

# converting values to print as set 

mapped = set(mapped) 

  

# printing resultant values  

print ("The zipped result is : ",end="") 

print (mapped) 

Note: If we are going to compare with Python2 and Python3 then you will find the similarity in maximum cases.

Unzipping in Python:

Similar to zip() the Unzipping is also get implemented. The Unzipping operation in Python means we are going to convert the zipped values back to the individual self as they were initially before the zip() was applied. This is done with the help of “*” operator.

Let us consider the following example which will let you know how the unzipping will work. Here I am going to consider the same example that I have taken in the zip() implementation so that you can easily understand the zip() and unzip().

Example:

# Python code to demonstrate the working of  unzipping 

  

# First we need to initialize the lists 

  

name = [ "Manjeet", "Nikhil", "Shambhavi", "Astha" ] 

roll_no = [ 4, 1, 3, 2 ] 

marks = [ 40, 50, 60, 70 ] 

  

# using zip() to map values 

mapped = zip(name, roll_no, marks) 

  

# converting values to print as list 

mapped = list(mapped) 

  

# printing resultant values  

print ("The zipped result is : ",end="") 

print (mapped) 

  

print("\n") 

  

# unzipping values 

namz, roll_noz, marksz = zip(*mapped) 

  

print ("The unzipped result: \n",end="") 

  

# printing initial lists 

print ("The name list is : ",end="") 

print (namz) 

  

print ("The roll_no list is : ",end="") 

print (roll_noz) 

  

print ("The marks list is : ",end="") 

print (marksz)

Note:

It should be noted that there are many possible applications present that can be said to be expected using Zip. 

We have many relevant examples where we are going to apply such functionality in a wider range. For example, student databases scorecards, or any other utility that requires mapping of groups. 

Scope @ NareshIT:

1. At Naresh IT you will get a good Experienced faculty who will guide you, mentor you, and nurture you to achieve your dream goal.

2. Here you will get good hands-on practice in terms of the practical industry-oriented environment which will definitely help you a lot to shape your future.

3. During the designing process of the application, we will let you know about the other aspects of the application too. 

4. Our Expert trainer will let you know about every in and out of the problem scenario.

Achieving your dream goal is our motto. Our excellent team is working restlessly for our students to click their target. So, believe in us and our advice, and we assure you about your success.