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Python Conditional Statements

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Python Functions

Python Function Python min() function Python max() function Python User-define Functions Python Built-in Functions Python Recursion Anonymous/Lambda Function in Python python apply() Function Python lambda() Function

Python File Handling

Python File Handling Python Read CSV Python Write CSV Python Read Excel Python Write Excel Python Read Text File Python Write Text File Read JSON File in Python

Python Exception Handling

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Python OOPs Concept

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Python Iterators

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What is Python 2

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Anaconda in Python 3 Anaconda python 3 installation for windows 10 List Comprehension in Python3

Misc

Python PPTX Python Pickle Python Seaborn Python Coroutine Python EOL Python Infinity Python math.cos and math.acos function Python Project Ideas Based On Django Reverse a String in Python Reverse a Number in Python Python Word Tokenizer Python Trigonometric Functions Python try catch exception GUI Calculator in Python Implementing geometric shapes into the game in python Installing Packages in Python Python Try Except Python Sending Email Socket Programming in Python Python CGI Programming Python Data Structures Python abstract class Python Compiler Python K-Means Clustering NSE Tools In Python Operator Module In Python Palindrome In Python Permutations in Python Pillow Python introduction and setup Python Functionalities of Pillow Module Python Argmin Python whois Python JSON Schema Python lock Return Statement In Python Reverse a sentence In Python tell() function in Python Why learn Python? Write Dictionary to CSV in Python Write a String in Python Binary Search Visualization using Pygame in Python Latest Project Ideas using Python 2022 Closest Pair of Points in Python ComboBox in Python Python vs R Best resources to learn Numpy and Pandas in python Check Letter in a String Python Python Console Python Control Statements Convert Float to Int in Python using Pandas Difference between python list and tuple Importing Numpy in Pycharm Python Key Error Python NewLine Python tokens and character set Python Strong Number any() Keyword in python Best Database in Python Check whether dir is empty or not in python Comments in the Python Programming Language Convert int to Float in Python using Pandas Decision Tree Classification in Python End Parameter in python __GETITEM__ and __SETITEM__ in Python Python Namespace Python GUI Programming List Assignment Index out of Range in Python List Iteration in Python List Index out of Range Python for Loop List Subtract in Python Python Empty Tuple Python Escape Characters Sentence to python vector Slicing of a String in Python Executing Shell Commands in Python Genetic Algorithm in python Get index of element in array in python Looping through Data Frame in Python Syntax of Map function in Python After Python What Should I Learn Python AIOHTTP Alexa Python Artificial intelligence mini projects ideas in python Artificial intelligence mini projects with source code in Python Find whether the given stringnumber is palindrome or not First Unique Character in a String Python Python Network Programming Python Interface Python Multithreading Python Interpreter Data Distribution in python Flutter with tensor flow in python Front end in python Iterate a Dictionary in Python Iterate a Dictionary in Python – Part 2 Allocate a minimum number of pages in python Assertion Errors and Attribute Errors in Python Checking whether a String Contains a Set of Characters in python Python Control Flow Statements *Args and **Kwargs in Python Bar Plot in Python Conditional Expressions in Python Function annotations() in Python How to Write a Configuration file in Python Image to Text in python import() Function in Python Import py file in Python Multiple Linear Regression using Python Nested Tuple in Python Python String Negative Indexing Reading a File Line by Line in Python Python Comment Block Base Case in Recursive function python ER diagram of the Bank Management System in python Image to NumPy Arrays in Python NOT IN operator in Python One Liner If-Else Statements in Python Sklearn in Python Cube Root in Python Python Variables, Constants and Literals What Does the Percent Sign (%) Mean in Python Creating Web Application in python Notepad++ For Python PyPi TensorFlow Python | Read csv using pandas.read_csv() What is online python free IDE What is Python online compiler Run exec python from PHP What are the Purposes of Python Python Ternary Operators Self in Python Python vs Java Python Modulo Python Packages Python Syntax Python Uses Python Bitwise Operators Python Identifiers Python Matrix Multiplication Python AND Operator Python Logical Operators Python Multiprocessing Python Unit Testing __init__ in Python Advantages of Python Is Python Case-sensitive when Dealing with Identifiers Python Boolean Python Call Function Python History Python Image Processing Python main() function Python Permutations and Combinations Difference between Input() and raw_input() functions in Python Conditional Statements in python Confusion Matrix Visualization Python Python Algorithms Python Modules List Difference between Python 2 and Python 3 Is Python Case Sensitive Method Overloading in Python Python Arithmetic Operators Assignment Operators in Python Is Python Object Oriented Programming language Division in Python Python exit commands Continue And Pass Statements In Python Colors In Python Convert String Into Int In Python Convert String To Binary In Python Convert Uppercase To Lowercase In Python Convert XML To JSON In Python Converting Set To List In Python Covariance In Python CSV Module In Python Decision Tree In Python Difference Between Yield And Return In Python Dynamic Typing In Python What is Python compiler GDB Python coding platform Python Classification Python | a += b is not always a = a + b PyDev with Python IDE Character Set in Python Best Python AI Projects _dict_ in Python

How to

How to Substring a String in Python How to Iterate through a Dictionary in Python How to convert integer to float in Python How to reverse a string in Python How to take input in Python How to install Python in Windows How to install Python in Ubuntu How to install PIP in Python How to call a function in Python How to download Python How to comment multiple lines in Python How to create a file in Python How to create a list in Python How to declare array in Python How to clear screen in Python How to convert string to list in Python How to take multiple inputs in Python How to write a program in Python How to compare two strings in Python How to create a dictionary in Python How to create an array in Python How to update Python How to compare two lists in Python How to concatenate two strings in Python How to print pattern in Python How to check data type in python How to slice a list in python How to implement classifiers in Python How To Print Colored Text in Python How to develop a game in python How to print in same line in python How to create a class in python How to find square root in python How to import numy in python How to import pandas in python How to uninstall python How to upgrade PIP in python How to append a string in python How to open a file in python How to Open a file in python with Path How to run a Python file in CMD How to change the names of Columns in Python How to Concat two Dataframes in Python How to Iterate a List in Python How to learn python Online How to Make an App with Python How to comment out a block of code in Python

Sorting

Python Sort List Sort Dictionary in Python Python sort() function Python Bubble Sort

Programs

Factorial Program in Python Prime Number Program in Python Fibonacci Series Program in Python Leap Year Program in Python Palindrome Program in Python Check Palindrome In Python Calculator Program in Python Armstrong Number Program in Python Python Program to add two numbers Anagram Program in Python Number Pattern Programs in Python Even Odd Program in Python GCD Program in Python Python Exit Program Python Program to check Leap Year Operator Overloading in Python Pointers in Python Python Not Equal Operator Raise Exception in Python Salary of Python Developers in India What is a Script in Python

Import Function in Python

In Python programming language, the import keyword plays an important role in the whole code because it makes one module make available in another module. Import is used to structure the programming code very efficiently. Import function allows us to reusable of code and making the past done work and projects maintainable.

Basically, Python basic import is well categorised into modules and packages and the module is defined as they are viewed into Python with the help of importing process and it is also defined as an object that comes up with an organizational unit of Python programming code.

Python only responds to the file containing the extension .py.

The power of modules is that they can be imported anytime and can be reused in other code as well.

Example:

>>>import math
>>>math.pi

Output:

3.141592653

In this piece of code, we observed that we import the math module and use it and the second line we can access the pi variable which is within the math module. math is present and is part of the Python’s standard library which means it is universal in the Python and can be accessed and made available while working with the Python.

NOTE:

While importing we write math.pi rather than just pi because it is not only a module but also a namespace that keeps all the attributes of module together. It makes the code readable and organized in well manner.

We can import any module into the current program to use the functionality. If we want to import the module, we need to use the import keyword with the respective module name associated with. While interpreting the code, if import statement appears then it imports directly into our program. We can also use the functions inside a module by using the .dot () operator along with the associated module name.

For working of the code more efficiently, it is better to import one module only once per the interpreter window. If there is a chance in changing the modules we must again start the interpreter. And if we want test only one module iteratively just uses reload () with the module name with it.

reload(module name)

There are 3 types of ways importing modules:

  • From .. import statement
  • From ..import * statement
  • Renaming the imported module

From .. import statement:

This type is used to import only specific categorized functions and variables from a whole module instead of importing all the functions which are not necessary when choosing a particular function. It is used to import a specific kind of function from the main Python module.

Example:

>>>form math import add
>>>Print (add(1, 2))

Output:

3

We can make the use of add () directly without implementing the module name. when it comes to the point of implementation of multiple attributes at a once, we need to separate the multiple attributes with just a comma and the syntax is followed as:

From calculation import add,sub

Here, add and sub are two multiple attributes separated by comma in between.

From ..import * statement:

This type of statement is a drawback in the Python language because if we implement this statement we disturb the concept of namespace and the function import* is when used, imports all the related functions and classes into the program. These may create a conflict among the other defined functions and other libraries that we imported.

The main disadvantage of this format is that code readability and hiding of the bugs within the program.

Example:

from calculation import *
print(add(2, 3))
print(sub(3, 2))

Output:

5
1

Renaming the Imported Module:

We can rename the module that we are importing, and it comes to the use when the module name is large or wants to a give a short name to understand it easily. We need to use the keyword as and rename it.

Example:

import calculation as cal
print (cal.add(1, 2))

Output:

3

Once the module is renamed, we can’t access the first named module because it’s not going to be recognised anywhere in the program.

Here, the calculation is renamed as cal and calculation is not accessible anywhere in the code.

After all importing the modules, if we want to list out all the names used in the particular module we need to use the dir() function which gives the list.



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