Python program extract decimal number in the range of 00-99 using regular expressions. Problem Definition Develop a Python program to read through the lines of the file, find the lines which start with X followed by one or more non-space characters, followed by a: character and decimal number in their range of 00-99. Extract decimal […]
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Python program to extract all lines those start with From Problem Definition Develop a simple python program to read a file name and extract all lines those start with “From” in a given file. Video Tutorial Step by Step solution to Problem First, read the filename from the user and store it in variable fname.
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How to Retrieving web pages with urllib In this, tutorial we will discuss How to Retrieving web pages with urllib. We can manually send and receive data over HTTP using the socket library. But in this case, we need to construct the request command manually and send it and parse the received data to remove
How to retrieve web page over HTTP Python – Networked Programs in Python Here we discuss how to retrieve web pages using the Hypertext Transfer Protocol (HTTP). Once the web page is retrieved, then we will read through the web page data and parse it. The set of programs are called networked programs in python.
Classes and Methods in Python – Object-oriented features Video Tutorial Python is an object-oriented programming (OOP) language, hence it supports the features of object-oriented programming. The following are the characteristics of OOP: Programs include class and method definitions. Most of the computation is expressed in terms of operations on objects. Objects often represent things in
Classes and functions in Python Video Tutorial To understand the concept we will define a class called Time that records the time of day. The class definition looks like this and We can create a new Time object or instance, also create and assign attributes for hours, minutes, and seconds. class Time: “””Represents the time
Classes and Objects in Python – Programmer-defined types Video Tutorial Python has a lot of built-in data types and we have used many of those types. Now we will try to define our own data type that is called the user-defined (Programmer-defined) data type. To understand how to create a user-defined data type, we consider
How to use Regular expressions in Python This tutorial discusses how to use regular expressions in Python with simple programming examples. To find patterns and to extract various bits of lines, we can use string methods like split() and find() and using lists and string slicing to extract a substring of the lines. #find function on strings str1 = ‘I am an Engg
Program to display the words of string from longest to shortest Problem statement Python program to accept a string from the user, divide the string into words and display the words of string from longest to shortest. Video Tutorial Steps First, accept a string from the user using the input statement and store it into
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Tuple Data Structure in Python A tuple data structure in python is a sequence of values similar to a list. Values stored in a tuple can be of any type (maybe numeric values, characters, or strings), and they are indexed by integers. The first element is indexed at zero. The important difference between tuple and
