Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
Python Articles
Page 838 of 854
Configuration file parser in Python (configparser)
The configparser module from Python's standard library defines functionality for reading and writing configuration files as used by Microsoft Windows OS. Such files usually have .INI extension.The INI file consists of sections, each led by a [section] header. Between square brackets, we can put the section’s name. Section is followed by key/value entries separated by = or : character. It may include comments, prefixed by # or ; symbol. A sample INI file is shown below −[Settings] # Set detailed log for additional debugging info DetailedLog=1 RunStatus=1 StatusPort=6090 StatusRefresh=10 Archive=1 # Sets the location of the MV_FTP log file LogFile=/opt/ecs/mvuser/MV_IPTel/log/MV_IPTel.log ...
Read MoreCalculate geographic coordinates of places using google geocoding API in Python?
To get the geographic coordinates of the place that is longitude and latitude of the place we can use google maps geocoding api.RequirementTo get the coordinates of a place, we required geocoding api & you can get it from below link:https://developers.google.com/maps/documentation/geocoding/get-api-keyApart from api_key, we are going to use pythonRequest module (fetch the coordinates)Json module (for conversion).Below is the program to achieve the same:# Import required library import requests import json #Enter the place name place = input("Please enter place name: ") #Place your google map API_KEY to a variable apiKey = 'YOUR_API_KEY' #Store google geocoding api url in a variable ...
Read MoreInspect live objects in Python
Functions in this module provide usefule information about live objects such as modules, classes, methods, functions, code objects etc. These functions perform type checking, retrieve source code, inspect classes and functions, and examine the interpreter stack.getmembers()− This function returns all the members of an object in a list of name, value pairs sorted by name. If the optional predicate is supplied, only members for which the predicate returns a true value are included. getmodulename() −This function returns the name of the module named by the file path, without including the names of enclosing packagesWe shall be using following script for ...
Read MorePython Context Variables
Context variable can have different values depending on its context. Unlike Thread-Local Storage where each execution thread may have a different value for a variable, a context variable may be several contexts in one execution thread. This is useful in keeping track of variables in concurrent asynchronous tasks.The ContextVar class is used to declare and work with Context Variables.import contextvars name = contextvars.ContextVar("name", default = 'Hello')The optional default parameter is returned by ContextVar.get() when no value for the variable is found in the current context.name: The name of the variable. This is a read-only property.Following methods are defined in ContextVar ...
Read MoreBisect - Array bisection algorithm in Python
Performing sort operations after every insertion on a long list may be expensive in terms of time consumed by processor. The bisect module ensures that the list remains automatically sorted after insertion. For this purpose, it uses bisection algorithm. The module has following functions:bisect_left()This method locates insertion point for a given element in the list to maintain sorted order. If it is already present in the list, the insertion point will be before (to the left of) any existing entries. The return value caan be used as the first parameter to list.insert()bisect_right()This method is similar to bisect_left(), but returns an ...
Read MoreData visualization with different Charts in Python?
Python provides various easy to use libraries for data visualization. Good thing is that these libraries works with small or large datasets.Some of the most commonly used python libraries for data visualizations are −MatplotlibPandasPlotlySeabornBelow we are going to plot different types of visualization chart for one fixed data to better analyse that data.We are going to analyze below data set to visualize through different charts −Country or AreaYear(s)VariantValueIndia2019Medium1368737.513India2019High1378419.072India2019Low1359043.965India2019Constant fertility1373707.838India2019Instant replacement1366687.871India2019Zero migration1370868.782India2019Constant mortality1366282.778India2019No change1371221.64India2019Momentum1367400.614Basic Plot Let's create some basic plots: Line plots, scatter plots and histogramsLine PlotsLine graphs are plots where a line is drawn to indicate a relationship between a particular ...
Read MorePlotting Google Map using folium package?
Folium is a very powerful python library which let you create seveal kind of Leaflet maps. As Leaflet/folium maps are interactive, so they are ideal for making dashborad building.InstallationInstalling folium is very easy using pip −$pip install foliumLike you can see from the below screenshot, you just need to type above command in your console/cmd and pip will install the folium as well as dependencies for your python installation.Basic Map#Import library import folium #Uses lat then lon. & zoomlevel 4.The bigger the zoom number, the closer in you get. mapOBJ = folium.Map(location=[17.3616, 78.4747], zoom_start = 4, tiles = 'Stamen ...
Read MoreImage processing in Python?
Python provides lots of libraries for image processing, including −OpenCV − Image processing library mainly focused on real-time computer vision with application in wide-range of areas like 2D and 3D feature toolkits, facial & gesture recognition, Human-computer interaction, Mobile robotics, Object identification and others.Numpy and Scipy libraries − For image manipuation and processing.Sckikit − Provides lots of alogrithms for image processing.Python Imaging Library (PIL) − To perform basic operations on images like create thumnails, resize, rotation, convert between different file formats etc.In this section we are going to see some basics of image processing in python.Install required library Our first step ...
Read Morehtml.parser — Simple HTML and XHTML parser in Python
The HTMLParser class defined in this module provides functionality to parse HTML and XHMTL documents. This class contains handler methods that can identify tags, data, comments and other HTML elements.We have to define a new class that inherits HTMLParser class and submit HTML text using feed() method.from html.parser import HTMLParser class parser(HTMLParser): pass p = parser() p.feed('')We have to override its following methodshandle_starttag(tag, attrs):HTML tags normally are in pairs of starting tag and end tag. For example and . This method is called to handle the start of a tag.Name of the tag converted to lower case. The attrs ...
Read MoreImage based Steganography using Python?
Steganography is a technique of hiding information behind the scene. It’s is not like cryptography which focuses on encrypting data(through different algorithms like SHA1, MD5 etc), steganography focuses more on hiding the data (data can be a file, image, message or video) within another file, image, message or video to avoid any attraction.So in this we’ll try to create a simple python program that hides the information behind the image without noticiable changes in the looks of the image. There are two main parts of the program – first is a decoding function that can extract secret information from an ...
Read More