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  • Build a network from scratch: Networkx Python

    NetworkX is the most popular Python package for manipulating and analyzing graphs. Several packages offer the same basic level of graph manipulation, and study of the structure, dynamics, and functions of complex networks. Pygraphviz is a Python interface to the Graphviz graph layout and visualization package.Python language data structures for graphs, digraphs, and multigraphs. Nodes can be "anything" (e.g. text, images, XML records)Edges can hold arbitrary data (e.g. weights, time-series)Generators for classic graphs, random graphs, and synthetic networksStandard graph algorithmsNetwork structure and analysis measuresBasic graph drawingOpen source BSD licenseWell tested: more than 1500 unit testsAdditional benefits from Python: fast prototyping, easy to teach, multi-platform. Installing Packages If you've done any sort of data analysis in Python or have the Anaconda distribution, my guess is you probably have pandas and matplotlib. However, you might not have networkx. pip install pandas pip install networkx pip install matplotlib Next we will present simple example of network with 5 nodes. To fire up network, we have to import networkx. import networkx as nx import matplotlib.pyplot as plt %matplotlib inline Create Graph Now you use the edge list and the node list to create a graph object in networkx. # Create empty graph G = nx.Graph() "G" is the name of the graph you build. Next we add nodes. There are two ways to add nodes: one by one, print(type(G)) #type=global keyword/class G.add_node("A") G.add_node("Python") ##to find the first node #first make a node list nodelist = list(G.node) print(nodelist[0]) #python starts with 0 Add in a list of Nodes nodelist = ['B','C','D','E'] G.add_nodes_from(nodelist) Then we add edges. Also there are two ways, either one by one G.add_edge('A','B') G.remove_node('Python') Add in a batch edgeList = [('A','B'),('B','C'),('C','D'),('A','D')] #list of tuples G.add_edges_from(edgeList) Finally we will visualize our work and get basic information of network. nx.draw(G, with_labels =True, node_color = 'pink', node_size = 900) #PythonAssignmentHelp #PythonExpertHelp #networkxAssignmentHelp #MachineLearningAssignmentHelp #DataAnalystAssignmentHelp #PythonGUIProjectHelp #PythonProjectHelp #PythonAssignmentDeveloper #HirePythonDeveloperforAssignment #PythonDeveloper #PythonCodingHelp #DJangoProjectHelp #PythonProjectHelp #pythonDeveloperHelp If you like Codersarts blog and looking for Assignment help,Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in comment section below if you find anything incorrect in this blog post.

  • 10 Most Common Commands in MongoDB

    Here we discuss about ten most commonly used commands for MongoDB beginners. Please feel free to comment and make suggestions if I failed to mention any important points! After installation: 1. Start MongoDB: Open cmd and run mongod >mongod Open another cmd and run this commend >mongo 2. Show All Databases: >show dbs 3. Select Database to Work With: >use databaseName 4. Authenticate and Log Out From Database: // Authenticate // >db.auth("username", "password"); // // Logout // >db.logout() 6. Create a Collection: >db.createCollection("collectionName"); 7. Insert a Document in a Collection: Once a collection is created, the next step is to insert one or more documents. Following is a sample command for inserting a document in a collection. // Insert single document // >db..insert({field1: "value", field2: "value"}) // // Insert multiple documents // >db..insert([{field1: "value1"}, {field1: "value2"}]) >db..insertMany([{field1: "value1"}, {field1: "value2"}]) 8. Save or Update Document: The save command can be used to either update an existing document or insert a new one depending on the document parameter passed to it. // Matching document will be updated; In case, no document matching the ID is found, a new document is created // >db..save({"_id": new ObjectId("jhgsdjhgdsf"), field1: "value", field2: "value"}); 9. Display Collection Records: The following commands can be used to retrieve collection records: // Retrieve all records >db..find(); // Retrieve limited number of records; Following command will print 10 results; >db..find().limit(10); // Retrieve records by id >db..find({"_id": ObjectId("someid")}); // Retrieve values of specific collection attributes by passing an object having // attribute names assigned to 1 or 0 based on whether that attribute value needs // to be included in the output or not, respectively. >db..find({"_id": ObjectId("someid")}, {field1: 1, field2: 1}); >db..find({"_id": ObjectId("someid")}, {field1: 0}); // Exclude field1 // // Collection count // >db..count(); 10. Administrative Commands: Following are some of the administrative commands that can be helpful in finding collection details such as storage size, total size, and overall statistics. // Get the collection statistics // >db..stats() >db.printCollectionStats() // // Latency statistics for read, writes operations including average time taken for reads, writes // and related umber of operations performed // >db..latencyStats() // // Get collection size for data and indexes // >db..dataSize() // Size of the collection >db..storageSize() // Total size of document stored in the collection >db..totalSize() // Total size in bytes for both collection data and indexes >db..totalIndexSize()// Total size of all indexes in the collection For more details contact at here #Howtoimplementmongodbcommand #Top10commandinmongodb #Howtoinstallmongodbcommand #Importantmongodbquery #Crudoperationinmongodb #Basiccommandofmongodb #HowtostartMongoDBincommandprompt #Howtoshowdatainmongodb #Howtoinsertrecordinmongodb #Howtoupdaterecordinmongodb

  • How to implement Keyboard and Mouse click event in tkinter | Tkinter event handling | Event and Bind

    Whenever we use Tkinter, we are not just limited to bind one function to one widget. With widgets, we can bind multiple events to it depending on what we do with that widget, it behaves in different kind of ways. We can have a button, and if we left click it, something happens and if you right click it, something else happens. Tkinter also lets you install callables to call back when needed to handle a variety of events. However, Tkinterdoes not let you create your own custom events; you are limited to working with events predefined by Tkinter itself. Tkinter provides a powerful mechanism to let you deal with events yourself. For each widget, you can bind Python functions and methods to events. widget.bind(event, handler) If an event matching the event description occurs in the widget, the given handler is called with an object describing the event. 1- The Event Object: General event callbacks must accept one argument event that is a Tkinter event object. Such an event object has several attributes describing the event: widget, x_root , y_root, x, y, num, keysym, char 2- Binding Callbacks to Events: Usually enclosed in angle brackets ('<...>') 3- Event Names: Frequently used event names, which are almost all enclosed in angle brackets, fall into a few categories. 1-Keyboard events 2-Mouse event, Keyboard Event: Key, Special keys, Normal keys, Button-1, Button-2, Button-3, B1-Motion, B2-Motion, B3-Motion, ButtonRelease-1, ButtonRelease-2, ButtonRelease-3, Double-Button-1, Double-Button-2, Double-Button-3, Enter, Leave etc 4-Event-Related Methods: Each widget w supplies the following event-related methods. bind w.bind(event_name,callable[,'+']) w.bind(event_name,callable) sets callable as the callback for event_name on w. w.bind(event_name,callable,'+') adds callable to the previous bindings for event_name on w. bind_all w.bind_all(event_name,callable[,'+']) w.bind_all(event_name,callable) sets callable as the callback for event_name on any widget of the application, whatever widget w you call the method on. w.bind_all(event_name,callable,'+') adds callable to the previous bindings for event_name on any widget. unbind w.unbind(event_name) Removes all callbacks for event_name on w. unbind_all w.unbind_all(event_name) Removes all callbacks for event_name on any widget, previously set by calling method bind_all on any widget. ------------------------------------------------------------------------------------------ Example:1 Handling Mouse event -------------------------------------------------------------------------------------------from tkinter import * var = Tk() def leftclick(event): print("left") def middleclick(event): print("middle") def rightclick(event): print("right") frame = Frame(var, width=300, height=250) frame.bind("", leftclick) frame.bind("", middleclick) frame.bind("", rightclick) frame.pack() var.mainloop() ------------------------------------------------------------------------------------------- Example 2: Capturing keyboard events ---------------------------------------------------------------------------------- from tkinter import * root = Tk() def key(event): print("pressed", repr(event.char)) def callback(event): frame.focus_set() print("clicked at", event.x, event.y) frame = Frame(root, width=100, height=100) frame.bind("", key) frame.bind("", callback) frame.pack() root.mainloop() ---------------------------------------------------------------------------------- Click here for any tkinter GUI related assignment help or any programming assignment help. #tkintereventhandling #tkintermouseandkeyboardeventhandling #tkinterevent #handletkintereventwithmouseandkeyboard #Stuffintkintereventhandling #Howtohandletkinterevent #Howtocreatesimplegameusingevent #tkinterexperthelp #Tkinterassignmenthelp #TkinterHomeworkhelp #Helpwithtkinter #createsimpleeventhandlingapp #Typesofeventintkinter #Typesofeventinkeyboard #HelppythonGUIUsingevent

  • How to declare Static variable in python | Access static or class variable | Static variable in pyth

    The Python approach is simple, it doesn’t require a static keyword. All variables which are assigned a value in class declaration are class variables or static variable. And variables which are assigned values inside class methods are instance variables. For more clarify see below example or go to the github link: https://gist.github.com/CodersArts/c4a2f3e1e3c8290ab4691a11164c6dfa Contact here for more help #Pythonprogramminghelp #weneedpythonprogramminghelp #Helpmeinpythonprogramming #Howtodeclarestaticvariableinpython #Staticvariableinpython #objectorientedprogrammingassignmenthelp #Howtoaccessstaticvariableinpython

  • Top 10 Python Assignment Help | Python Expert and Programming help | Python from beginners to expert

    In this article, we will offer top 10 learning Areas in python that will help jump start your journey from beginners to becoming a Advanced Python programmer! Python Questions: Codersarts Expert team give the solutions of python related questions asked by student or a our client. Our team always ready to give a best solution to the client. Python has turned the 3rd most in-demand programming language sought after by employers. Hence, we brought 100 essential Python interview questions to acquaint you with the skills and knowledge required to succeed in a job interview. Python programming: Welcome! Are you completely new to programming? If not then we presume you will be looking for information about why and how to get started with Python. Fortunately an experienced programmer in any programming language (whatever it may be) can pick up Python very quickly. It's also easy for beginners to use and learn, so jump in. Machine Learning: Need Help Getting Started with Applied Machine Learning? We provide the 24/7 Online support for Machine Learning assignments. We are the team of experts for machine learning, provide the help for writing the Principles of pattern recognition, machine Optimization methods, Learning algorithms, Probability theory, Machine learning model. We are having capability to complete your assignment within the deadline. We also help in partial or incomplete or wrongly written assignments and convert it to complete and correct solution, so that the students obtain maximum scores in their assignment. We provide free solution for your doubts related to the topics. Here Some L. functions to learn before start machine learning: numpy - mainly useful for its N-dimensional array objects pandas - Python data analysis library, including structures such as dataframes matplotlib - 2D plotting library producing publication quality figures scikit-learn - the machine learning algorithms used for data analysis and data mining tasks Data Science: Codersarts is one of the best places to get help with your data science assignment solution. Our data science assignment experts have extensive knowledge and experience in the fields of statistics, mathematics and computer science and they also have industrial level data analyzing experience. Our data analysis and data science assignment help experts have helped over 5000 students, worldwide, in need of solving data analysis assignment solutions. Python GUI: To get the help for Python GUI based assignments, send your requirements at hello < at > codersarts <.> com or else upload inquiry on the website. Our tutors and experts are available to help you instantly and ready to manage the tight deadlines. Simple steps: 1- Send us the exact requirements and instructions for your Python GUI assignment / Python GUI homework / Python GUI project. 2- We build the solution using Python GUI tool / library accordingly and send it to you. 3- You get high grades. Python Projects: Codersarts team done more than 1000 projects in different areas like Game, healthcare, web, education and researches etc. We providing you high grade projects before your given deadline. We will not stop until you not satisfied. If you need need any help related to python project than contact to the codersarts team. Click here to get help or contact at given link. #PythonProgramminghelp #Machinelearninghelpinpython #GUIhelpinpython #DataSciencehelpinpython #PythonwebApplicationhelpinpython #PythonProjecthelp #PythonModulesandpythonLibrarieshelpinpython #pythonprogrammingAssignmenthelpAustralia #needhelpwithpythonassignment #pythonprogrammingassignmenthelpfromexperts #Onlinepythonprogramminghelp #Onlinepythonhomeworkhelp #onlinepythonprojecthelp #Howtomakepythonproject #AdvancedprojecthelpinpythonHOw

  • Introduction to python GUI - Labels, Frames and buttons

    How to Create an attractive webpage using tkinter widgets? Hello everybody to codersarts.com, welcome to the my Second post on Python GUI (Graphical User Interface). Here we use TKInter which is a standard GUI package for python. I will create a simple python GUI examples which includes frames, labels, and a button. Labels: The Label is used to specify the container box where we can place the text or images. This widget is used to provide the message to the user about other widgets used in the python application. Structure to define Labels: w = Label (master, options) Some important options which used in labels are as: anchor:It specifies the exact position of the text within the size provided to the widget. The default value is CENTER, which is used to center the text within the specified space. bg:The background color displayed behind the widget bd: It represents the width of the border. The default is 2 pixels cursor:The mouse pointer will be changed to the type of the cursor specified, i.e., arrow, dot, etc. some other options which we can use in tkinter: fg,font,height,image,justify,padx,pady,relief,text,textvariable,underline, width,wraplength Frames: Python Tkinter Frame widget is used to organize the group of widgets. It acts like a container which can be used to hold the other widgets. The rectangular areas of the screen are used to organize the widgets to the python application. Structure to define Frame: w = Frame(parent, options) It has many options which which is given below: bd,bg,cursor,height,highlightbackground,highlightcolor,highlightthickness,relief,width Button: The button widget is used to add various types of buttons to the python application. Python allows us to configure the look of the button according to our requirements. Various options can be set or reset depending upon the requirements. We can also associate a method or function with a button which is called when the button is pressed. Structure to define Button: W = Button(parent, options) options: activebackground- It represents the background of the button when the mouse hover the button. activeforeground: It represents the font color of the button when the mouse hover the button. Bd: It represents the border width in pixels Bg: It represents the background color of the button Highlightcolor:The color of the highlight when the button has the focus. All options similar to the Labels widget which which is given above Labels widget descriptions. Another examples which display combinaton of above widget: First our team say thanks to read my blog if you have any query or a any python related help like programming, web application using tkinter, Django framework, machine learning, data science and Artificial Intelligence related assignment or project you can directly contact to the codersarts.com or codersarts contact page link. If you like Codersarts blog and looking for Assignment help,Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com. Please write your suggestion in comment section below if you find anything incorrect in this blog post. #Howtoaddbuttonintkinter #Howweuselabelsinintkinter #tkinterprojectandassignmenthelp #pythonprojectassignmenthelp #makeapplicationusingtkinterwidgets #importanttkinterwidgets #Howmanywidgetsinpythontkinter #pythontkinterimportantwidgets

  • Python Tkinter widgets | How to create python GUI using Tkinter widgets

    Python Tkinter widgets: Before start tkinter widgets first we know about some geometry manager which is used to create a widgets. Grid() and pack() Geometry manager in python: The Grid geometry manager puts the widgets in a 2-dimensional table. The master widget is split into a number of rows and columns, and each “cell” in the resulting table can hold a widget. The grid manager is the most flexible of the geometry managers in Tkinter. If you don’t want to learn how and when to use all three managers, you should at least make sure to learn this one. The grid manager is especially convenient to use when designing dialog boxes. Never mix grid() and pack() in the same master window. Patterns: Using the grid manager is easy. Just create the widgets, and use the grid method to tell the manager in which row and column to place them. You don’t have to specify the size of the grid beforehand; the manager automatically determines that from the widgets in it. Label(master, text="First").grid(row=0) Label(master, text="Second").grid(row=1) e1 = Entry(master) e2 = Entry(master) e1.grid(row=0, column=1) e2.grid(row=1, column=1) Sticky: Defines how to expand the widget if the resulting cell is larger than the widget itself. This can be any combination of the constants S, N, E, and W, or NW, NE, SW, and SE. For example, W (west) means that the widget should be aligned to the left cell border. W+E means that the widget should be stretched horizontally to fill the whole cell. W+E+N+S means that the widget should be expanded in both directions. Default is to center the widget in the cell. Label(master, text="First").grid(row=0, sticky=W) Label(master, text="Second").grid(row=1, sticky=W) e1 = Entry(master) e2 = Entry(master) e1.grid(row=0, column=1) e2.grid(row=1, column=1) You can also have the widgets span more than one cell. The columnspan option is used to let a widget span more than one column, and the rowspan option lets it span more than one row. The following code creates the layout shown in the previous section: label1.grid(sticky=E) label2.grid(sticky=E) entry1.grid(row=0, column=1) entry2.grid(row=1, column=1) checkbutton.grid(columnspan=2, sticky=W) image.grid(row=0,column=2,columnspan=2,rowspan=2 , sticky=W+E+N+S, padx=5, pady=5) button1.grid(row=2, column=2) button2.grid(row=2, column=3) padx: Optional horizontal padding to place around the widget in a cell. Default is 0. pady: Optional vertical padding to place around the widget in a cell. Default is 0. in: Place widget inside to the given widget. You can only place a widget inside its parent, or in any decendant of its parent. If this option is not given, it defaults to the parent.Note that in is a reserved word in Python. To use it as a keyword option, append an underscore (in_). row= Insert the widget at this row. Row numbers start with 0. If omitted, defaults to the first empty row in the grid. rowspan= If given, indicates that the widget cell should span multiple rows. Default is 1. In our next blogs we start the complete description about the tkinter widgets. If any query or a problem regarding python programming or tkinter widgets you can directly contact through given link, click here to reach out the codersarts expert team. #PythonAssignmenthelp #PythonProgramminghelp #PythonGUIhelp #Howtoimplementpythonwidget #HowtomakeGUIapplicationwiththehelppython #Pythonprojecthelp

  • How to implement Crud Operation using Django framework ? Add, Delete and Edit record in Models.

    Are you have any stuff with Python and Django framework ? Codersarts provide better code through highly well experienced developer or Expert without any stuff. Here we attached screenshot to implement Crud Operation using Django framework. index.html To find complete code or any help contact at given link which mentioned on bottom of this blog. Add record: Show record from models: After adding record record is display like this Add new record record again by using Add new record button: Edit record: As like we perform all crud operation here basic file structure of this project is given below: For more details contact here Website: www.codersarts.com If you like Codersarts blog and looking for Assignment help,Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com. #howtoimplementCrudoperation #pythonassignmenthelp #Djangoassignmenthelp #Crudoperation #CrudoperationinDjango #DjangoCrudoperation #Howtoadd #Howtoadddeleteandeditmodel

  • How to create Django Model ? | Create Model and insert Object data using Django Shell

    What is model in django ? A model is a class that represents table or collection in our DB, and where every attribute of the class is a field of the table or collection. Models are defined in the Create_Model_App/models.py Dreamreal model created as an example: model.py: from django.db import models class Dreamreal(models.Model): website = models.CharField(max_length = 50) mail = models.CharField(max_length = 50) name = models.CharField(max_length = 50) phonenumber = models.IntegerField() class Meta: db_table = "dreamreal" And then after use command : >python manage.py makemigrations Output: If you make any changes in module object then run this code in Django shell script: >python manage.py migrate Start shell in cmd: >python manage.py shell Import Module class as: >form create_model_App.models import Dreamreal,Online Now table is created and we enter and display data form this table: Check table record by id. It means we can check what numbers of time we will added record Another way to save record in a table: First define a model and entered record one by one in models or django tables. > a = Dreamreal() > a.website = "www.codersarts.com" > a.mail = "codersarts@gmail.com" > a.name = "jitendra" > a.phonenumber = "9999999999" > a.save() If we want to display data with group means one object link with another objects then we add these line in our code: Model.py from django.db import models class Dreamreal(models.Model): website = models.CharField(max_length = 50) mail = models.CharField(max_length = 50) name = models.CharField(max_length = 50) phonenumber = models.IntegerField() def __str__(self): return self.website + '----' + self.mail After change code first we exit( by using( >exit )command) from shell then and back to database API by using these commands: Now import show result again: Filteration using filter to specify output: Use this in python shell: >Dreamreal.objects.filter(id=1) To see structure of Dreamreal module add some line in admin.py. Admin.py: from django.contrib import admin from .models import Dreamreal # Register your models here. admin.site.register(Dreamreal) output result: Click on Dreamreals output show all previous add data which added through view.py or shell If you want to make any changes in data then click one of a the object. And make changes by this. If you like Codersarts blog and looking for Assignment help,Project help, Programming tutors help and suggestion you can send mail at contact@codersarts.com For more details or any project help contact coders arts experts or team by click here. #PythonAssignmenthelp #PythonExperthelp #PythonProjecthelp #DjangoAssignmenthelp #Djangoprojecthelp #Howtomakedjangoproject #Howtomakemodelindjango #HowtoadddatainDjangodatabase #Howtoaddrecordindjangodatabase

  • Python Tkinter Widgets | How to use Python Tkinter Widgets to create GUI ?

    Create Your First GUI Application First, we will import the Tkinter package and create a window and set its title: Output window look like that: Add button in above window: create button click and pass command clicked() Display result using clicked command and display result by method: Result: Then you can add your values to the combobox: If you have any doubts or need programming help in Tkinter Please contact us now : https://www.codersarts.com/contact #Howtomaketkinterwidgets #usingtkinterwidgetsinpython #GUIhelpinpython #OnlineGUIhelp #HowtomakeGUIApplicationpython #CreatesimpleGUIApplication #CreateaadvancedGUIapplication #PythonGUIexample #GUIprogrammingwithpython #IntroductiontoGUIwithTkinter #GraphicalUserinterfaceinpython

  • Python programming | Python Homework or Collage Homework Help | Python Assignment Help

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  • Sql Server Assignment, Query Help - Codersarts

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