The dir() function returns list of the attributes and methods of any object like functions , modules, strings, lists, dictionaries etc. In this article we will see how to use the dir() in different ways in a program and for different requirements.Only dir()When we print the value of the dir() ... Read More

Multiplying two lists in python can be a necessity in many data analysis calculations. In this article we will see how to multiply the elements of a list of lists also called a nested list with another list.Using LoopsIn this approach we design tow for loops, one inside another. The ... Read More

Sometimes when creating a matrix using python we may need to control how many times a given element is repeated in the resulting matrix. In this articled we will see how to create a matrix with required number of elements when the elements are given as a list.Using zipWe declare ... Read More

Pandas is a very widely used python library for data processing and data analysis. In this article we will see how we we can create pandas dataframe from given python dictionaries and lists.From dictionary with listsDictionaries are key value pairs. If we take a python dictionary which has key and ... Read More

Pandas creates data frames to process the data in a python program. In this article we will see how we can add a new column to an existing dataframe based on certain conditions.The Given Data FrameBelow is the given pandas DataFrame to which we will add the additional columns. It ... Read More

Python’s wide availability of libraries enables it to interact with Microsoft excel which is a very widely used data processing tool. In this article we will see how we can use the module named xlsxwriter to create and write into a excel file. It cannot write into existing excel file.Writing ... Read More

The Dataframe in pandas can be created using various options. One of the option is to take a dictionary and convert it to a Dataframe. In this article we will see how to take three lists of equal length and convert them to a pandas dataframe using a python dictionary.Uisng ... Read More

Python Tkinter can be used to create all kinds of GUI programs for the web and desktop. In this article we will see how to create a digital clock displaying hour, minute and seconds live.We use the time module to import the method strftime which displays the time in Hour, ... Read More

The progressbar is a common GUI element which is used to show the progress of certain task. In tis article we will see how to create a progressbar using the Python tkinter GUI library.In the below program we have imported the progressbar sub-module of tkinter.ttk module. Then used the style ... Read More

Every programming language has a feature to create scripts and run them from the terminal or being called by other programs. When running such scripts we often need to pass on arguments needed by the script for various functions to be executed inside the script. In this article we will ... Read More