Data Analytics and Video Tutorials
This programming language helps to analyse data and show the output in a way that is easily used.
In Python, a variable’s scope determines where the variable can be accessed from within a program. The two main scopes for variables are local and global. What are Local Variables? Local variables are defined within a function and can only be accessed within that function. They are not accessible outside the function. Once the function…
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The exact number of Python functions is not fixed as it can change with new versions of Python and the addition of new modules and packages. Python is an open-source language with a large standard library and an active community of developers who are constantly adding new features and functions. The Python Standard Library alone…
Lambda functions are anonymous functions that take any amount of arguments as their input, but can only have one expression. Let’s look at the function further Lambda functions are anonymous and are usually classified as user-defined functions but without a name. One thing that makes Lambda functions different from regular functions is that they do…
If you are working with files and trying to open them to read in their contents, sometimes errors will pop in that may not immediately be obvious how to resolve. In this blog post, we discuss a TypeError that is associated with opening a file in Python and reading in its contents. So how may…
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In our latest post, we are going to discuss formatting issues that you may come across. It relates to how you format the data when passing it from the input of a user. This scenario can happen as a result of user input, which then has some comparisons completed on it. How does the problem…
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Sometimes you need a function that will help you to aggregate or combine severable iterables in one go. When we read the official Python documentation it states that using zip ” Iterates over several iterables in parallel, producing tuples with an item from each one.” So what does that actually mean? Well in essence essentially…
To start off passing by reference basically means that you are telling the program you have written to pass a variable to a function. When passing arguments to a function, it is important to understand the meanings first. As a result, when you pass by reference to a function, the variable data gets processed and…
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You have been probably looking at large sets of data for a while, and projects to extract insights from them. If you are given a set of data that is so large you may need something more! This is where Apache Spark comes in! So what does Apache Spark do? It performs the following functions:…
In our last example of working with dictionaries, we showed you How To Delete a Set of Keys From a Python Dictionary. This is a very useful scenario if you want to tidy up the dictionary and remove data not required. Following on from that, in this post, we are going to look at changing…
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This is an addition to the list of questions you may get when in an interview and you are asked to give an overview of Python. As with how to create an empty dictionary in Python, how to add values to a python dictionary, and how to sort a python dictionary we will take you…