The Python language has many similarities to Perl, C, and Java. However, there are some definite differences between the languages. Python Identifiers Python Identifier is the name we give to identify a variable, function, class, module or other object. That means whenever we want to give an entity a name, that’s called identifier. There are …
Python is completely object oriented, and not “statically typed”. You do not need to declare variables before using them, or declare their type. Every variable in Python is an object. Based on the data type of a variable, the interpreter allocates memory and decides what can be stored in the reserved memory. Therefore, by assigning …
What Are Operators in Python? Operators are special symbols in Python that carry out arithmetic or logical computation. The value that the operator operates on is called the operand. For example: In this case, the + operator adds the operands a and b together. An operand can be either a literal value or a variable that references an object: A sequence …
Python 3 Operators: Arithmetic, Comparison, Logical and More Read More »
In a Python program, the if statement is how you perform this sort of decision-making. It allows for conditional execution of a statement or group of statements based on the value of an expression. The outline of this tutorial is as follows: First, you’ll get a quick overview of the if statement in its simplest form. Next, using the if statement …
Python 3 Conditional Statements: If, If Else and Nested If Statements Read More »
Number data types store numeric values. They are immutable data types. This means, changing the value of a number data type results in a newly allocated object. Python supports integers, floating point numbers and complex numbers. They are defined as int, float and complex class in Python. int (signed integers) − They are often called just integers or ints. They are positive …
Python 3 Numbers: Type Conversion and Mathematics Functions Read More »
Strings are one of the most basic data types in Python, used to represent textual data. Almost every application involves working with strings. Define a String We can create them simply by enclosing characters in quotes. Python treats single quotes the same as double quotes. Creating strings is as simple as assigning a value to …
Python 3 Strings: String Definition, Operators and Formattings Read More »
In the previous section, we got to know the list in Python. Python provides another type that is an ordered collection of objects, called a tuple. The main difference between the tuples and the lists is that the tuples cannot be changed unlike lists. How To Define Tuples We can define tuples with parentheses, the example code …
What Is Dictionary In Python? In the previous chapters, we introduced the two compound types, lists and tuples in Python. In this chapter of our python 3 tutorial, we will present the dictionary type, which is an unordered collection of items in Python. Like lists, dictionary is also mutable and changeable. Dictionaries and lists have the following same characteristics: Both …
What Is a Set In Python Before learning sets in Python, let’s first recall the concept of sets in mathematics. Simply put, the set is “a bunch of certain elements”. We can use the Venn Diagram to represent the relationship between sets. For example: In Python, a set is an unordered sequence of elements, and …
A list is one of the most important data structures in Python. It is an ordered sequence of elements which is mutable and changeable. Each element that is inside of a list is called an item, and all the items are placed inside a square bracket [ ], separated by commas. In general, the list in …
