What are the advantages in using a Python class?

Rajendra Dharmkar
Updated on 30-Mar-2023 19:26:21
Python is a powerful programming language that has many tools and features for developers. One of these tools is the ability to create classes. In this section, we'll explore some advantages of using classes in Python, with code examples. Classes are a mechanism to organize your code into generic, reusable peices of code. At their best they are reusable code snippets that will be used over and over again with little or no modification. The class concept was inspired by biological collections of features (attributes) and abilities (methods). Functions are great to use when data is critical ... Read More

How to match parentheses in Python regular expression?

Rajendra Dharmkar
Updated on 30-Mar-2023 19:24:27
If you need to match parentheses in a regular expression in Python, you can use a backslash (\) character followed by the left or right parenthesis. This is because parentheses have a special meaning in regular expressions, so they need to be escaped in order to match them literally. Here's an example: Example In this example, we import the re module, define a regular expression pattern that matches a left parenthesis followed by the word "Hello" and a right parenthesis, and define a test string. We then use the re.findall() function to find all matches of the regular expression ... Read More

Why and how are Python functions hashable?

Rajendra Dharmkar
Updated on 30-Mar-2023 19:01:43
An object is said to be hashable if it has a hash value that remains the same during its lifetime. It has a __hash__() method and it can be compared to other objects. For this, it needs the __eq__() or __cmp__()method. If hashable objects are equal when compared, then they have same hash value.Being hashable renders an object usable as a dictionary key and a set member as these data structures use hash values internally.All immutable built-in objects in python are hashable. Mutable containers like lists and dictionaries are not hashable while immutable container tuple is hashableObjects which are instances ... Read More

Differences between Magnitude and Intensity

Vineet Nanda
Updated on 30-Mar-2023 18:16:37
When we talk about physical quantities, it is essential to understand the difference between magnitude and intensity. In simple terms, magnitude refers to the size or quantity of something, whereas intensity is a measure of how strong or powerful it is. In this essay, we will explore the key differences between magnitude and intensity and their applications in different fields of science and engineering. What is Magnitude? Magnitude refers to the size or quantity of something. It is a scalar quantity that can be measured or expressed in terms of a numerical value. For example, the magnitude of a vector ... Read More

Difference Between Collagen and Biotin

Vineet Nanda
Updated on 30-Mar-2023 18:15:19
Collagen and biotin are two essential substances for maintaining a healthy body. Both collagen and biotin play a vital role in maintaining healthy skin, hair, nails, and joints. However, there are many differences between the two substances, including their functions, sources, and benefits. What is Collagen? Collagen is a type of protein that makes up about one-third of the total protein in the human body. It is the primary component of connective tissues such as skin, tendons, cartilage, and bones. Collagen is responsible for giving skin its elasticity and strength and for maintaining the structure of bones and joints. As ... Read More

Similarities and Differences between Memory T Cells and Memory B Cells

Gayatri Talakokkula
Updated on 30-Mar-2023 18:13:35
Introduction Memory cells are long-lived immune cells capable of recognizing foreign particles that they had encountered previously. Memory cells capture the antigen or components of foreign antigen that invades our body and provides protection against them very fast when compared to the initial attack. Antigen exposure and its immune response usually 2 types Initial Exposure – Primary immune response, here the memory does not take part in providing an immune response. Secondary Exposure (when a similar kind or same antigen attacks the immune system) – Here memory cells start initiating the secondary immune response Here the time ... Read More

Plasma - Amber-Colored Liquid Component of Blood

Gayatri Talakokkula
Updated on 30-Mar-2023 18:09:53
Introduction Blood plasma is the fluid portion of the blood which is usually transparent and straw-colored. The importance of blood is mainly due to the plasma as it is the one which carries a lot of important material and transports it throughout the body. Plasma is usually isolated as a clear fluid along with the RBC, WBC, and platelets when we centrifuge the blood. RBCs are the heaviest and usually settle down at the bottom of the centrifuge tube, white viscous coat found in the middle contains WBCs and platelets and the upper layer of the tube contains plasma. ... Read More

Plant Growth Regulators and Their Mode of Action

Gayatri Talakokkula
Updated on 30-Mar-2023 18:04:18
Introduction Plant growth regulators which are also called plant hormones are the ones that regulate the growth of a plant. These PGRs act as signaling molecules. These PGRs are produced within the plant in extremely low concentrations. These hormones are produced by the cells of a plant and not all regulate the growth of the plant but also determine the formation of other parts of the plant like flowers, leaves, shedding of leaves, development, and ripening of fruits, etc. In short, PGRs control all the physiological processes within the plants. Types of Plant Growth Regulators and their Mode of ... Read More

Difference Between Chlamydia and Herpes

Vineet Nanda
Updated on 30-Mar-2023 17:58:36
Sexually transmitted infections (STIs) are a common concern for sexually active individuals. Among the various types of STIs, Chlamydia and Herpes are two of the most frequently reported. Though both of these infections can be transmitted through sexual contact, they are caused by different microorganisms and exhibit distinct symptoms. This essay aims to describe the difference between Chlamydia and Herpes in detail. What is Chlamydia? Chlamydia infections are either respiratory (caused by C. pneumoniae), or genital (caused by C. trachomatis). In either type of infection, pain and inflammation result in the area of infection, and both infections can be ... Read More

Difference Between Chipmunk and Gopher

Vineet Nanda
Updated on 30-Mar-2023 17:56:34
Chipmunks and gophers are two small mammals that belong to different families. While they may look similar at first glance, there are several differences between these two animals that set them apart. What are Chipmunks? A chipmunk is a type of rodent that is in the genus Tamias and can be recognized by the presence of dark stripes on the face and the long bushy tail. These animals are also in the same family, Sciuridae, as the squirrels and are therefore quite closely related. Distribution and habitat − Chipmunks are found in North America (most of the species) and ... Read More
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