Python is one of the most popular programming languages that sees widespread usage by developers all around the world. If you are a beginner at programming and want to start off your journey with Python, the best way to go about it is to get a Python Certification course. In courses like that, you will have to learn about some essential basics and concepts of Python so that you can start coding wonderful projects.
What is Python?
Python can be looked at as a popular programming language meant for general purposes and finds its use in many different applications. These may include dynamic typing, high-level data structures, dynamic binding as well as many other features. All these ensure that it becomes useful for complex application development as well as for scripting or “glue code” which helps in binding the components together. You can also extend it to make system calls to almost any OS and run code written in C. Here are some of the essential Python skills you need for a Python Certification:
Using Python Shell:
The most useful aspect of Python is that it comes automatically installed in its own shell. The shell can be run by simply keying in “Python” from the command line. On doing this, you can find the copyright notice, default version number as well as three arrows. Now in case multiple versions of Python are installed in the same system, you will need to enter the version number of the Python to get the correct information. So what makes the Python shell useful? Essentially, it enables you to test simple commands separately. In many cases you will be able to detect if there will be a syntax error or a logic error in an instruction you want to use before it is tested in a huge script that can consume memory or take a long time.
Using Generators:
Generators in Python give us the advantageous concept of automated evaluation, so when we “build” the generator we don’t actually evaluate a value inside it unless it’s really necessary. One of the biggest advantages of this evaluation is the memory footprint. If we build a generator that includes the numbers 1 to N for a large N and our code ends up needing only the first three numbers, then Python doesn’t need to build and store the remaining numbers in the set.
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File management:
With many Python scripts that use files as input, it’s important to know the correct ways to embed files in your code. The official documentation explains that the open keyword is used for this purpose. It’s pretty simple and we can go through the file to parse it line by line. Alternatively, we can use the readlines() method to generate a list that includes each line in the file, but be careful if the file is large.
The process of getting your Python Certification will teach you many such essentials that you will need in order to become a great Python developer.
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