On thisPython-Tutorial, we will talk in detailPython naming conventions. How to usePython naming conventionin the case of the class,Variable, functions, object, filename, module, constant, package, global, variable, etc.
In my last blog we discussedHow to split a string using regular expressions in Python.
We will also discuss the following topics here.
- How to choose a function name in Python?
- What are theNaming conventions for variables in Python?
- How do I name a class in Python?
- What should my Python file name be?
- What should the name of a method be in Python?
- Constant naming convention in Python
- How do I name a package in Python?
- Object naming convention in Python
- What should my module name be in Python?
- Naming Convention for Global Variables in Python
- What is Python in Snake_case naming style?
- Do not ignore method arguments.
In Python there are certain rules that we must follow when naming components. Let's look at these one by one.
table of contents
Python naming conventions
naming rulesthey are very important and useful in any programming language. Here we will see differentPython naming conventionsthat we should use when programming in Python.
How to choose a function name in Python?
There are certain rules that we must follow during this period.Naming a Function in Python.
- Rule 1:we must write thempython functionnames with everythingsmall letters.
- Rule-2: Do not use capital letterswhen naming a function in Python.
- Rule 3:To usehighlight(_)between words instead of spaces when naming a function.
Example:
def my_function(): print("This is how we should use the function name") def Critical_function(): print("Best function name") def new_data(): print("Best function name")Variable naming convention in Python or What are the variable naming conventions in Python?
Python naming conventions for variablesThe names are the same as the function names.
There are some rules that we must follow when naming aPython variable.
- rule 1: Must start the variable name with a letter orhighlight(_)Character.
- Rule-2:A variable name can only containA-Z, a-z, 0-9Yhighlight(_).
- Rule 3:The variable name must not start with aNumber.
- Rule-4:You cannot use special characters with the variable name, like B use$,%,#,&,@.-,^etc.
- rule-5: variable names areBe aware of uppercase and lowercase letters. For example, str and str are two different variables.
- Rule-6:Don't use fallback keyword like variable names for e.g. keywords likeclass for def del is moretry frometc.
#Erlaubte Variablennamenx=2y="Hola"mypython="PythonGuides"my_python="PythonGuides"_my_python="PythonGuides"_mypython="PythonGuides"MYPYTHON="PythonGuides"myPython="PythonGuides"myPython7="PythonGuides"#Variablenname nicht erlaubt7mypython="PythonGuides"-mypython="PythonGuides"myPy@thon="PythonGuides"my Python="PythonGuides"for="PythonGuides"Sampleinvalid syntax. It will run in sequence and show the error.
File:How to find sum of digits of a number in Python
How to name a class in Python
Python naming conventionsbecause the classes are the same as in any other programming languageC#.neto C++.
There are certain rules that we must follow when naming the class.Python.
The program looks great if you give the class a real name because the program starts with the class.
- Rule 1:we must follow thisthe carmel caseConvention
- Rule-2:When writing classes for an exception, this name must start with "Error“.
- Rule 3:If you call the class from somewhere oravailablethen you can specify a class name like in this caseFunction.
- Rule-4:Inner classes in Python are withsmall letters.
Example:
Klasse MyClassclass Helloclass InputErrorWhat should my Python file name be?
There are certain rules we need to follow while naming the file in Python.
- Rule 1:We must choose oneshort nameas file name.
- Rule-2:you must use them allsmall letterswhen specifying a name for a file.
- Rule 3:we can also usehighlight(_)with the file name.
What should the name of a method be in Python?
There are certain rules that we must follow when deciding on a name.method in python.
- Rule 1:you must use them allsmall letterswhen specifying a name for a method.
- Rule-2:If your method name contains multiple words, they must be separated by ahighlight(_).
- Rule 3:Non-public method names must begin with an underscore (_).
- Rule-4:If you want to change the name of a method, in this case we can use twounderscores (_)at the beginning.
Constant naming convention in Python
There are certain rules that we must follow when naming a constant.
- Rule 1: constant namemust be in pythonuppercaseAlways.
- Rule-2:If your constant name contains multiple words, they must be separated by ahighlight(_).
How do I name a package in Python?
There are certain rules that we must follow when naming a package.
- Rule 1:you must use them allsmall letterswhen specifying a name for a package.
- Rule-2:If your method name contains multiple words, they must be separated by ahighlight(_).
- Rule 3:It's always better to use asingle wordForpackage name.
Object naming convention in Python
There are certain rules we need to follow when naming the object in Python.
- Rule 1:you must use them allsmall letterswhen specifying a name for an object.
- Rule-2:choose a lotshort name.
- Rule 3:If your object name contains multiple words, they must be separated by ahighlight(_).
What should my module name be in Python?
There are certain rules that we need to follow when naming the module in Python.
- Rule 1:you must use them allsmall letterswhen specifying a name for a module.
- Rule-2:If your module name contains multiple words, they must be separated by ahighlight(_).
- Rule 3:It's always better to use asingle wordFormodule name.
Naming Convention for Global Variables in Python
There are certain rules that we must follow when naming aGlobal variable.
- Rule 1:you must use them allsmall letterswhen specifying a name for an object.
- Rule-2:If your global variable name contains multiple words, they must be separated by ahighlight(_).
What is Python in Snake_case naming style?
This is a format. If the Python object name contains multiple words, they must be separated by ahighlight(_).
If we separate a compound word withhighlight(_)instead of spaces, this is known assnake_case-Python style name.
Example:
Hello_WorldMy_Instance_NameDo not ignore method arguments
- Rule 1:Use the argument named "self" as the first argument for instance methods.
- Rule-2:For class methods, use "cls" as the first argument.
General rules for Python naming conventions
- Rule 1:Always give all Python objects a meaningful distinguished name. Do not include names like x, y or z, etc.
- Rule-2:Do not write a space between object names instead of usinghighlight(_)when there are gifts of more than one word.
- Rule 3:It's best to only use camelCase when it makes sense, or try to avoid using camelCase.
You may like the following Python tutorials:
- Why is Python so popular? Why Python is Booming
- How does Python work? How is Python interpreted?
- Steps to download and install Python
- How to create a string and assign it to a variable in Python
- Programa Python Hello World
- How to split a string using regular expressions in Python
- How to concatenate strings in Python
Diploma:
Pythonit is the most popular open sourceObject-oriented programming languageand it is easy to learn and syntactically very simple.
We must write the function name with alllower case.You must not start the variable name with aNumber.
we must follow thisthe carmel caseConvention when naming a class.
you must use them allsmall letterswhen specifying a name for a method. The name of a non-public method must start with ahighlight(_).
we all should usesmall letterswhen specifying a name for an object.
Start a variable name with a letter orhighlight(_)Character.
We must choose oneshort namelike filename and allsmall lettersCharacter.
This Python tutorial explains the following points:
- How to choose a function name in Python?
- What are the naming conventions for variables in Python?
- How do I name a class in Python?
- What should my Python file name be?
- What should the name of a method be in Python?
- Constant naming convention in Python
- How do I name a package in Python?
- Object naming convention in Python
- What should my module name be in Python?
- Naming Convention for Global Variables in Python
- What is Python in Snake_case naming style?
- Do not ignore method arguments.
- General rules for Python naming conventions.
Bijay Kumar
Python is one of the most popular languages in the United States of America. I've been working with Python for a long time and I have experience working with different libraries in Tkinter, Pandas, NumPy, Turtle, Django, Matplotlib, Tensorflow, Scipy, Scikit-Learn, etc. I have experience working with different clients in countries such as the United States, Canada, United Kingdom, Australia, New Zealand, etc.check my profile.
FAQs
What is the naming convention Python functions? ›
Function names should be lowercase, with words separated by underscores as necessary to improve readability. Variable names follow the same convention as function names. mixedCase is allowed only in contexts where that's already the prevailing style (e.g. threading.py), to retain backwards compatibility.
What is the official style guide for Python? ›PEP-8, or Python Enhancement Proposal, is the style guide for Python programming. It was written by Guido van Rossum, Barry Warsaw, and Nick Coghlan. It describes the rules for writing a beautiful and readable Python code.
What are the five rules for naming variables? ›A variable name must start with a letter or an underscore character (_) A variable name cannot start with a digit. A variable name can only contain alpha-numeric characters and underscores ( a-z, A-Z , 0-9 , and _ ) Variable names are case-sensitive (age, Age and AGE are three different variables)
What are the 3 things to consider in establishing a naming convention? ›Elements to consider using in a naming convention are:
Location. Project name or number. Sample. Analysis.
- Python Built-in Functions.
- Python Recursion Functions.
- Python Lambda Functions.
- Python User-defined Functions.
- Keep file names short but meaningful.
- Include any unique identifiers, e.g. case number, project title.
- Be consistent.
- Indicate version number where appropriate.
- Ensure the purpose of the document is quickly and easily identifiable.
- Choose a word with meaning (provide some context)
- Avoid generic names (like tmp )
- Attach additional information to a name (use suffix or prefix)
- Don't make your names too long or too short.
- Use consistent formatting.
Tons of style guides exist across industries and genres, and new ones pop up frequently. Most writers will encounter four commonly used guides: AP style for journalism, Chicago style for publishing, APA style for scholarly writing and MLA style for scholarly citation (more on each of these below).
What is the best practice for naming variables? ›- Be clear and concise.
- Be written in English. ...
- Not contain special characters. ...
- Not conflict with any Python keywords, such as for , True , False , and , if , or else .
There are different types of variables and having their influence differently in a study viz. Independent & dependent variables, Active and attribute variables, Continuous, discrete and categorical variable, Extraneous variables and Demographic variables.
What are the 6 types of variables? ›
- Categorical variables. A categorical variable (also called qualitative variable) refers to a characteristic that can't be quantifiable. ...
- Nominal variables. ...
- Ordinal variables. ...
- Numeric variables. ...
- Continuous variables. ...
- Discrete variables.
- Start the name with a lowercase letter and capitalize the first letter of embedded words. ...
- For methods that represent actions an object takes, start the name with a verb: ...
- If the method returns an attribute of the receiver, name the method after the attribute. ...
- Use keywords before all arguments.
A typical account naming convention in this scenario is one similiar to Usability and is based on full name, such as “Public, John Q.” (e.g. jqpublic) or “Jane Doe” (e.g. jdoe). In the event of a collision, a numerical value is typically appended to the username (e.g. jdoe2).
What are the 7 types of functions? ›- One – one function (Injective function)
- Many – one function.
- Onto – function (Surjective Function)
- Into – function.
- Polynomial function.
- Linear Function.
- Identical Function.
- Quadratic Function.
The eight types are linear, power, quadratic, polynomial, rational, exponential, logarithmic, and sinusoidal.
What are the 8 basic functions? ›There are eight different types of functions that are commonly used, therefore eight different types of graphs of functions. These types of function graphs are linear, power, quadratic, polynomial, rational, exponential, logarithmic, and sinusoidal.
What are naming conventions examples? ›Examples of naming conventions may include: Children's names may be alphabetical by birth order. In some Asian cultures, siblings commonly share a middle name. In many cultures the son is usually named after the father or grandfather.
What are the 4 components of conventions? ›There are four major components of the convention industry namely; planners and groups they represent, host facilities, services and exhibitors. Planners are individuals or group that plan meetings, conventions and exhibitions.
What are the types of naming convention? ›- Snakecase: Words are delimited by an underscore.
- Pascalcase: Words are delimited by capital letters.
- Camelcase: Words are delimited by capital letters, except the initial word.
The benefit is quite obvious – when you name your files in a certain way, then you make them easy to find. Using this logic, programmers have built a plethora of Digital Asset Management (DAM) solutions that cater to the needs of marketing and creative teams.
Why are naming conventions important? ›
File naming conventions help you stay organized and makes it easier to identify your files. By consistently organizing your files, you will be able to quickly find what you need. And in a shared or collaborative group file-sharing setting, it will help others more easily navigate your work.
Why is it important to observe naming conventions? ›Naming conventions make sure users know how to name digital assets so that filenames or titles are consistent and contain all the right information. They help you store and organise your files. Without them, your asset library can become chaotic and make it much harder to find images when you need them.
What are the 5 style guides? ›- Economist Style Guide:
- Chicago Manual of Style:
- American Psychological Association:
- Modern Language Association:
- The Associated Press Stylebook:
- Associated Press Style. The Associated Press style guide (commonly know as AP style) is employed in the majority of journalistic and news writing. ...
- Chicago Manual of Style. ...
- Publication Manual of the American Psychological Association. ...
- MLA Handbook. ...
- Alternative and Niche Style Guides.
A style guide is essential to keep your brand identity consistent, recognizable, and ownable, even as several different people develop content for your brand. Since a style guide defines the guidelines for maintaining a brand's identity, it's important to spend the time and resources to get it right.
What are the 6 essential elements of a brand style guide? ›There are six essential elements to the brand guidelines you create: brand story, logo, color palette, typography, image guidelines, and tone of voice. They make up the DNA of your Brand Style Guide. You may already have some of them in place.
What should a design guide include? ›Design guidelines can consist of typography rules (from spacing to specific typefaces), brand color palettes, and iconography rules. To give writers and editors a better understanding of your brand identity, consider giving them a copy of your brand book.
What are the contents of a style guide? ›A brand style guide is a holistic set of standards that defines your company's branding. It references grammar, tone, logo usage, colors, visuals, word usage, point of view, and more.
What is the difference between style sheet and style guide? ›A style sheet is short (usually only one page) and lists very specific items, such as preferred spellings of particular words. A style guide is a comprehensive set of rules to keep everything consistent.
What is the difference between a style guide and a template? ›For the Style Guide we have categories such as Use of Text, Multimedia content, uploaded content, and HTML style elements. For the template there are many components such as home page, welcome page, Syllabus page, course navigation, etc. Many of the elements are blending together.
What are the style guide principles? ›
They are high level principles that guide the detailed design decisions you make as you're working on a project. Our 4 principles are: Empathy, Clarity & Efficiency, Consistency and Beauty.
What are best naming conventions? ›- Keep file names short, but meaningful.
- Make use of consistent, relevant elements.
- Avoid special characters and spaces.
- Document and share the file naming convention.
- Logical file organisation.
Naming conventions. Short but meaningful names. Avoid repetition and redundancy. Use capital letters to delimit words. Use two digit numbers.
What is the typical naming convention? ›The standard naming conventions used in modern software development are as follows: Pascal case. camel case. snake case.
What is the best naming convention for programming? ›...
They are:
- Camel Case.
- Snake Case.
- Kebab Case.
- Pascal Case.
Naming conventions reduce the effort needed to read and understand source code. Naming conventions let the programmer focus on more important issues than syntax and naming standards. Naming conventions facilitate and let programmers share their code with each other without losing focus on formatting.
What are the basic rules for naming elements? ›(i) The names should be short and obviously related to the atomic numbers of the elements. (ii) The names should end in 'ium' whether the element was expected to be a metal or otherwise. (iii) The symbols for the systematically named elements should consist of three letters.
How should I name my variables? ›- Be clear and concise.
- Be written in English. ...
- Not contain special characters. ...
- Not conflict with any Python keywords, such as for , True , False , and , if , or else .
- According to PEP8: Class names must follow CamelCase naming (Each new word is capitalized without underscore) ...
- According to PEP8, function and variable names should be lowercase with words separated by underscores.
Each language has its own naming conventions that specify the use of programming tokens. Camel case (ex: camelCase) is usually for variables, properties, attributes, methods, and functions. Snake case (ex: snake_case) is commonly used in scripting languages like Python and as a constant in other C-styled languages.
Should Python naming conventions be camelCase or underscore? ›
PEP8 is Pythons official style guide and it recommends : Function names should be lowercase, with words separated by underscores as necessary to improve readability.