1、使用有意义的变量名（Use meaningful variable names）# Bad codex = 10y = 20# Good codestudent_count = 10teacher_count = 20 "Use meaningful variable names" 是 Python 中的一条编码原则，指的是使用有意义的变量名。中文可以翻译为“使用有意义的变量名”。在编写代码时，使用有意义的变量名可以使代...
However, there is a convention that is followed by most Python code: a name prefixed with an underscore (e.g. _spam) should be treated as a non-public part of the API (whether it is a function, a method or a data member). It should be considered an implementation detail and ...
1. Python Variable Naming Convention While Python is flexible with variable names, there are a few rules and conventions: Variable names must start with a letter (a-z, A-Z) or an underscore (_). Variable names can contain letters, numbers, and underscores. Variable names are case-sensitive...
By convention, we can use only uppercase characters to define the constant variable if we don’t want to change it. Example MAX_VALUE = 500 It is just convention, but we can change the value of MAX_VALUE variable. Assigning a value to a constant in Python As we see earlier, in the ...
Note that the is_ naming pattern allows you to clearly communicate the variable’s purpose. However, this naming convention is just a common practice and not a requirement or something that Python reinforces.Remove ads Loop VariablesLoop variables help you process data during iteration in for ...
Exception Names Because exceptions should be classes, the class naming convention applies here. However, you should use the suffix "Error" on your exception names (if the exception actually is an error). Global Variable Names (Let's hope that these variables are meant for use inside one module...
It is a Python convention to start your variables with a lowercase letter. This book uses camelcase for variable names instead of underscores; that is, variables lookLikeThis instead of looking_like_this. Some experienced programmers may point out that the official Python code style, PEP 8, ...
Functions that you write can also call other functions you write. It is a good convention to have the main action of a program be in a function for easy reference. The example programbirthday5.pyhas the two Happy Birthday calls inside a final function,main. Do you see that this version ...
Variable is essentially a names entity, a container or a box to store values which can change over its lifetime. In Python, a variable can simply be declared and used without declaring or defining it. 复制 1: number=input('Enter a number:') In Python, the naming convention for varia...
Be consistent in your naming convention: roll_no or RollNo, but not both. Start variable names with an underscore (_) when you need a special case or private variables. Python Assignment Statements Assignment statements create variables and assign values to them. The basic syntax for an assignm...