Rules for Python variables:A variable name must start with a letter or the underscore character A variable name cannot start with a number A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ ) Variable names are case-sensitive (age, Age and AGE are...
Choose meaningful names, such as roll_no, which is clearer than rn. Avoid unnecessarily long variable names (e.g., Roll_no_of_a_student is too long). Be consistent in your naming convention: roll_no or RollNo, but not both. Start variable names with an underscore (_) when you need...
Rules for Naming VariablesVariable names in Python can be any length and can consist of uppercase letters (A-Z) and lowercase letters (a-z), digits (0-9), and the underscore character (_). The only restriction is that even though a variable name can contain digits, the first character...
The concept of scope rules how variables and names are looked up in your code. It determines the visibility of a variable within the code. The scope of a name or variable depends on the place in your code where you create that variable. The Python scope concept is generally presented ...
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...
String variable List type variable Get the data type of variable Delete a variable Variable’s case-sensitive Constant Assigning a value to a constant in Python Rules and naming convention for variables and constants Multiple assignments Assigning a single value to multiple variables ...
Beautiful is better than ugly.Explicit is better than implicit.Simple is better than complex.Complex is better than complicated.Flat is better than nested.Sparse is better than dense.Readability counts.Special cases aren't special enough tobreakthe rules.Although practicality beats purity.Errors should...
Rules for naming Python functions:Valid Characters: Function names may contain letters (a-z, A-Z), digits (0-9), and underscores (_). Start with a Letter or Underscore: Function names must begin with a letter (a-z, A-Z) or an underscore (_). Spaces and special characters are not...
There are some rules for making variable names. You can start with a letter or an underscore.We tend not to as normal programs use underscore.We tend to reserve for an variables that we use to communicate with python itself. So we're making up a variable. We can not use underscores as...
_global_variable = 42 # 模块非公开的全局变量 __all__ = ['public_variable'] # 通过 from module import * 导入的公开变量列表 public_variable = 10 # 公开的全局变量 Function and Variable Names|函数和变量的命名 函数名应该是小写的,单词之间可以用下划线分隔以提高可读性。 变量名遵循与函数名相同的...