Python标准库中容器的命名约定

Question

考虑Python标准库中不同类型的containers使用的命名约定：

为什么有些方法遵循camel case，而其他方法如deque和defaultdict则不遵循？这些方法在解释这种差异方面有什么不同

如果是因为约定在某个时候发生了变化，那么为什么模块（例如）不向alias提供旧名称的驼峰大小写名称呢

Answer 1

通常在python中，类名遵循“pascal”case约定，方法/函数遵循“snake”case约定。 但以下是来自https://www.python.org/dev/peps/pep-0008/的官方参考：

Package and Module Names

Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability. Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.

When an extension module written in C or C++ has an accompanying Python module that provides a higher level (e.g. more object oriented) interface, the C/C++ module has a leading underscore (e.g. _socket).

Class names

Class names should normally use the CapWords convention.

The naming convention for functions may be used instead in cases where the interface is documented and used primarily as a callable.

Note that there is a separate convention for builtin names: most builtin names are single words (or two words run together), with the CapWords convention used only for exception names and builtin constants.