python-cheatsheet

工具介绍

综合Python 计费表

核心特点

• •For details about sort(), sorted(), max() and min() see Sortable.
• •Module operator has function itemgetter() that can replace listed lambdas.
• •This text uses the term collection instead of iterable. For rationale see duck types.
• •Frozenset is immutable and hashable version of the normal set.
• •That means it can be used as a key in a dict or as an item in a set.
• •For loops call 'iter(<coll/iter>)', latter returning unmodified iterator.
• •Any function that contains a yield statement returns a generator.
• •Generators and iterators are interchangeable (see Iterator duck type).
• •All values in Python are objects.
• •Every object has a certain type.