Проверка 1-9 — Введение в Python

Review 1-9. Check yourself

Intro

• I ask you a question. Do pause and think about the answer.
• Unpause and check yourself.
• There are no code provided
• Refer to previous lessons
• Ask if you have any problems

Strings

• What kind of strings does Python have?
• Can we read or write a symbol by index?
• How to split a string into a list?
• How to combine a list into a string?
• How to turn 8-bit string into a unicode?
• How to turn a unicode into a 8-bit string?
• What do you think about "ABC" == u"ABC"?

Collections

• What is the difference b/w a list and a tuple?
• How to reduce duplicates in a list?
• How to split a tuple (1, 2, 3) on three vars a, b, c?
• How to sort a list of dicts by a specific key?
• What can be a key of a dictionary?
• There are a list of keys and a list of values. Make a dict.

Functions

• What are *args, **kwargs? What types do they have?
• What is wrong with def foo(bar=[])?
• What does a func return if there is no return statement?
• Can we pass a function into a function?
• Can we declare a function inside a function?
• What limitations does lambda have?
• Can I write lambda: raise Exception('error')?

Iteration and generators

• What is the diff b/w [x for x in ...] and (x for x in ...)?
• How to declare a generator?
• How to turn a generator into a tuple/list?
• Can we access a generator's element by index?
• What does return an iteration by a dict?
• How to iterate a dict by a (key, value) pair?

Congratulations! You are awesome!