Add new challenges

Author: laike9m

challenges/advanced-generator/question.py

@@ -0,0 +1,20 @@
+"""
+TODO:
+
+`gen` is a generator that yields a integer, and can accept a string sent to it.
+It does not return anything.
+"""
+
+
+def gen():
+    """You don't need to implement it"""
+    ...
+
+
+## End of your code ##
+from typing import assert_type
+
+generator = gen()
+assert_type(next(generator), int)
+generator.send("sss")
+generator.send(3)  # expect-type-error

challenges/advanced-generator/solution.py

@@ -0,0 +1,22 @@
+"""
+TODO:
+
+`gen` is a generator that yields a integer, and can accept a string sent to it.
+It does not return anything.
+"""
+
+from collections.abc import Generator
+
+
+def gen() -> Generator[int, str, None]:
+    """You don't need to implement it"""
+    ...
+
+
+## End of your code ##
+from typing import assert_type
+
+generator = gen()
+assert_type(next(generator), int)
+generator.send("sss")
+generator.send(3)  # expect-type-error

challenges/advanced-type/question.py

@@ -0,0 +1,25 @@
+"""
+TODO:
+
+`make_object` takes a class returns an instance of it.
+"""
+
+
+def make_object(cls):
+    return cls()
+
+
+## End of your code ##
+class MyClass:
+    pass
+
+
+def f():
+    pass
+
+
+c = make_object(MyClass)
+c = make_object(int)
+c = make_object(f)  # expect-type-error
+c = make_object("sss")  # expect-type-error
+c = make_object(["sss"])  # expect-type-error

challenges/advanced-type/solution.py

@@ -0,0 +1,27 @@
+"""
+TODO:
+
+`make_object` takes a class returns an instance of it.
+"""
+
+from typing import Any
+
+
+def make_object(cls: type[Any]):
+    return cls()
+
+
+## End of your code ##
+class MyClass:
+    pass
+
+
+def f():
+    pass
+
+
+c = make_object(MyClass)
+c = make_object(int)
+c = make_object(f)  # expect-type-error
+c = make_object("sss")  # expect-type-error
+c = make_object(["sss"])  # expect-type-error

challenges/basic-kwargs/question.py

@@ -0,0 +1,14 @@
+"""
+TODO:
+
+`foo` takes keyword arguments of type integer or string.
+"""
+
+
+def foo(**kwargs):
+    ...
+
+
+## End of your code ##
+foo(a=1, b="2")
+foo(a=[1])  # expect-type-error

challenges/basic-kwargs/solution.py

@@ -0,0 +1,14 @@
+"""
+TODO:
+
+`foo` takes keyword arguments of type integer or string.
+"""
+
+
+def foo(**kwargs: int | str):
+    ...
+
+
+## End of your code ##
+foo(a=1, b="2")
+foo(a=[1])  # expect-type-error

challenges/intermediate-await/question.py

@@ -0,0 +1,29 @@
+"""
+TODO:
+
+`run_async` takes an awaitable integer.
+"""
+
+
+def run_async():
+    ...
+
+
+## End of your code ##
+from asyncio import Queue
+
+queue: Queue[int] = Queue()
+queue2: Queue[str] = Queue()
+
+
+async def async_function() -> int:
+    return await queue.get()
+
+
+async def async_function2() -> str:
+    return await queue2.get()
+
+
+run_async(async_function())
+run_async(1)  # expect-type-error
+run_async(async_function2())  # expect-type-error

challenges/intermediate-await/solution.py

@@ -0,0 +1,31 @@
+"""
+TODO:
+
+`run_async` takes an awaitable integer.
+"""
+
+from typing import Awaitable
+
+
+def run_async(func: Awaitable[int]):
+    ...
+
+
+## End of your code ##
+from asyncio import Queue
+
+queue: Queue[int] = Queue()
+queue2: Queue[str] = Queue()
+
+
+async def async_function() -> int:
+    return await queue.get()
+
+
+async def async_function2() -> str:
+    return await queue2.get()
+
+
+run_async(async_function())
+run_async(1)  # expect-type-error
+run_async(async_function2())  # expect-type-error