cout & cerr like in C++

Usge:

from stdcpp import cout, cerr, endl

cout << "Hello" << " " << "world!" << endl
cerr << "Hello" << " " << "world!" << endl

Bonus 1:

from stdcpp import Stream

s = Stream('log.txt', 'a+')
s << "Hello "
s.close()

with Stream('log.txt', 'a+') as s:
    s << "world!" << endl

Bonus 2:

import io
from stdcpp import Stream, cout

ios = io.StringIO()
s = Stream(ios)
s << "Hello world!" << endl
ios.seek(0)
cout << ios.read()

Bonus 3:

from stdcpp import coutln, cerrln

coutln << "Hello world!"
cerrln << "Hello world!"

Bonus 4:

from stdcpp import cdbg

x = 123
y = 'foobar'

cdbg << x << y

result:

x: int = 123
y: str = 'foobar'