Python Import Error

pkg-slash-__init__.py

from . import first
from . import hello

pkg-slash-first.py

print('first')

pkg-slash-hello.py

import os
if os.environ.get('BROKEN'):
    raise RuntimeError("Broken module")

run_log.log

> python2 test.py
first
ok
> BROKEN=1 python2 test.py
first
('Err', "RuntimeError('Broken module',)")
Traceback (most recent call last):
  File "test.py", line 8, in <module>
    import pkg.hello
  File "/home/pc/tmp/testpy/pkg/__init__.py", line 1, in <module>
    from . import first
ImportError: cannot import name first

test.py

try:
    import pkg.hello
except Exception as e:
    print("Err", repr(e))
else:
    print('ok')

import pkg.hello