Vyper: Error running tests

[mikeshultz]

======================================================================
ERROR: tests.test_parser (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: tests.test_parser
Traceback (most recent call last):
  File "/usr/lib/python3.6/unittest/loader.py", line 428, in _find_test_path
    module = self._get_module_from_name(name)
  File "/usr/lib/python3.6/unittest/loader.py", line 369, in _get_module_from_name
    __import__(name)
  File "/home/mike/dev/viper/tests/test_parser.py", line 3, in <module>
    from ethereum.tools import tester2 as t
ModuleNotFoundError: No module named 'ethereum.tools'

[karlfloersch]

I believe you need to replace your Pyethereum installation with the most recent state_revamp branch: https://github.com/ethereum/pyethereum/tree/state_revamp

[mikeshultz]

That worked, thanks.

[fubuloubu]

Currently, manually installing the state_revamp branch fails for me with the current tests in 3aae8ea:

ImportError: Failed to import test module: tests.test_parser
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/lib/python3.6/unittest/loader.py", line 428, in _find_test_path
    module = self._get_module_from_name(name)
  File "/usr/local/lib/python3.6/lib/python3.6/unittest/loader.py", line 369, in _get_module_from_name
    __import__(name)
  File "/home/bryant/Documents/viper/tests/test_parser.py", line 3, in <module>
    from ethereum.tools import tester2 as t
ImportError: cannot import name 'tester2'

Although, it used to fail on the tools submodule so.... improvement?

```ImportError: Failed to import test module: tests.test_parser
Traceback (most recent call last):
File "/usr/local/lib/python3.6/lib/python3.6/unittest/loader.py", line 428, in _find_test_path
module = self._get_module_from_name(name)
File "/usr/local/lib/python3.6/lib/python3.6/unittest/loader.py", line 369, in _get_module_from_name
__import__(name)
File "/home/bryant/Documents/viper/tests/test_parser.py", line 3, in
from ethereum.tools import tester2 as t
ModuleNotFoundError: No module named 'ethereum.tools'

[orig74]

I changed the line:

  from ethereum.tools import tester2 as t

to:

  from ethereum.tools import tester as t

and it worked for me.
Also make sure you are cloning the right branch of pyethereum e.g.:

  git clone -b state_revamp https://github.com/ethereum/pyethereum.git

It is still failing some other tests though.

[fubuloubu]

@mikeshultz this should now all be settled and work.

Close this issue?