Remove imported 'tests' reference from packaged constants.

nucypher/config/constants.py

@@ -16,15 +16,13 @@ along with nucypher.  If not, see <https://www.gnu.org/licenses/>.
 """
 
 
-import os
 from collections import namedtuple
-from os.path import dirname
 from pathlib import Path
 
+import os
 from appdirs import AppDirs
 
 import nucypher
-from nucypher.exceptions import DevelopmentInstallationRequired
 
 # Environment variables
 NUCYPHER_ENVVAR_KEYRING_PASSWORD = "NUCYPHER_KEYRING_PASSWORD"
@@ -34,23 +32,11 @@ NUCYPHER_ENVVAR_ALICE_ETH_PASSWORD = "NUCYPHER_ALICE_ETH_PASSWORD"
 NUCYPHER_ENVVAR_PROVIDER_URI = "NUCYPHER_PROVIDER_URI"
 NUCYPHER_ENVVAR_WORKER_IP_ADDRESS = 'NUCYPHER_WORKER_IP_ADDRESS'
 
-
 # Base Filepaths
 NUCYPHER_PACKAGE = Path(nucypher.__file__).parent.resolve()
 BASE_DIR = NUCYPHER_PACKAGE.parent.resolve()
 DEPLOY_DIR = BASE_DIR / 'deploy'
-
-# Test Filepaths
-try:
-    import tests
-except ImportError:
-    raise DevelopmentInstallationRequired(importable_name='tests')
-else:
-    # TODO: Another way to handle this situation?
-    # __file__ can be None, especially with namespace packages on
-    # Python 3.7 or when using apidoc and sphinx-build.
-    file_path = tests.__file__
-    NUCYPHER_TEST_DIR = dirname(file_path) if file_path is not None else str()
+NUCYPHER_TEST_DIR = BASE_DIR / 'tests'
 
 # User Application Filepaths
 APP_DIR = AppDirs(nucypher.__title__, nucypher.__author__)

tests/constants.py

@@ -16,12 +16,11 @@ along with nucypher.  If not, see <https://www.gnu.org/licenses/>.
 """
 
 import string
-import tempfile
-import time
 from datetime import datetime
 from pathlib import Path
-from random import SystemRandom
 
+import tempfile
+from random import SystemRandom
 from web3 import Web3
 
 from nucypher.blockchain.eth.token import NU