fixed deepsource.io issues

cachier/pickle_core.py

@@ -23,7 +23,7 @@ from .base_core import _BaseCore
 try:
     FileNotFoundError
 except NameError:  # we're on python 2
-    FileNotFoundError = IOError
+    FileNotFoundError = IOError  # skipcq: PYL-W0622
 
 
 DEF_CACHIER_DIR = '~/.cachier/'
@@ -80,10 +80,10 @@ class _PickleCore(_BaseCore):
                 self.value = None
                 self.observer.stop()
 
-        def on_created(self, event):
+        def on_created(self, event):  # skipcq: PYL-W0613
             self._check_calculation()  # pragma: no cover
 
-        def on_modified(self, event):
+        def on_modified(self, event):  # skipcq: PYL-W0613
             self._check_calculation()
 
     def __init__(self, stale_after, next_time, reload, cache_dir):
@@ -95,16 +95,18 @@ class _PickleCore(_BaseCore):
             self.cache_dir = cache_dir
         self.expended_cache_dir = os.path.expanduser(self.cache_dir)
         self.lock = threading.RLock()
+        self.cache_fname = None
+        self.cache_fpath = None
 
     def _cache_fname(self):
-        if not hasattr(self, 'cache_fname'):
+        if self.cache_fname is None:
             self.cache_fname = '.{}.{}'.format(
                 self.func.__module__, self.func.__name__
             )
         return self.cache_fname
 
     def _cache_fpath(self):
-        if not hasattr(self, 'cache_fpath'):
+        if self.cache_fpath is None:
             # print(EXPANDED_CACHIER_DIR)
             if not os.path.exists(self.expended_cache_dir):
                 os.makedirs(self.expended_cache_dir)

cachier/scripts/cli.py

@@ -1,4 +1,4 @@
-"A command-line interface for cachier."
+"""A command-line interface for cachier."""
 
 import click
 
@@ -8,7 +8,6 @@ from cachier.core import _set_max_workers
 @click.group()
 def cli():
     """A command-line interface for cachier."""
-    pass
 
 
 @cli.command("Limits the number of worker threads used by cachier.")

tests/test_mongo_core.py

@@ -1,10 +1,10 @@
 """Testing the MongoDB core of cachier."""
 
 from __future__ import print_function
-import datetime
 import sys
-from random import random
+import datetime
 from datetime import timedelta
+from random import random
 from time import sleep
 import threading
 try:
@@ -148,14 +148,14 @@ class _BadMongoCollection:
         self.create_indexes = self.collection.create_indexes
         self.find_one = self.collection.find_one
 
-    def delete_many(self, *args, **kwargs):  # skipcq: PYL-R0201
+    def delete_many(self, *args, **kwargs):  # skipcq: PYL-R0201, PYL-W0613
         pass
 
-    def update_many(self, *args, **kwargs):  # skipcq: PYL-R0201
+    def update_many(self, *args, **kwargs):  # skipcq: PYL-R0201, PYL-W0613
 
         pass
 
-    def update_one(self, *args, **kwargs):  # skipcq: PYL-R0201
+    def update_one(self, *args, **kwargs):  # skipcq: PYL-R0201, PYL-W0613
         raise OperationFailure(Exception())
 
 
@@ -195,10 +195,10 @@ def test_stalled_mongo_db_cache():
 
 def test_stalled_mong_db_core(monkeypatch):
 
-    def mock_get_entry(self, args, kwargs):  # skipcq: PYL-R0201
+    def mock_get_entry(self, args, kwargs):  # skipcq: PYL-R0201, PYL-W0613
         return "key", {'being_calculated': True}
 
-    def mock_get_entry_by_key(self, key):  # skipcq: PYL-R0201
+    def mock_get_entry_by_key(self, key):  # skipcq: PYL-R0201, PYL-W0613
         return "key", None
 
     monkeypatch.setattr(
@@ -213,7 +213,7 @@ def test_stalled_mong_db_core(monkeypatch):
     res = _stalled_func()
     assert res == 1
 
-    def mock_get_entry_2(self, args, kwargs):
+    def mock_get_entry_2(self, args, kwargs):  # skipcq: PYL-W0613
         entry = {
             'being_calculated': True,
             "value": 1,