Fix some flake8 errors and cleanup

- Fix some flake8 formatting errors
- Auto-format files edited
- Also ignore some flake8 errors when they are intented
- Update .gitignore to ingore local env

.gitignore

@@ -5,3 +5,4 @@
 .DS_Store
 /.tox
 __pycache__
+/env

send2trash/__init__.py

@@ -1,16 +1,16 @@
 # Copyright 2013 Hardcoded Software (http://www.hardcoded.net)
 
-# This software is licensed under the "BSD" License as described in the "LICENSE" file, 
-# which should be included with this package. The terms are also available at 
+# This software is licensed under the "BSD" License as described in the "LICENSE" file,
+# which should be included with this package. The terms are also available at
 # http://www.hardcoded.net/licenses/bsd_license
 
 import sys
 
-from .exceptions import TrashPermissionError
+from .exceptions import TrashPermissionError  # noqa: F401
 
-if sys.platform == 'darwin':
+if sys.platform == "darwin":
     from .plat_osx import send2trash
-elif sys.platform == 'win32':
+elif sys.platform == "win32":
     from .plat_win import send2trash
 else:
     try:
@@ -18,4 +18,4 @@ else:
         from .plat_gio import send2trash
     except ImportError:
         # Oh well, let's fallback to our own Freedesktop trash implementation
-        from .plat_other import send2trash
+        from .plat_other import send2trash  # noqa: F401

send2trash/compat.py

@@ -15,6 +15,6 @@ if PY3:
         # environb will be unset under Windows, but then again we're not supposed to use it.
         environb = os.environb
 else:
-    text_type = unicode
+    text_type = unicode  # noqa: F821
     binary_type = str
     environb = os.environ

send2trash/exceptions.py

@@ -6,6 +6,7 @@ if PY3:
 else:
     _permission_error = OSError
 
+
 class TrashPermissionError(_permission_error):
     """A permission error specific to a trash directory.
 
@@ -20,6 +21,6 @@ class TrashPermissionError(_permission_error):
     data between partitions, devices, or network drives, so we don't do it as
     a fallback.
     """
+
     def __init__(self, filename):
-        _permission_error.__init__(self, errno.EACCES, "Permission denied",
-                                   filename)
+        _permission_error.__init__(self, errno.EACCES, "Permission denied", filename)

send2trash/plat_win.py

@@ -17,4 +17,4 @@ if int(version().split(".", 1)[0]) >= 6:
         from .plat_win_legacy import send2trash
 else:
     # use SHFileOperation as fallback
-    from .plat_win_legacy import send2trash
+    from .plat_win_legacy import send2trash  # noqa: F401