feat: Drop support for Python 2 and remove compatibility code

This removes support for Python 2, and drops most of the compatibility
code that was used to support both Python 2 and Python 3.

send2trash/__init__.py

@@ -8,6 +8,9 @@ import sys
 
 from send2trash.exceptions import TrashPermissionError  # noqa: F401
 
+if sys.version_info[0] < 3:
+    raise RuntimeError("send2trash is only compatible with Python 3 and above (use versions <= 1.8.3 for python 2).")
+
 if sys.platform == "darwin":
     from send2trash.mac import send2trash
 elif sys.platform == "win32":

send2trash/__main__.py

@@ -12,6 +12,9 @@ import sys
 from argparse import ArgumentParser
 from send2trash import send2trash
 
+if sys.version_info[0] < 3:
+    raise RuntimeError("send2trash is only compatible with Python 3 and above (use versions <= 1.8.3 for python 2).")
+
 
 def main(args=None):
     parser = ArgumentParser(description="Tool to send files to trash")

send2trash/compat.py

@@ -1,25 +0,0 @@
-# Copyright 2017 Virgil Dupras
-
-# 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
-import os
-
-PY3 = sys.version_info[0] >= 3
-if PY3:
-    text_type = str
-    binary_type = bytes
-    if os.supports_bytes_environ:
-        # environb will be unset under Windows, but then again we're not supposed to use it.
-        environb = os.environb
-else:
-    text_type = unicode  # noqa: F821
-    binary_type = str
-    environb = os.environ
-
-try:
-    from collections.abc import Iterable as iterable_type
-except ImportError:
-    from collections import Iterable as iterable_type  # noqa: F401

send2trash/exceptions.py

@@ -1,13 +1,7 @@
 import errno
-from send2trash.compat import PY3
-
-if PY3:
-    _permission_error = PermissionError  # noqa: F821
-else:
-    _permission_error = OSError
 
 
-class TrashPermissionError(_permission_error):
+class TrashPermissionError(PermissionError):
     """A permission error specific to a trash directory.
 
     Raising this error indicates that permissions prevent us efficiently
@@ -23,4 +17,4 @@ class TrashPermissionError(_permission_error):
     """
 
     def __init__(self, filename):
-        _permission_error.__init__(self, errno.EACCES, "Permission denied", filename)
+        PermissionError.__init__(self, errno.EACCES, "Permission denied", filename)

send2trash/mac/legacy.py

@@ -9,7 +9,6 @@ from __future__ import unicode_literals
 from ctypes import cdll, byref, Structure, c_char, c_char_p
 from ctypes.util import find_library
 
-from send2trash.compat import binary_type
 from send2trash.util import preprocess_paths
 
 Foundation = cdll.LoadLibrary(find_library("Foundation"))
@@ -42,7 +41,7 @@ def check_op_result(op_result):
 
 def send2trash(paths):
     paths = preprocess_paths(paths)
-    paths = [path.encode("utf-8") if not isinstance(path, binary_type) else path for path in paths]
+    paths = [path.encode("utf-8") if not isinstance(path, bytes) else path for path in paths]
     for path in paths:
         fp = FSRef()
         opts = kFSPathMakeRefDoNotFollowLeafSymlink

send2trash/mac/modern.py

@@ -5,7 +5,6 @@
 # http://www.hardcoded.net/licenses/bsd_license
 
 from Foundation import NSFileManager, NSURL
-from send2trash.compat import text_type
 from send2trash.util import preprocess_paths
 
 
@@ -18,7 +17,7 @@ def check_op_result(op_result):
 
 def send2trash(paths):
     paths = preprocess_paths(paths)
-    paths = [path.decode("utf-8") if not isinstance(path, text_type) else path for path in paths]
+    paths = [path.decode("utf-8") if not isinstance(path, str) else path for path in paths]
     for path in paths:
         file_url = NSURL.fileURLWithPath_(path)
         fm = NSFileManager.defaultManager()

send2trash/plat_other.py

@@ -30,7 +30,6 @@ except ImportError:
     # Python 2
     from urllib import quote
 
-from send2trash.compat import text_type, environb
 from send2trash.util import preprocess_paths
 from send2trash.exceptions import TrashPermissionError
 
@@ -53,21 +52,21 @@ INFO_DIR = b"info"
 INFO_SUFFIX = b".trashinfo"
 
 # Default of ~/.local/share [3]
-XDG_DATA_HOME = op.expanduser(environb.get(b"XDG_DATA_HOME", b"~/.local/share"))
+XDG_DATA_HOME = op.expanduser(os.environb.get(b"XDG_DATA_HOME", b"~/.local/share"))
 HOMETRASH_B = op.join(XDG_DATA_HOME, b"Trash")
 HOMETRASH = fsdecode(HOMETRASH_B)
 
 uid = os.getuid()
 TOPDIR_TRASH = b".Trash"
-TOPDIR_FALLBACK = b".Trash-" + text_type(uid).encode("ascii")
+TOPDIR_FALLBACK = b".Trash-" + str(uid).encode("ascii")
 
 
 def is_parent(parent, path):
     path = op.realpath(path)  # In case it's a symlink
-    if isinstance(path, text_type):
+    if isinstance(path, str):
         path = fsencode(path)
     parent = op.realpath(parent)
-    if isinstance(parent, text_type):
+    if isinstance(parent, str):
         parent = fsencode(parent)
     return path.startswith(parent)
 
@@ -106,7 +105,7 @@ def trash_move(src, dst, topdir=None, cross_dev=False):
     destname = filename
     while op.exists(op.join(filespath, destname)) or op.exists(op.join(infopath, destname + INFO_SUFFIX)):
         counter += 1
-        destname = base_name + b" " + text_type(counter).encode("ascii") + ext
+        destname = base_name + b" " + str(counter).encode("ascii") + ext
 
     check_create(filespath)
     check_create(infopath)
@@ -142,7 +141,7 @@ def find_ext_volume_global_trash(volume_root):
     if not op.isdir(trash_dir) or op.islink(trash_dir) or not (mode & stat.S_ISVTX):
         return None
 
-    trash_dir = op.join(trash_dir, text_type(uid).encode("ascii"))
+    trash_dir = op.join(trash_dir, str(uid).encode("ascii"))
     try:
         check_create(trash_dir)
     except OSError:
@@ -178,7 +177,7 @@ def get_dev(path):
 def send2trash(paths):
     paths = preprocess_paths(paths)
     for path in paths:
-        if isinstance(path, text_type):
+        if isinstance(path, str):
             path_b = fsencode(path)
         elif isinstance(path, bytes):
             path_b = path

send2trash/util.py

@@ -5,11 +5,11 @@
 # which should be included with this package. The terms are also available at
 # http://www.hardcoded.net/licenses/bsd_license
 
-from send2trash.compat import text_type, binary_type, iterable_type
+import collections.abc
 
 
 def preprocess_paths(paths):
-    if isinstance(paths, iterable_type) and not isinstance(paths, (text_type, binary_type)):
+    if isinstance(paths, collections.abc.Iterable) and not isinstance(paths, (str, bytes)):
         paths = list(paths)
     elif not isinstance(paths, list):
         paths = [paths]

send2trash/win/legacy.py

@@ -7,7 +7,6 @@
 from __future__ import unicode_literals
 import os.path as op
 
-from send2trash.compat import text_type
 from send2trash.util import preprocess_paths
 
 from ctypes import (
@@ -143,7 +142,7 @@ def send2trash(paths):
     if not paths:
         return
     # convert data type
-    paths = [text_type(path, "mbcs") if not isinstance(path, text_type) else path for path in paths]
+    paths = [str(path, "mbcs") if not isinstance(path, str) else path for path in paths]
     # convert to full paths
     paths = [op.abspath(path) if not op.isabs(path) else path for path in paths]
     # get short path to handle path length issues

send2trash/win/modern.py

@@ -6,7 +6,6 @@
 
 from __future__ import unicode_literals
 import os.path as op
-from send2trash.compat import text_type
 from send2trash.util import preprocess_paths
 from platform import version
 import pythoncom
@@ -20,7 +19,7 @@ def send2trash(paths):
     if not paths:
         return
     # convert data type
-    paths = [text_type(path, "mbcs") if not isinstance(path, text_type) else path for path in paths]
+    paths = [str(path, "mbcs") if not isinstance(path, str) else path for path in paths]
     # convert to full paths
     paths = [op.abspath(path) if not op.isabs(path) else path for path in paths]
     # remove the leading \\?\ if present

tests/test_plat_other.py

@@ -4,7 +4,6 @@ import codecs
 import os
 import sys
 from os import path as op
-from send2trash.compat import PY3
 from send2trash import TrashPermissionError
 
 try:
@@ -89,7 +88,7 @@ def _filesys_enc():
 
 @pytest.fixture
 def gen_unicode_file():
-    name = u"send2trash_tést1"
+    name = "send2trash_tést1"
     file = op.join(op.expanduser(b"~"), name.encode("utf-8"))
     touch(file)
     assert op.exists(file) is True
@@ -117,10 +116,7 @@ def test_trash_unicode(gen_unicode_file):
 class ExtVol:
     def __init__(self, path):
         self.trash_topdir = path
-        if PY3:
-            self.trash_topdir_b = os.fsencode(self.trash_topdir)
-        else:
-            self.trash_topdir_b = self.trash_topdir
+        self.trash_topdir_b = os.fsencode(self.trash_topdir)
 
         def s_getdev(path):
             from send2trash.plat_other import is_parent