Drop codecs library

Built-in `open()` of python 3 handles file encodings well.

Author: deathaxe

plugins/cmds.py

@@ -1,4 +1,3 @@
-import codecs
 import functools
 import locale
 import os
@@ -226,9 +225,7 @@ def get_alternate_tags_paths(view, tags_file):
 
     # read and add additional tag file paths from file
     if os.path.exists(tags_paths):
-        search_paths.extend(
-            codecs.open(tags_paths, encoding="utf-8").read().split("\n")
-        )
+        search_paths.extend(open(tags_paths, encoding="utf-8").read().split("\n"))
 
     # read and add additional tag file paths from 'extra_tag_paths' setting
     try:
@@ -988,7 +985,7 @@ def __next__(self):
     def co_routine(self, view):
         tag_file = find_tags_relative_to(view.file_name(), setting("tag_file"))
 
-        with codecs.open(tag_file, encoding="utf-8") as tf:
+        with open(tag_file, encoding="utf-8") as tf:
             tags = parse_tag_lines(tf, tag_class=TagElements)
 
         print("Starting Test")

plugins/ctags.py

@@ -3,7 +3,6 @@
 """
 
 import bisect
-import codecs
 import mmap
 import os
 import re
@@ -363,7 +362,7 @@ def resort_ctags(tag_file):
     """
     groups = {}
 
-    with codecs.open(tag_file, encoding="utf-8", errors="replace") as file_:
+    with open(tag_file, encoding="utf-8", errors="replace") as file_:
         for line in file_:
             # meta data not needed in sorted files
             if line.startswith("!_TAG"):
@@ -375,7 +374,7 @@ def resort_ctags(tag_file):
             if len(split) > FILENAME:
                 groups.setdefault(split[FILENAME], []).append(line)
 
-    with codecs.open(
+    with open(
         tag_file + "_sorted_by_file", "w", encoding="utf-8", errors="replace"
     ) as file_:
         for group in sorted(groups):
@@ -509,7 +508,7 @@ def open(self):
         """
         Open file.
         """
-        self.file_o = codecs.open(self.path, "r+b", encoding="utf-8")
+        self.file_o = open(self.path, "r", encoding="utf-8")
         self.mapped = mmap.mmap(self.file_o.fileno(), 0, access=mmap.ACCESS_READ)
 
     def close(self):

plugins/tests/test_ctags.py

@@ -4,7 +4,6 @@
 Unit tests for 'ctags.py'.
 """
 
-import codecs
 import os
 import tempfile
 import unittest
@@ -217,7 +216,7 @@ def test_build_ctags__single_file(self):
 
         tag_file = ctags.build_ctags(path=path)
 
-        with codecs.open(tag_file, encoding="utf-8") as output:
+        with open(tag_file, encoding="utf-8") as output:
             try:
                 content = output.readlines()
                 filename = os.path.basename(path)
@@ -239,7 +238,7 @@ def test_build_ctags__custom_tag_file(self):
 
         tag_file = ctags.build_ctags(path=path, tag_file="my_tag_file")
 
-        with codecs.open(tag_file, encoding="utf-8") as output:
+        with open(tag_file, encoding="utf-8") as output:
             try:
                 content = output.readlines()
                 filename = os.path.basename(path)
@@ -263,7 +262,7 @@ def test_build_ctags__additional_options(self):
             path=path, tag_file="my_tag_file", opts="--language-force=java"
         )
 
-        with codecs.open(tag_file, encoding="utf-8") as output:
+        with open(tag_file, encoding="utf-8") as output:
             try:
                 content = output.readlines()
                 # there should be nothing in the file but headers (due to the
@@ -375,7 +374,7 @@ def test_parse_tag_lines__python(self):
 
         tag_file = ctags.build_ctags(path=path, opts=["--python-kinds=-i"])
 
-        with codecs.open(tag_file, encoding="utf-8") as output:
+        with open(tag_file, encoding="utf-8") as output:
             try:
                 content = output.readlines()
                 filename = os.path.basename(path)
@@ -471,7 +470,7 @@ def test_parse_tag_lines__c(self):
 
         tag_file = ctags.build_ctags(path=path)
 
-        with codecs.open(tag_file, encoding="utf-8") as output:
+        with open(tag_file, encoding="utf-8") as output:
             try:
                 content = output.readlines()
                 filename = os.path.basename(path)