remove conditional imports of the set module

These were needed for Python 2.3, which is no longer supported.

4 files changed, 0 insertions, 23 deletions

diff --git a/doc/mklatex.py b/doc/mklatex.py
index e8b77012..f650b16a 100644
--- a/doc/mklatex.py
+++ b/doc/mklatex.py
@@ -5,12 +5,6 @@
 from docstructure import SITE_STRUCTURE, BASENAME_MAP
 import os, shutil, re, sys, datetime
 
-try:
-    set
-except NameError:
-    # Python 2.3
-    from sets import Set as set
-
 TARGET_FILE = "lxmldoc.tex"
 
 RST2LATEX_OPTIONS = " ".join([
diff --git a/src/lxml/ElementInclude.py b/src/lxml/ElementInclude.py
index f7806709..ab2ee879 100644
--- a/src/lxml/ElementInclude.py
+++ b/src/lxml/ElementInclude.py
@@ -60,12 +60,6 @@ except ImportError:
     from urllib.parse import urljoin
     from urllib.request import urlopen
 
-try:
-    set
-except NameError:
-    # Python 2.3
-    from sets import Set as set
-
 XINCLUDE = "{http://www.w3.org/2001/XInclude}"
 
 XINCLUDE_INCLUDE = XINCLUDE + "include"
diff --git a/src/lxml/html/defs.py b/src/lxml/html/defs.py
index e6ca5882..caf6b21b 100644
--- a/src/lxml/html/defs.py
+++ b/src/lxml/html/defs.py
@@ -6,12 +6,6 @@
 # and http://www.w3.org/community/webed/wiki/HTML/New_HTML5_Elements
 # for html5_tags.
 
-try:
-    frozenset
-except NameError:
-    from sets import Set as frozenset
-
-
 empty_tags = frozenset([
     'area', 'base', 'basefont', 'br', 'col', 'frame', 'hr',
     'img', 'input', 'isindex', 'link', 'meta', 'param'])
diff --git a/test.py b/test.py
index b3f0eb5d..2dbe94ef 100644
--- a/test.py
+++ b/test.py
@@ -73,11 +73,6 @@ import unittest
 import traceback
 
 try:
-    set
-except NameError:
-    from sets import Set as set
-
-try:
     # Python >=2.7 and >=3.2
     from unittest.runner import _TextTestResult
 except ImportError: