Remove support for end-of-life Pythons

Python 2.7 and 3.4 are end-of-life. They are no longer receiving bug
fixes, including for security issues. Python 2.7 went EOL on 2020-01-01
and 3.4 on 2019-03-18. For additional details on support Python
versions, see:

Supported: https://devguide.python.org/#status-of-python-branches
EOL: https://devguide.python.org/devcycle/#end-of-life-branches

Removing support for EOL Pythons will reduce testing and maintenance
resources while allowing the library to move towards modern Python 3.

Using pypinfo, we can show the PyPI download statistics, showing less
than 10% of users are using Python 2.7.

| python_version | percent | download_count |
| -------------- | ------: | -------------: |
| 3.7            |  45.36% |      3,056,010 |
| 3.6            |  26.46% |      1,782,778 |
| 3.8            |  12.22% |        823,213 |
| 2.7            |   9.97% |        671,459 |
| 3.5            |   5.86% |        394,846 |
| 3.4            |   0.10% |          6,700 |
| 3.9            |   0.03% |          2,346 |
| 2.6            |   0.00% |             57 |
| 3.3            |   0.00% |             21 |
| 3.10           |   0.00% |              6 |
| Total          |         |      6,737,436 |

Library users who continue to use Python 2.7 will still be able to
install previous versions of sqlparse.

Compatibility shims have been dropped, simplifying the code.

Using pyupgrade, the codebase has been updated to take advantage of
modern syntax <https://github.com/asottile/pyupgrade>.

The wheel is no longer marked as "universal" as it is now Python 3 only.

1 files changed, 8 insertions, 10 deletions

diff --git a/tests/test_split.py b/tests/test_split.py
index a93e3d4..8214756 100644
--- a/tests/test_split.py
+++ b/tests/test_split.py
@@ -1,13 +1,11 @@
-# -*- coding: utf-8 -*-
-
 # Tests splitting functions.
 
 import types
+from io import StringIO
 
 import pytest
 
 import sqlparse
-from sqlparse.compat import StringIO, text_type
 
 
 def test_split_semicolon():
@@ -33,7 +31,7 @@ def test_split_create_function(load_file, fn):
     sql = load_file(fn)
     stmts = sqlparse.parse(sql)
     assert len(stmts) == 1
-    assert text_type(stmts[0]) == sql
+    assert str(stmts[0]) == sql
 
 
 def test_split_dashcomments(load_file):
@@ -74,12 +72,12 @@ def test_split_dropif():
 
 
 def test_split_comment_with_umlaut():
-    sql = (u'select * from foo;\n'
-           u'-- Testing an umlaut: ä\n'
-           u'select * from bar;')
+    sql = ('select * from foo;\n'
+           '-- Testing an umlaut: ä\n'
+           'select * from bar;')
     stmts = sqlparse.parse(sql)
     assert len(stmts) == 2
-    assert ''.join(text_type(q) for q in stmts) == sql
+    assert ''.join(str(q) for q in stmts) == sql
 
 
 def test_split_comment_end_of_line():
@@ -125,11 +123,11 @@ def test_split_stream():
 def test_split_encoding_parsestream():
     stream = StringIO("SELECT 1; SELECT 2;")
     stmts = list(sqlparse.parsestream(stream))
-    assert isinstance(stmts[0].tokens[0].value, text_type)
+    assert isinstance(stmts[0].tokens[0].value, str)
 
 
 def test_split_unicode_parsestream():
-    stream = StringIO(u'SELECT ö')
+    stream = StringIO('SELECT ö')
     stmts = list(sqlparse.parsestream(stream))
     assert str(stmts[0]) == 'SELECT ö'