Remove sys.version_info usages that are no longer necessary

parso/utils.py

@@ -171,7 +171,7 @@ class PythonVersionInfo(namedtuple('Version', 'major, minor')):
 
 def parse_version_string(version=None):
     """
-    Checks for a valid version number (e.g. `3.8` or `2.7.1` or `3`) and
+    Checks for a valid version number (e.g. `3.8` or `3.10.1` or `3`) and
     returns a corresponding version info that is always two characters long in
     decimal.
     """

test/test_diff_parser.py

@@ -934,7 +934,6 @@ def test_many_nested_ifs(differ):
     differ.parse(code1, parsers=1, copies=1)
 
 
-@pytest.mark.skipif(sys.version_info < (3, 5), reason="Async starts working in 3.5")
 @pytest.mark.parametrize('prefix', ['', 'async '])
 def test_with_and_funcdef_in_call(differ, prefix):
     code1 = prefix + dedent('''\
@@ -977,8 +976,7 @@ def test_random_unicode_characters(differ):
                  expect_error_leaves=True)
     differ.parse('\r\r', parsers=1)
     differ.parse("˟Ę\x05À\r   rúƣ@\x8a\x15r()\n", parsers=1, expect_error_leaves=True)
-    differ.parse('a\ntaǁ\rGĒōns__\n\nb', parsers=1,
-                 expect_error_leaves=sys.version_info[0] == 2)
+    differ.parse('a\ntaǁ\rGĒōns__\n\nb', parsers=1)
     s = '        if not (self, "_fi\x02\x0e\x08\n\nle"):'
     differ.parse(s, parsers=1, expect_error_leaves=True)
     differ.parse('')

test/test_python_errors.py

@@ -48,10 +48,7 @@ def test_non_async_in_async():
     This example doesn't work with FAILING_EXAMPLES, because the line numbers
     are not always the same / incorrect in Python 3.8.
     """
-    if sys.version_info[:2] < (3, 5):
-        pytest.skip()
-
-        # Raises multiple errors in previous versions.
+    # Raises multiple errors in previous versions.
     code = 'async def foo():\n def nofoo():[x async for x in []]'
     wanted, line_nr = _get_actual_exception(code)
 
@@ -259,10 +256,7 @@ def test_escape_decode_literals(each_version):
 
     # Finally bytes.
     error, = _get_error_list(r'b"\x"', version=each_version)
-    wanted = r'SyntaxError: (value error) invalid \x escape'
-    if sys.version_info >= (3, 0):
-        # The positioning information is only available in Python 3.
-        wanted += ' at position 0'
+    wanted = r'SyntaxError: (value error) invalid \x escape at position 0'
     assert error.message == wanted
 
 

test/test_tokenize.py

@@ -1,6 +1,5 @@
 # -*- coding: utf-8    # This file contains Unicode characters.
 
-import sys
 from textwrap import dedent
 
 import pytest
@@ -179,19 +178,17 @@ def test_ur_literals():
             assert typ == NAME
 
     check('u""')
-    check('ur""', is_literal=not sys.version_info.major >= 3)
-    check('Ur""', is_literal=not sys.version_info.major >= 3)
-    check('UR""', is_literal=not sys.version_info.major >= 3)
+    check('ur""', is_literal=False)
+    check('Ur""', is_literal=False)
+    check('UR""', is_literal=False)
     check('bR""')
-    # Starting with Python 3.3 this ordering is also possible.
-    if sys.version_info.major >= 3:
-        check('Rb""')
+    check('Rb""')
 
     # Starting with Python 3.6 format strings where introduced.
-    check('fr""', is_literal=sys.version_info >= (3, 6))
-    check('rF""', is_literal=sys.version_info >= (3, 6))
-    check('f""', is_literal=sys.version_info >= (3, 6))
-    check('F""', is_literal=sys.version_info >= (3, 6))
+    check('fr""')
+    check('rF""')
+    check('f""')
+    check('F""')
 
 
 def test_error_literal():