Correctly parse 2-digit minor versions (py3.10)

AUTHORS.txt

@@ -50,6 +50,7 @@ Daniel Fiterman (@dfit99) <fitermandaniel2@gmail.com>
 Simon Ruggier (@sruggier)
 Élie Gouzien (@ElieGouzien)
 Tim Gates (@timgates42) <tim.gates@iress.com>
+Batuhan Taskaya (@isidentical) <isidentical@gmail.com>
 
 
 Note: (@user) means a github user name.

parso/utils.py

@@ -129,7 +129,7 @@ def version_info():
 
 
 def _parse_version(version):
-    match = re.match(r'(\d+)(?:\.(\d)(?:\.\d+)?)?$', version)
+    match = re.match(r'(\d+)(?:\.(\d{1,2})(?:\.\d+)?)?$', version)
     if match is None:
         raise ValueError('The given version is not in the right format. '
                          'Use something like "3.8" or "3".')

test/test_utils.py

@@ -1,6 +1,11 @@
 from codecs import BOM_UTF8
 
-from parso.utils import split_lines, python_bytes_to_unicode
+from parso.utils import (
+    split_lines,
+    parse_version_string,
+    python_bytes_to_unicode,
+)
+
 import parso
 
 import pytest
@@ -77,3 +82,18 @@ def test_bytes_to_unicode_failing_encoding(code, errors):
             python_bytes_to_unicode(code, errors=errors)
     else:
         python_bytes_to_unicode(code, errors=errors)
+
+@pytest.mark.parametrize(
+    ('version_str', 'version'), [
+        ('3', (3,)),
+        ('3.6', (3, 6)),
+        ('3.6.10', (3, 6)),
+        ('3.10', (3, 10)),
+    ]
+)
+def test_parse_version_string(version_str, version):
+    parsed_version = parse_version_string(version_str)
+    if len(version) == 1:
+        assert parsed_version[0] == version[0]
+    else:
+        assert parsed_version == version