From c66e0a9a1d6b2e8531aafb4c78f6e0c1ae4acc4e Mon Sep 17 00:00:00 2001
From: David Hotham <david.hotham@microsoft.com>
Date: Wed, 24 Aug 2022 17:41:19 +0100
Subject: [PATCH] fix python_constraint_from_marker() again

---
 src/poetry/core/packages/utils/utils.py | 4 +++-
 tests/packages/utils/test_utils.py      | 5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/poetry/core/packages/utils/utils.py b/src/poetry/core/packages/utils/utils.py
index c5d059946..b8c5f1400 100644
--- a/src/poetry/core/packages/utils/utils.py
+++ b/src/poetry/core/packages/utils/utils.py
@@ -303,7 +303,9 @@ def get_python_constraint_from_marker(
         return VersionRange()
 
     python_version_markers = markers["python_version"]
+    print(f"hello {python_version_markers=}")
     normalized = normalize_python_version_markers(python_version_markers)
+    print(f"hello {normalized=}")
     constraint = parse_constraint(normalized)
     return constraint
 
@@ -316,7 +318,7 @@ def normalize_python_version_markers(  # NOSONAR
         ands = []
         for op, version in or_:
             # Expand python version
-            if op == "==" and "*" not in version:
+            if op == "==" and "*" not in version and version.count(".") < 2:
                 version = "~" + version
                 op = ""
 
diff --git a/tests/packages/utils/test_utils.py b/tests/packages/utils/test_utils.py
index 2afc8d3a4..f64550e0d 100644
--- a/tests/packages/utils/test_utils.py
+++ b/tests/packages/utils/test_utils.py
@@ -134,6 +134,11 @@ def test_convert_markers(
             'python_version >= "3.5" and python_full_version != "3.7.6"',
             ">=3.5,<3.7.6 || >3.7.6",
         ),
+        # Full exact version
+        (
+            'python_full_version == "3.6.1"',
+            "3.6.1",
+        ),
     ],
 )
 def test_get_python_constraint_from_marker(marker: str, constraint: str) -> None: