From cfc3608bed845cab23f0cce0a61649f70311e4f7 Mon Sep 17 00:00:00 2001
From: Atharva Singh <satharva025@gmail.com>
Date: Sun, 12 Apr 2026 02:26:54 +0530
Subject: [PATCH] fix: parse python relative import shorthand

---
 internal/graph/graph_test.go   | 19 +++++++++++++++++++
 internal/parser/python_test.go | 25 ++++++++++++++++++++++++-
 internal/parser/ts_python.go   | 34 +++++++++++++++++++++++++++++++++-
 3 files changed, 76 insertions(+), 2 deletions(-)

diff --git a/internal/graph/graph_test.go b/internal/graph/graph_test.go
index 8d6950c..eac88f5 100644
--- a/internal/graph/graph_test.go
+++ b/internal/graph/graph_test.go
@@ -222,6 +222,25 @@ func TestGoImportWithDotsNotMangled(t *testing.T) {
 	}
 }
 
+// TestPythonRelativeImportShorthand verifies that "from . import module" style
+// imports resolve to dependency edges.
+func TestPythonRelativeImportShorthand(t *testing.T) {
+	files := []*parser.FileInfo{
+		{Path: "pkg/api/views.py", Language: "python", Imports: []string{".models", "..shared"}, LineCount: 20},
+		{Path: "pkg/api/models/user.py", Language: "python", LineCount: 10},
+		{Path: "pkg/shared/util.py", Language: "python", LineCount: 10},
+	}
+
+	g := Build(files, BuildOptions{MaxDepth: 4})
+
+	apiMod := g.Module("pkg/api")
+	if apiMod == nil {
+		t.Fatal("expected module pkg/api to exist")
+	}
+	assertStringSliceContains(t, apiMod.DependsOn, "pkg/api/models")
+	assertStringSliceContains(t, apiMod.DependsOn, "pkg/shared")
+}
+
 // moduleNames is a helper to extract names for error messages.
 func moduleNames(mods []*Module) []string {
 	names := make([]string, len(mods))
diff --git a/internal/parser/python_test.go b/internal/parser/python_test.go
index 5b92b0e..60b9b81 100644
--- a/internal/parser/python_test.go
+++ b/internal/parser/python_test.go
@@ -6,7 +6,6 @@ import (
 	"testing"
 )
 
-
 func TestPythonParserParse_Imports(t *testing.T) {
 	p := &TreeSitterParser{}
 
@@ -126,3 +125,27 @@ func TestPythonParserParse_LineCount(t *testing.T) {
 		t.Errorf("LineCount = %d, want 4", info.LineCount)
 	}
 }
+
+func TestPythonParserParse_RelativeImportShorthand(t *testing.T) {
+	p := &TreeSitterParser{}
+
+	content := []byte("from . import models\nfrom .. import utils\n")
+	info, err := p.Parse("pkg/api/views.py", content)
+	if err != nil {
+		t.Fatalf("Parse: %v", err)
+	}
+
+	wantImports := []string{".models", "..utils"}
+	for _, want := range wantImports {
+		found := false
+		for _, got := range info.Imports {
+			if got == want {
+				found = true
+				break
+			}
+		}
+		if !found {
+			t.Errorf("import %q not found in %v", want, info.Imports)
+		}
+	}
+}
diff --git a/internal/parser/ts_python.go b/internal/parser/ts_python.go
index 61ac172..298cb2e 100644
--- a/internal/parser/ts_python.go
+++ b/internal/parser/ts_python.go
@@ -31,7 +31,11 @@ func extractPython(root *gts.Node, lang *gts.Language, src []byte, path string)
 			if mod != nil {
 				name := nodeText(mod, src)
 				if name != "" {
-					info.Imports = dedup(append(info.Imports, name))
+					if strings.Trim(name, ".") == "" {
+						info.Imports = dedup(append(info.Imports, extractPyRelativeFromImports(node, lang, src, name)...))
+					} else {
+						info.Imports = dedup(append(info.Imports, name))
+					}
 				}
 			}
 			return gts.WalkSkipChildren
@@ -92,6 +96,34 @@ func extractPython(root *gts.Node, lang *gts.Language, src []byte, path string)
 	return info
 }
 
+// extractPyRelativeFromImports expands shorthand relative imports such as
+// "from . import models" into module paths like ".models".
+func extractPyRelativeFromImports(node *gts.Node, lang *gts.Language, src []byte, prefix string) []string {
+	var imports []string
+	for i := 0; i < node.ChildCount(); i++ {
+		child := node.Child(i)
+		if child == nil {
+			continue
+		}
+		switch child.Type(lang) {
+		case "identifier", "dotted_name":
+			name := nodeText(child, src)
+			if name != "" {
+				imports = append(imports, prefix+name)
+			}
+		case "aliased_import":
+			nameNode := child.ChildByFieldName("name", lang)
+			if nameNode != nil {
+				name := nodeText(nameNode, src)
+				if name != "" {
+					imports = append(imports, prefix+name)
+				}
+			}
+		}
+	}
+	return imports
+}
+
 // extractPyImportNames handles import_statement nodes and appends module names
 // to info.Imports. Handles: import os, import os.path, import os as o.
 func extractPyImportNames(node *gts.Node, lang *gts.Language, src []byte, info *FileInfo) {