show: add editable location if package is editable (pypa#11638)

Author: doronz88

news/11638.bugfix.rst

@@ -0,0 +1 @@
+Make ``pip show`` show the editable location if package is editable

src/pip/_internal/commands/show.py

@@ -53,6 +53,7 @@ class _PackageInfo(NamedTuple):
     name: str
     version: str
     location: str
+    editable_project_location: Optional[str]
     requires: List[str]
     required_by: List[str]
     installer: str
@@ -120,6 +121,7 @@ def _get_requiring_packages(current_dist: BaseDistribution) -> Iterator[str]:
             name=dist.raw_name,
             version=str(dist.version),
             location=dist.location or "",
+            editable_project_location=dist.editable_project_location,
             requires=requires,
             required_by=required_by,
             installer=dist.installer,
@@ -158,6 +160,8 @@ def print_results(
         write_output("Author-email: %s", dist.author_email)
         write_output("License: %s", dist.license)
         write_output("Location: %s", dist.location)
+        if dist.editable_project_location is not None:
+            write_output("Editable project location: %s", dist.editable_project_location)
         write_output("Requires: %s", ", ".join(dist.requires))
         write_output("Required-by: %s", ", ".join(dist.required_by))
 

tests/functional/test_show.py

@@ -24,6 +24,22 @@ def test_basic_show(script: PipTestEnvironment) -> None:
     assert "Requires: " in lines
 
 
+def test_show_with_editable_project_location(script: PipTestEnvironment) -> None:
+    """
+    Test for show command with an editable project installation
+    """
+    script.pip(
+        "install",
+        "-e",
+        "git+https://github.com/pypa/pip-test-package.git#egg=pip-test-package",
+    )
+    result = script.pip(
+        "show",
+        "pip_test_package",
+    )
+    assert "Editable project location:" in result.stdout
+
+
 def test_show_with_files_not_found(script: PipTestEnvironment, data: TestData) -> None:
     """
     Test for show command with installed files listing enabled and