Merge pull request #3156 from pypa/bugfix/2983

Fixed a bug with encountering removed pythons

news/2983.bugfix.rst

@@ -0,0 +1 @@
+Pipenv will no longer fail when encountering  python versions on Windows that were unintalled.

pipenv/vendor/pythonfinder/__init__.py

@@ -1,6 +1,6 @@
 from __future__ import print_function, absolute_import
 
-__version__ = '1.1.6'
+__version__ = '1.1.7.dev0'
 
 # Add NullHandler to "pythonfinder" logger, because Python2's default root
 # logger has no handler and warnings like this would be reported:

pipenv/vendor/pythonfinder/cli.py

@@ -56,7 +56,20 @@ def cli(ctx, find=False, which=False, findall=False, version=False, ignore_unsup
         click.secho("Searching for python: {0!s}".format(find.strip()), fg="yellow")
         found = finder.find_python_version(find.strip())
         if found:
+            py = found.py_version
+            comes_from = getattr(py, "comes_from", None)
+            if comes_from is not None:
+                comes_from_path = getattr(comes_from, "path", found.path)
+            else:
+                comes_from_path = found.path
+            arch = getattr(py, "architecture", None)
             click.secho("Found python at the following locations:", fg="green")
+            click.secho(
+                "{py.name!s}: {py.version!s} ({py.architecture!s}) @ {comes_from!s}".format(
+                    py=py, comes_from=comes_from_path
+                ),
+                fg="yellow",
+            )
             sys.exit(0)
         else:
             click.secho("Failed to find matching executable...", fg="yellow")

pipenv/vendor/pythonfinder/models/windows.py

@@ -84,7 +84,10 @@ class WindowsFinder(BaseFinder):
             install_path = getattr(version_object.info, "install_path", None)
             if install_path is None:
                 continue
-            path = ensure_path(install_path.__getattr__(""))
+            try:
+                path = ensure_path(install_path.__getattr__(""))
+            except AttributeError:
+                continue
             try:
                 py_version = PythonVersion.from_windows_launcher(version_object)
             except InvalidPythonVersion: