  
  logger = logging.getLogger(__name__)
  
-diff --git a/pipenv/patched/_internal/req/req_install.py b/pipenv/patched/_internal/req/req_install.py
+diff --git a/pipenv/patched/pip/_internal/req/req_install.py b/pipenv/patched/pip/_internal/req/req_install.py
 index 462c80aa..d039adc8 100644
---- a/pipenv/patched/_internal/req/req_install.py
-+++ b/pipenv/patched/_internal/req/req_install.py
+--- a/pipenv/patched/pip/_internal/req/req_install.py
++++ b/pipenv/patched/pip/_internal/req/req_install.py
 @@ -615,7 +615,7 @@ class InstallRequirement(object):
  
          with indent_log():

     sdist_args.append('-c')
     sdist_args.append(SETUPTOOLS_SHIM % setup_py)
     sdist_args.append('sdist')
diff --git a/pipenv/patched/_internal/index.py b/pipenv/patched/_internal/index.py
index 8c0ec82c..ad00ba04 100644
--- a/pipenv/patched/_internal/index.py
+++ b/pipenv/patched/_internal/index.py
@@ -58,11 +58,12 @@ logger = logging.getLogger(__name__)
 
 class InstallationCandidate(object):

         else:
             return prog
     except (AttributeError, TypeError, IndexError):
diff --git a/pipenv/patched/pip/_internal/utils/packaging.py b/pipenv/patched/pip/_internal/utils/packaging.py
index 5f9bb93d..276a9ccc 100644
--- a/pipenv/patched/pip/_internal/utils/packaging.py
+++ b/pipenv/patched/pip/_internal/utils/packaging.py
@@ -28,7 +28,7 @@ def check_requires_python(requires_python):
     requires_python_specifier = specifiers.SpecifierSet(requires_python)
 
