Use pip-api instead of importing pip

2 files changed, 5 insertions, 11 deletions

diff --git a/isort/finders.py b/isort/finders.py
index 75fe79a3..c7e24b62 100644
--- a/isort/finders.py
+++ b/isort/finders.py
@@ -20,15 +20,9 @@ except ImportError:
     pipreqs = None
 
 try:
-    # pip>=10
-    from pip._internal.download import PipSession
-    from pip._internal.req import parse_requirements
+    from pip_api import parse_requirements
 except ImportError:
-    try:
-        from pip.download import PipSession
-        from pip.req import parse_requirements
-    except ImportError:
-        parse_requirements = None
+    parse_requirements = None
 
 try:
     from requirementslib import Pipfile
@@ -325,8 +319,8 @@ class RequirementsFinder(ReqsBaseFinder):
         result = []
 
         with chdir(os.path.dirname(path)):
-            requirements = parse_requirements(path, session=PipSession())
-            for req in requirements:
+            requirements = parse_requirements(path)
+            for req in requirements.values():
                 if req.name:
                     result.append(req.name)
 
diff --git a/setup.py b/setup.py
index e48e97a9..810a5aaf 100755
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ setup(name='isort',
       extras_require={
           'pipfile': ['pipreqs', 'requirementslib'],
           'pyproject': ['toml'],
-          'requirements': ['pip', 'pipreqs'],
+          'requirements': ['pip', 'pipreqs', 'pip-api'],
           'xdg_home': ['appdirs>=1.4.0'],
       },
       python_requires=">=3.4",