Merge pull request #2089 from PyCQA/removal/unused-extras

Cleanup deprecated extras

README.md

@@ -82,24 +82,6 @@ Installing isort is as simple as:
 pip install isort
 ```
 
-Install isort with requirements.txt support:
-
-```bash
-pip install isort[requirements_deprecated_finder]
-```
-
-Install isort with Pipfile support:
-
-```bash
-pip install isort[pipfile_deprecated_finder]
-```
-
-Install isort with both formats support:
-
-```bash
-pip install isort[requirements_deprecated_finder,pipfile_deprecated_finder]
-```
-
 ## Using isort
 
 **From the command line**:

isort/deprecated/finders.py

@@ -28,13 +28,7 @@
     from pip_api import parse_requirements  # type: ignore
 
 except ImportError:
-    parse_requirements = None  # type: ignore
-
-try:
-    from requirementslib import Pipfile  # type: ignore
-
-except ImportError:
-    Pipfile = None
+    parse_requirements = None
 
 
 @contextmanager
@@ -346,20 +340,6 @@ def _get_names_cached(cls, path: str) -> List[str]:
         return result
 
 
-class PipfileFinder(ReqsBaseFinder):
-    enabled = bool(Pipfile)
-
-    def _get_names(self, path: str) -> Iterator[str]:
-        with chdir(path):
-            project = Pipfile.load(path)
-            for req in project.packages:
-                yield req.name
-
-    def _get_files_from_dir(self, path: str) -> Iterator[str]:
-        if "Pipfile" in os.listdir(path):
-            yield path
-
-
 class DefaultFinder(BaseFinder):
     def find(self, module_name: str) -> Optional[str]:
         return self.config.default_section
@@ -371,7 +351,6 @@ class FindersManager:
         LocalFinder,
         KnownPatternFinder,
         PathFinder,
-        PipfileFinder,
         RequirementsFinder,
         DefaultFinder,
     )