Update callsites for RequirementTracker

src/pip/_internal/commands/download.py

@@ -10,7 +10,7 @@ from pip._internal.cli import cmdoptions
 from pip._internal.cli.cmdoptions import make_target_python
 from pip._internal.cli.req_command import RequirementCommand
 from pip._internal.req import RequirementSet
-from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.req.req_tracker import get_requirement_tracker
 from pip._internal.utils.filesystem import check_path_owner
 from pip._internal.utils.misc import ensure_dir, normalize_path, write_output
 from pip._internal.utils.temp_dir import TempDirectory
@@ -111,7 +111,7 @@ class DownloadCommand(RequirementCommand):
             )
             options.cache_dir = None
 
-        with RequirementTracker() as req_tracker, TempDirectory(
+        with get_requirement_tracker() as req_tracker, TempDirectory(
             options.build_dir, delete=build_delete, kind="download"
         ) as directory:
 

src/pip/_internal/commands/install.py

@@ -31,7 +31,7 @@ from pip._internal.exceptions import (
 from pip._internal.locations import distutils_scheme
 from pip._internal.operations.check import check_install_conflicts
 from pip._internal.req import RequirementSet, install_given_reqs
-from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.req.req_tracker import get_requirement_tracker
 from pip._internal.utils.filesystem import check_path_owner, test_writable_dir
 from pip._internal.utils.misc import (
     ensure_dir,
@@ -343,7 +343,7 @@ class InstallCommand(RequirementCommand):
             )
             options.cache_dir = None
 
-        with RequirementTracker() as req_tracker, TempDirectory(
+        with get_requirement_tracker() as req_tracker, TempDirectory(
             options.build_dir, delete=build_delete, kind="install"
         ) as directory:
             requirement_set = RequirementSet(

src/pip/_internal/commands/wheel.py

@@ -13,7 +13,7 @@ from pip._internal.cli import cmdoptions
 from pip._internal.cli.req_command import RequirementCommand
 from pip._internal.exceptions import CommandError, PreviousBuildDirError
 from pip._internal.req import RequirementSet
-from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.req.req_tracker import get_requirement_tracker
 from pip._internal.utils.temp_dir import TempDirectory
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.wheel_builder import WheelBuilder
@@ -157,7 +157,7 @@ class WheelCommand(RequirementCommand):
         build_delete = (not (options.no_clean or options.build_dir))
         wheel_cache = WheelCache(options.cache_dir, options.format_control)
 
-        with RequirementTracker() as req_tracker, TempDirectory(
+        with get_requirement_tracker() as req_tracker, TempDirectory(
             options.build_dir, delete=build_delete, kind="wheel"
         ) as directory:
 

tests/unit/test_req.py

@@ -30,7 +30,7 @@ from pip._internal.req.constructors import (
     parse_editable,
 )
 from pip._internal.req.req_file import ParsedLine, get_line_parser, handle_line
-from pip._internal.req.req_tracker import RequirementTracker
+from pip._internal.req.req_tracker import get_requirement_tracker
 from pip._internal.utils.urls import path_to_url
 from tests.lib import assert_raises_regexp, make_test_finder, requirements_file
 
@@ -69,7 +69,7 @@ class TestRequirementSet(object):
             wheel_download_dir=None,
             progress_bar="on",
             build_isolation=True,
-            req_tracker=RequirementTracker(),
+            req_tracker=get_requirement_tracker(),
             session=PipSession(),
             finder=finder,
             require_hashes=require_hashes,