Merge pull request #8266 from gutsytechster/add_logs_for_install

feat(): Add logs for pip environment when installing

news/3166.feature

@@ -0,0 +1 @@
+Log debugging information about pip, in ``pip install --verbose``.

src/pip/_internal/commands/install.py

@@ -26,6 +26,7 @@ from pip._internal.utils.filesystem import test_writable_dir
 from pip._internal.utils.misc import (
     ensure_dir,
     get_installed_version,
+    get_pip_version,
     protect_pip_from_modification_on_windows,
     write_output,
 )
@@ -238,6 +239,7 @@ class InstallCommand(RequirementCommand):
 
         install_options = options.install_options or []
 
+        logger.debug("Using {}".format(get_pip_version()))
         options.use_user_site = decide_user_install(
             options.use_user_site,
             prefix_path=options.prefix_path,

tests/functional/test_install.py

@@ -1902,3 +1902,10 @@ def test_install_verify_package_name_normalization(script, package_name):
     result = script.pip('install', package_name)
     assert 'Requirement already satisfied: {}'.format(
         package_name) in result.stdout
+
+
+def test_install_logs_pip_version_in_debug(script, shared_data):
+    fake_package = shared_data.packages / 'simple-2.0.tar.gz'
+    result = script.pip('install', '-v', fake_package)
+    pattern = "Using pip .* from .*"
+    assert_re_match(pattern, result.stdout)