Fix root package installation for pure Python packages

CHANGELOG.md

 # Change Log
 
+## [Unreleased]
+
+### Fixed
+
+- Fixed root package installation for pure Python packages.
+
+
 ## [0.12.13] - 2019-04-26
 
 ### Fixed

poetry/masonry/builders/editable.py

@@ -14,15 +14,8 @@ from .sdist import SdistBuilder
 
 class EditableBuilder(Builder):
     def build(self):
-        if self._package.build:
-            # If the project has some kind of special
-            # build needs we delegate to the setup.py file
         return self._setup_build()
 
-        self._build_egg_info()
-        self._build_egg_link()
-        self._add_easy_install_entry()
-
     def _setup_build(self):
         builder = SdistBuilder(self._poetry, self._env, self._io)
         setup = self._path / "setup.py"

tests/masonry/builders/test_editable.py

@@ -10,83 +10,6 @@ from poetry.utils.env import MockEnv
 fixtures_dir = Path(__file__).parent / "fixtures"
 
 
-def test_build_pure_python_package(tmp_dir):
-    tmp_dir = Path(tmp_dir)
-    env = MockEnv(path=tmp_dir)
-    env.site_packages.mkdir(parents=True)
-    module_path = fixtures_dir / "complete"
-
-    builder = EditableBuilder(Poetry.create(module_path), env, NullIO())
-    builder._path = tmp_dir
-    builder.build()
-
-    egg_info = tmp_dir / "my_package.egg-info"
-
-    assert egg_info.exists()
-
-    entry_points = """\
-[console_scripts]
-extra-script=my_package.extra:main[time]
-my-2nd-script=my_package:main2
-my-script=my_package:main
-
-"""
-    pkg_info = """\
-Metadata-Version: 2.1
-Name: my-package
-Version: 1.2.3
-Summary: Some description.
-Home-page: https://poetry.eustace.io/
-License: MIT
-Keywords: packaging,dependency,poetry
-Author: Sébastien Eustace
-Author-email: sebastien@eustace.io
-Requires-Python: >=3.6,<4.0
-Classifier: License :: OSI Approved :: MIT License
-Classifier: Programming Language :: Python :: 3
-Classifier: Programming Language :: Python :: 3.6
-Classifier: Programming Language :: Python :: 3.7
-Classifier: Topic :: Software Development :: Build Tools
-Classifier: Topic :: Software Development :: Libraries :: Python Modules
-Provides-Extra: time
-Requires-Dist: cachy[msgpack] (>=0.2.0,<0.3.0)
-Requires-Dist: cleo (>=0.6,<0.7)
-Requires-Dist: pendulum (>=1.4,<2.0); extra == "time"
-Project-URL: Documentation, https://poetry.eustace.io/docs
-Project-URL: Repository, https://github.com/sdispater/poetry
-Description-Content-Type: text/x-rst
-
-My Package
-==========
-
-"""
-
-    requires = """\
-cachy[msgpack] (>=0.2.0,<0.3.0)
-cleo (>=0.6,<0.7)
-pendulum (>=1.4,<2.0)
-"""
-
-    with egg_info.joinpath("entry_points.txt").open(encoding="utf-8") as f:
-        assert entry_points == f.read()
-
-    with egg_info.joinpath("PKG-INFO").open(encoding="utf-8") as f:
-        assert pkg_info == f.read()
-
-    with egg_info.joinpath("requires.txt").open(encoding="utf-8") as f:
-        assert requires == f.read()
-
-    egg_link = env.site_packages / "my-package.egg-link"
-
-    with egg_link.open(encoding="utf-8") as f:
-        assert str(module_path) + "\n." == f.read()
-
-    easy_install = env.site_packages / "easy-install.pth"
-
-    with easy_install.open(encoding="utf-8") as f:
-        assert str(module_path) + "\n" in f.readlines()
-
-
 def test_build_should_delegate_to_pip_for_non_pure_python_packages(tmp_dir, mocker):
     move = mocker.patch("shutil.move")
     tmp_dir = Path(tmp_dir)