[conda] use pip to install the package [skip ci]

conda/meta.yaml

@@ -16,14 +16,15 @@ build:
   script:
     - cd {{ project_dir }}
     {% if environ.get('BUILD_EGG') %}
-    - python setup.py sdist --formats=zip
+    - "{{ PYTHON }} setup.py sdist --formats=zip"
     {% endif %}
-    - python setup.py install --single-version-externally-managed --record record.txt
+    - "{{ PYTHON }} -m pip install . -vv"
 
 requirements:
   host:
     - python {{ python }}
     - setuptools {{ setuptools }}
+    - pip {{ pip }}
     - numpy {{ numpy }}
     - scipy {{ scipy }}
     - pillow {{ pillow }}