Replace python interpreter with plain text

conda/meta.yaml

@@ -11,7 +11,7 @@ package:
 build:
     noarch: python
     number: 0
-    script: "{{ python }} -m pip install . -vv"
+    script: "python3 -m pip install . -vv"
     entry_points:
         {% for name, script in project.get('scripts', {}).items() %}
         - {{ name }} = {{ script }}