make views a module for organization and add pandas dependencies

backend/metagenedb/apps/catalog/urls.py

-from django.urls import path, re_path
+from django.urls import re_path
 
 from . import views
 
 urlpatterns = [
-    path('', views.index, name='index'),
     re_path(r'^api/genes/$', views.gene_list, name='genes'),
     re_path(r'^api/genes/(?P<gene_id>.*)$', views.gene_detail),
 ]

backend/metagenedb/apps/catalog/views/__init__.py

+from .genes import gene_detail, gene_list  # noqa
\ No newline at end of file

backend/metagenedb/apps/catalog/views.py → backend/metagenedb/apps/catalog/views/genes.py

@@ -2,14 +2,9 @@ from rest_framework import status
 from rest_framework.decorators import api_view
 from rest_framework.response import Response
 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
-from django.http import HttpResponse
 
-from .models import Gene
-from .serializers import GeneSerializer
-
-
-def index(request):
-    return HttpResponse(f"Welcome to the catalog page.")
+from metagenedb.apps.catalog.models import Gene
+from metagenedb.apps.catalog.serializers import GeneSerializer
 
 
 @api_view(['GET'])

backend/requirements.txt

@@ -5,8 +5,10 @@ django-extensions==2.1.7
 django-filter==2.1.0
 djangorestframework==3.9.4
 djangorestframework-jwt==1.11.0
+numpy==1.16.4
+pandas==0.24.2
 psycopg2==2.8.2
 PyJWT==1.7.1
 pytz==2019.1
 six==1.12.0
-sqlparse==0.3.0
+sqlparse==0.3.0
\ No newline at end of file

backend/requirements_dev.txt

 atomicwrites==1.3.0
 attrs==19.1.0
 coverage==4.5.3
+cycler=0.10.0
 Django==2.2.1
 django-cors-headers==3.0.2
 django-environ==0.4.5
@@ -11,6 +12,7 @@ djangorestframework-jwt==1.11.0
 entrypoints==0.3
 flake8==3.7.7
 importlib-metadata==0.18
+kiwisolver=1.1.0
 mccabe==0.6.1
 more-itertools==7.0.0
 packaging==19.0
@@ -28,4 +30,4 @@ pytz==2019.1
 six==1.12.0
 sqlparse==0.3.0
 wcwidth==0.1.7
-zipp==0.5.1
+zipp==0.5.1
\ No newline at end of file