Add shell.nix and test program

app/dummy_request.py

@@ -0,0 +1,16 @@
+from requests import get
+
+
+def dummy_request(url):
+    request = get(url)
+    print(request.text)
+
+
+def main():
+    dummy_request(
+        "https://opendata.paris.fr/api/records/1.0/search/?dataset=velib-disponibilite-en-temps-reel&q=&facet=name&facet=is_installed&facet=is_renting&facet=is_returning&facet=nom_arrondissement_communes"
+    )
+
+
+if __name__ == "__main__":
+    main()