Switched yaml-loader from oyaml to pythonordereddictloader

New loader is installable via apt instead of pip

Dockerfile

 FROM docker.imp.fu-berlin.de:5000/pub/python-flask
 
 RUN apt-get update \
-&& apt-get install -y python3-pip \
-&& pip3 install oyaml
+&& apt-get install -y python3-yamlordereddictloader
+
 
 EXPOSE 5000
 

flask-server.py

 #!/usr/bin/python3
 from flask import Flask, render_template, request, abort
 
-import oyaml as yaml
+import yaml
+import yamlordereddictloader as yamlODL
 import json
 from collections import OrderedDict
 
@@ -21,7 +22,7 @@ def loadyaml(filename):
     file = open(filepath + filename, "r")
     yamldata = file.read()
     global DATA
-    DATA = yaml.load(yamldata)
+    DATA = yaml.load(yamldata, Loader=yamlODL.Loader)
     file.close()
 
 #Json