substitui rtyaml por yaml e remove do projeto

requirements/requirements.txt

@@ -21,7 +21,6 @@ python-decouple==3.1
 psycopg2-binary==2.7.6.1
 pyyaml==5.3.1
 pytz==2019.3
-rtyaml==1.0.0
 python-magic==0.4.15
 unipath==1.1
 WeasyPrint==51

sapl/crispy_layout_mixin.py

@@ -7,7 +7,7 @@ from django import template
 from django.urls import reverse, reverse_lazy
 from django.utils import formats
 from django.utils.translation import ugettext as _
-import rtyaml
+import yaml
 
 
 def heads_and_tails(list_of_lists):
@@ -332,17 +332,12 @@ class CrispyLayoutFormMixin:
 def read_yaml_from_file(yaml_layout):
     from django.utils.safestring import SafeText
 
-    # TODO cache this at application level
     t = template.loader.get_template(yaml_layout)
-    # aqui é importante converter para str pois, dependendo do ambiente,
-    # o rtyaml pode usar yaml.CSafeLoader, que exige str ou stream
-
     rendered = str(t.render())
-    # Força conversão para string caso seja SafeText.
     if isinstance(rendered, SafeText):
         rendered = rendered.strip()
 
-    return rtyaml.load(rendered)
+    return yaml.load(rendered)
 
 
 def read_layout_from_yaml(yaml_layout, key):

sapl/test_crispy_layout_mixin.py

@@ -1,6 +1,6 @@
 from unittest import mock
 
-import rtyaml
+import yaml
 
 from sapl.crispy_layout_mixin import read_layout_from_yaml
 
@@ -18,7 +18,7 @@ ModelName:
   - highlander '''
 
     with mock.patch('sapl.crispy_layout_mixin.read_yaml_from_file') as ryff:
-        ryff.return_value = rtyaml.load(stub_content)
+        ryff.return_value = yaml.load(stub_content)
         assert read_layout_from_yaml('....', 'ModelName') == [
             ['Cool Legend',
              [('name', 9),  ('place', 2), ('tiny', 1)],

setup.py

@@ -31,7 +31,6 @@ install_requires = [
     'psycopg2-binary==2.7.6.1',
     'pyyaml==4.2b1',
     'pytz==2018.9',
-    'rtyaml==0.0.5',
     'python-magic==0.4.15',
     'unipath==1.1',
     'WeasyPrint==44',