Added jinja2 filters via lektor plugin to enable debug prints.

.gitignore

@@ -87,3 +87,7 @@ $RECYCLE.BIN/
 *.lnk
 
 # End of https://www.toptal.com/developers/gitignore/api/vim,adobe,windows,macos
+
+# Lektor plugin files
+**/*.egg-info/
+**/__pycache__/

packages/jinja2-filters/lektor_jinja2_fitlers.py

@@ -0,0 +1,28 @@
+from lektor.pluginsystem import Plugin
+
+class Jinja2FiltersPlugin(Plugin):
+    name = "Jinja2 Filters"
+    description = 'Custom Jinja2 filters to use with Lektor.'
+
+    def on_setup_env(self, **extra):
+        def shout_filter(value):
+            return value.upper() + '!!!!1111'
+
+        self.env.jinja_env.filters['shout'] = shout_filter
+
+        def show_all_attrs(value):
+            res = []
+            for item in dir(value):
+                res.append(str(item) + "\n")
+            return '\n'.join(res)
+
+        self.env.jinja_env.filters['show_all_attrs'] = show_all_attrs
+
+        def show_all_vars(value):
+            res = []
+            attr_list = vars(value)
+            for item in attr_list:
+                res.append(str(item) + ': ' + str(attr_list[item]))
+            return '\n'.join(res)
+
+        self.env.jinja_env.filters['show_all_vars'] = show_all_vars

packages/jinja2-filters/setup.py

@@ -0,0 +1,13 @@
+from setuptools import setup
+
+setup(
+    name='lektor-jinja2-filters',
+    version='0.2',
+    py_modules=['lektor_jinja2_fitlers'],
+    entry_points={
+        'lektor.plugins': [
+            'jinja2-filters = lektor_jinja2_fitlers:Jinja2FiltersPlugin',
+        ]
+    },
+    install_requires=[]
+)