issue #477: add all() polyfill to custom_python_detect_environmnet

tests/ansible/lib/modules/custom_python_detect_environment.py

@@ -12,6 +12,17 @@ import socket
 import sys
 
 
+try:
+    all
+except NameError:
+    # Python 2.4
+    def all(it):
+        for elem in it:
+            if not elem:
+                return False
+        return True
+
+
 def main():
     module = AnsibleModule(argument_spec={})
     module.exit_json(