Added setup.py

paramecio/cromosoma/extrafields/emailfield.py

@@ -0,0 +1,18 @@
+from paramecio.cromosoma.corefields import CharField
+import re
+
+mail_pattern=re.compile("\w[\w\.-]*@\w[\w\.-]+\.\w+")
+
+class EmailField(CharField):
+    
+    def check(self, value):
+        
+        self.error=False
+        self.txt_error=''
+        
+        if not mail_pattern.match(value):
+            
+            self.error=True
+            self.txt_error='No valid format'
+            
+        return value