tweak email-validator import error message (#145)

HISTORY.rst

@@ -3,6 +3,10 @@
 History
 -------
 
+v0.8.1 (2018-XX-XX)
+...................
+* tweak email-validator import error message #145
+
 v0.8.0 (2018-03-25)
 ...................
 * fix type annotation for ``inherit_config`` #139

pydantic/types.py

@@ -82,7 +82,7 @@ class EmailStr(str):
     def get_validators(cls):
         # included here and below so the error happens straight away
         if email_validator is None:
-            raise ImportError('email-validator is not installed, run `pip install email-validator`')
+            raise ImportError('email-validator is not installed, run `pip install pydantic[email]`')
         yield str_validator
         yield cls.validate
 
@@ -101,7 +101,7 @@ class NameEmail:
     @classmethod
     def get_validators(cls):
         if email_validator is None:
-            raise ImportError('email-validator is not installed, run `pip install email-validator`')
+            raise ImportError('email-validator is not installed, run `pip install pydantic[email]`')
         yield str_validator
         yield cls.validate
 

pydantic/utils.py

@@ -22,7 +22,7 @@ def validate_email(value) -> Tuple[str, str]:
     See RFC 5322 but treat it with suspicion, there seems to exist no universally acknowledged test for a valid email!
     """
     if email_validator is None:
-        raise ImportError('email-validator is not installed, run `pip install email-validator`')
+        raise ImportError('email-validator is not installed, run `pip install pydantic[email]`')
 
     m = PRETTY_REGEX.fullmatch(value)
     if m: