Patch to add EthPM types back (#64)

* Revert "remove types related to deprecated EthPM"

This reverts commit 18e27da.

* Revert duplicate `URI` definition.

* Newsfragment for #64

docs/eth_typing.rst

@@ -76,6 +76,27 @@ A 32-byte identifier for a node in the Discovery DHT
     NodeID = NewType('NodeID', bytes)
 
 
+EthPM
+-----
+
+ContractName
+~~~~~~~~~~~~
+
+Any string conforming to the regular expression ``[a-zA-Z][a-zA-Z0-9_]{0,255}``.
+
+.. code-block:: python
+
+    ContractName = NewType('ContractName', str)
+
+URI
+~~~
+
+Any string that represents a URI.
+
+.. code-block:: python
+
+    URI = NewType('URI', str)
+
 EVM
 ---
 

eth_typing/__init__.py

@@ -32,6 +32,11 @@
 from .enums import (
     ForkName,
 )
+from .ethpm import (
+    URI,
+    ContractName,
+    Manifest,
+)
 from .evm import (
     Address,
     AnyAddress,
@@ -46,7 +51,6 @@
     ValidationError,
 )
 from .networks import (
-    URI,
     ChainId,
 )
 
@@ -72,14 +76,16 @@
     "Primitives",
     "ForkName",
     "ChainId",
+    "URI",
+    "ContractName",
+    "Manifest",
     "Address",
     "AnyAddress",
     "BlockIdentifier",
     "BlockNumber",
     "ChecksumAddress",
     "Hash32",
     "HexAddress",
-    "URI",
     "ValidationError",
     "MismatchedABI",
 )

eth_typing/ethpm.py

@@ -0,0 +1,9 @@
+from typing import (
+    Any,
+    Dict,
+    NewType,
+)
+
+ContractName = NewType("ContractName", str)
+Manifest = NewType("Manifest", Dict[str, Any])
+URI = NewType("URI", str)

eth_typing/networks.py

@@ -1,12 +1,6 @@
 from enum import (
     IntEnum,
 )
-from typing import (
-    NewType,
-)
-
-URI = NewType("URI", str)
-"""Any string that represents a URI."""
 
 
 class ChainId(IntEnum):

newsfragments/64.bugfix.rst

@@ -0,0 +1 @@
+Put back types used for `EthPM`: `ContractName`, `Manifest`, and `URI`.