pipenv: set proper typing_extensions requirement

Pipfile

@@ -19,7 +19,7 @@ pytest-random-order = "*"
 
 ## typing
 mypy = "*"
-typing-extensions = "*"
+typing-extensions = ">=3.7.4"
 
 ## style
 isort = ">=4.3.14"

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "1500571b9eec4292da6b3de3debe63a520cd0e6c26ff75b19cba948b051b507b"
+            "sha256": "dcb322f20cb35e8779f1667304894d51dcc8bdaab0ed613502cd4acd356b21ab"
         },
         "pipfile-spec": 6,
         "requires": {},
@@ -527,11 +527,11 @@
         },
         "scons": {
             "hashes": [
-                "sha256:84ff89dc0509420ed76c16a8f18076a572dc1f88d51fe5ada01fce5df5cbbbf9",
-                "sha256:94e0d0684772d3e6d9368785296716e0ed6ce757270b3ed814e5aa72d3163890"
+                "sha256:822b99f82295dfa1270f613d63a9cd43cd007c7e98b48cee28067d9c3c9fd593",
+                "sha256:fd44f8f2a4562e7e5bc8c63c82b01e469e8115805a3e9c2923ee54cdcd6678b3"
             ],
             "index": "pypi",
-            "version": "==3.1.0"
+            "version": "==3.1.1"
         },
         "shamir-mnemonic": {
             "hashes": [

python/requirements.txt

@@ -5,5 +5,5 @@ requests>=2.4.0
 click>=7,<8
 libusb1>=1.6.4
 construct>=2.9
-typing_extensions>=3.6
+typing_extensions>=3.7.4
 pyblake2>=0.9.3 ; python_version<'3.6'

python/setup.py

@@ -14,7 +14,7 @@ install_requires = [
     "click>=7,<8",
     "libusb1>=1.6.4",
     "construct>=2.9",
-    "typing_extensions>=3.6",
+    "typing_extensions>=3.7.4",
     "pyblake2>=0.9.3 ; python_version<'3.6'",
 ]