Do not require typing-extensions on Python 3.8+ (#346)

4 files changed, 16 insertions, 4 deletions

diff --git a/papis/document.py b/papis/document.py
index d91fb58d..fffcece6 100644
--- a/papis/document.py
+++ b/papis/document.py
@@ -7,7 +7,11 @@ import shutil
 import logging
 from typing import (
     List, Dict, Any, Optional, Union, NamedTuple, Callable, Tuple)
-from typing_extensions import TypedDict
+
+try:
+    from typing import TypedDict  # Python 3.8+
+except ImportError:
+    from typing_extensions import TypedDict
 
 import papis.config
 import papis
diff --git a/papis/downloaders/base.py b/papis/downloaders/base.py
index 8a1ea32b..9af596ec 100644
--- a/papis/downloaders/base.py
+++ b/papis/downloaders/base.py
@@ -1,6 +1,10 @@
 import re
 from typing import Any, List, Dict, Iterator, Tuple, Union, Pattern
-from typing_extensions import TypedDict
+
+try:
+    from typing import TypedDict  # Python 3.8+
+except ImportError:
+    from typing_extensions import TypedDict
 
 import bs4
 
diff --git a/papis/tui/app.py b/papis/tui/app.py
index 86c2cfa4..0f405fb5 100644
--- a/papis/tui/app.py
+++ b/papis/tui/app.py
@@ -22,7 +22,11 @@ from .widgets.list import Option, OptionsList
 from typing import (  # noqa: ignore
     Optional, Dict, Any, List, Callable, Tuple, Generic,
     Sequence)
-from typing_extensions import TypedDict
+
+try:
+    from typing import TypedDict  # Python 3.8+
+except ImportError:
+    from typing_extensions import TypedDict
 
 __all__ = [
     "Option",
diff --git a/setup.py b/setup.py
index b563d555..9c95f9aa 100644
--- a/setup.py
+++ b/setup.py
@@ -71,7 +71,7 @@ setup(
         "pygments>=2.2.0",
         "stevedore>=1.30",
         "python-doi>=0.1.1",
-        "typing-extensions>=3.7",
+        "typing-extensions>=3.7 ; python_version<'3.8'",
         "lxml>=4.3.5 ; python_version>'3.5'",
         "python-slugify>=1.2.6 ; python_version>'3.4'",
     ],