Fix urwid compatibility

requirements.txt

@@ -1,18 +1 @@
-# =============================================================================
-# DEPRECATION WARNING:
-#
-# The file `requirements.txt` does not influence the package dependencies and
-# will not be automatically created in the next version of PyScaffold (v4.x).
-#
-# Please have look at the docs for better alternatives
-# (`Dependency Management` section).
-# =============================================================================
-#
-# Add your pinned requirements so that they can be easily installed with:
-# pip install -r requirements.txt
-# Remember to also add them in setup.cfg but unpinned.
-# Example:
-# numpy==1.13.3
-# scipy==1.0
-
-urwid==2.0.1
+urwid==2.1.2

setup.cfg

@@ -28,8 +28,9 @@ package_dir =
     =src
 # DON'T CHANGE THE FOLLOWING LINE! IT WILL BE UPDATED BY PYSCAFFOLD!
 setup_requires = pyscaffold>=3.1a0,<3.2a0
-# Add here dependencies of your project (semicolon/line-separated), e.g.
-install_requires = urwid
+# Add here dependencies of your project (semicolon/line-separated)
+install_requires =
+    urwid==2.1.2
 # The usage of test_requires is discouraged, see `Dependency Management` docs
 # tests_require = pytest; pytest-cov
 # Require a specific Python version, e.g. Python 2.7 or >= 3.4

src/redial/__init__.py

@@ -1,11 +1,14 @@
 # -*- coding: utf-8 -*-
-from pkg_resources import get_distribution, DistributionNotFound
-
 try:
-    # Change here if project is renamed and does not equal the package name
-    dist_name = __name__
-    __version__ = get_distribution(dist_name).version
-except DistributionNotFound:
-    __version__ = 'unknown'
-finally:
-    del get_distribution, DistributionNotFound
+    from importlib.metadata import version, PackageNotFoundError
+    try:
+        __version__ = version("redial")
+    except PackageNotFoundError:
+        __version__ = 'unknown'
+except ImportError:
+    # Fallback for Python < 3.8
+    from pkg_resources import get_distribution, DistributionNotFound
+    try:
+        __version__ = get_distribution("redial").version
+    except DistributionNotFound:
+        __version__ = 'unknown'