Fix a dependency version requirement which was too restrictive and required bleeding edge for no good reason

Author: tleonhardt

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.2.1 (July TBD, 2020)
+* Bug Fixes
+    * Relax minimum version `importlib-metadata` to >= 1.6.0 when using Python < 3.8
+
 ## 1.2.0 (July 13, 2020)
 * Bug Fixes
     * Fixed `typing` module compatibility issue with Python 3.5 prior to 3.5.4 

setup.py

@@ -36,7 +36,7 @@
 INSTALL_REQUIRES = [
     'attrs >= 16.3.0',
     'colorama >= 0.3.7',
-    'importlib_metadata>=1.7.0;python_version<"3.8"',
+    'importlib_metadata>=1.6.0;python_version<"3.8"',
     'pyperclip >= 1.6',
     'setuptools >= 34.4',
     'wcwidth >= 0.1.7',