Merge pull request #946 from kdschlosser/mypy_extensions_fix

removes whitespace from mypy_extension in install_requires.

Author: mergify[bot]

setup.py

@@ -84,7 +84,7 @@
         "wrapt~=1.10",
         'windows-curses;platform_system=="Windows"',
         "filelock",
-        "mypy_extensions >= 0.4.0, < 0.5.0",
+        "mypy_extensions>=0.4.0,<0.5.0",
         'pywin32;platform_system=="Windows"',
     ],
     extras_require=extras_require,