Removed use of type argument in attr.ib() since that wasn't added until version 17.3.0.

Also:
- In setup.py require version of attrs to be >= 16.3.0
    - I think this is right, if there are any issues we can bump this to version 17.1.0

1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 53645eff..2947c2ea 100755
--- a/setup.py
+++ b/setup.py
@@ -61,7 +61,7 @@ Topic :: Software Development :: Libraries :: Python Modules
 
 SETUP_REQUIRES = ['setuptools_scm']
 
-INSTALL_REQUIRES = ['pyperclip >= 1.5.27', 'colorama', 'attrs']
+INSTALL_REQUIRES = ['pyperclip >= 1.5.27', 'colorama', 'attrs >= 16.3.0']
 
 EXTRAS_REQUIRE = {
     # Windows also requires pyreadline to ensure tab completion works