add language_level

Author: clibdev

README.md

@@ -8,6 +8,7 @@ Differences between original repository and fork:
 * No deprecations. The following deprecations has been fixed:
   * UserWarning: torch.meshgrid: in an upcoming release, it will be required to pass the indexing argument.
   * DeprecationWarning: 'np.float' is a deprecated alias for builtin 'float'.
+  * FutureWarning: Cython directive 'language_level' not set.
 * No unnecessary files.
 
 # Installation

widerface_evaluate/setup.py

@@ -10,4 +10,4 @@
 import numpy
 
 package = Extension('bbox', ['box_overlaps.pyx'], include_dirs=[numpy.get_include()])
-setup(ext_modules=cythonize([package]))
+setup(ext_modules=cythonize([package], language_level='3str'))