Use language_level 3str

Author: Matthias Koeppe

cypari2/closure.pyx

@@ -31,8 +31,6 @@ Examples:
 #                  https://www.gnu.org/licenses/
 # ****************************************************************************
 
-from __future__ import absolute_import, division, print_function
-
 from cysignals.signals cimport sig_on, sig_off, sig_block, sig_unblock, sig_error
 
 from cpython.tuple cimport *

cypari2/convert.pyx

@@ -39,8 +39,6 @@ some bit shuffling.
 #                  https://www.gnu.org/licenses/
 # ****************************************************************************
 
-from __future__ import absolute_import, division, print_function
-
 from cysignals.signals cimport sig_on, sig_off, sig_error
 
 from cpython.version cimport PY_MAJOR_VERSION

cypari2/gen.pyx

@@ -55,8 +55,6 @@ AUTHORS:
 #                  https://www.gnu.org/licenses/
 # ****************************************************************************
 
-from __future__ import absolute_import, division, print_function
-
 cimport cython
 
 from cpython.object cimport (Py_EQ, Py_NE, Py_LE, Py_GE, Py_LT, PyTypeObject)

cypari2/handle_error.pyx

@@ -21,7 +21,7 @@ AUTHORS:
 #                  https://www.gnu.org/licenses/
 # ****************************************************************************
 
-from __future__ import absolute_import, division, print_function
+from cpython cimport PyErr_Occurred
 
 from cysignals.signals cimport sig_block, sig_unblock, sig_error
 

cypari2/pari_instance.pyx

@@ -275,8 +275,6 @@ Test that changing the stack size using ``default`` works properly:
 #                  https://www.gnu.org/licenses/
 # ****************************************************************************
 
-from __future__ import absolute_import, division
-
 import sys
 from libc.stdio cimport *
 cimport cython

cypari2/stack.pyx

@@ -14,7 +14,6 @@ Memory management for Gens on the PARI stack or the heap
 #                  http://www.gnu.org/licenses/
 # ****************************************************************************
 
-from __future__ import absolute_import, division, print_function
 cimport cython
 
 from cpython.ref cimport PyObject

setup.py

@@ -35,9 +35,9 @@ def finalize_options(self):
             "autotestdict.cdef": True,
             "binding": True,
             "cdivision": True,
-            "language_level": 2,
             "legacy_implicit_noexcept": True,
             "c_api_binop_methods": True,
+            "language_level": "3str",
         }
 
         _build_ext.finalize_options(self)