py3/cython: set the language_level to 3str

Summary:
Follow up to the previous diff setting language_level to 3str for
`edenscmnative/clindex.pyx`. Consistent behavior for all files.

Reviewed By: quark-zju

Differential Revision: D19634907

fbshipit-source-id: 779d6090b5660e109a37f9740299fb9623d8f34d

eden/scm/edenscm/hgext/clindex.pyx

@@ -3,6 +3,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2.
 
+# cython: language_level=3str
+
 """alternative changelog index
 
 This extension replaces certain parts of changelog index algorithms to make it

eden/scm/edenscm/hgext/extlib/linelog.pyx

@@ -3,6 +3,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2.
 
+# cython: language_level=3str
+
 from libc.errno cimport errno
 from libc.stdint cimport uint32_t, uint8_t
 from libc.stdlib cimport malloc, free, realloc

eden/scm/edenscm/hgext/patchrmdir.pyx

@@ -5,6 +5,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
+# cython: language_level=3str
+
 """patch rmdir
 
 Check if a directory is empty before trying to call rmdir on it. This works

eden/scm/edenscm/hgext/traceprof.pyx

@@ -7,6 +7,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
+# cython: language_level=3str
+
 """accurate callgraph profiling
 
 lsprof's high precision, plus statprof's intuitive output format.

eden/scm/edenscmnative/linelog.pyx

@@ -3,6 +3,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2.
 
+# cython: language_level=3str
+
 from libc.errno cimport errno
 from libc.stdint cimport uint32_t, uint8_t
 from libc.stdlib cimport malloc, free, realloc

eden/scm/edenscmnative/patchrmdir.pyx

@@ -3,6 +3,8 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2.
 
+# cython: language_level=3str
+
 """patch rmdir
 
 Check if a directory is empty before trying to call rmdir on it. This works

eden/scm/edenscmnative/traceprof.pyx

@@ -4,6 +4,7 @@
 # GNU General Public License version 2.
 
 # distutils: language = c++
+# cython: language_level=3str
 
 # traceprof.pyx - C++ to Python bridge for the traceprof Mercurial extension