Utils.logger: Initialize threads in the module.

If the print cb was called from another thread it would segfault.

This was being triggered when Emotion printed out an error message.

efl/utils/logger.pyx

@@ -33,6 +33,9 @@ cdef extern from "stdarg.h":
 cdef extern from "stdio.h":
     int vsprintf(char *, const_char *fmt, va_list args)
 
+cdef extern from "Python.h":
+    void PyEval_InitThreads()
+
 cdef tuple log_levels = (
     50,
     40,
@@ -45,18 +48,24 @@ cdef dict loggers = dict()
 
 cdef char log_buf[1024]
 
-cdef void py_eina_log_print_cb(const_Eina_Log_Domain *d,
-                              Eina_Log_Level level,
-                              const_char *file, const_char *fnc, int line,
-                              const_char *fmt, void *data, va_list args) with gil:
+
+PyEval_InitThreads()
+
+cdef void py_eina_log_print_cb(const_Eina_Log_Domain *d, Eina_Log_Level level,
+    const_char *file, const_char *fnc, int line,
+    const_char *fmt, void *data, va_list args) with gil:
+
     cdef:
-        unicode msg
-        unicode name = d.name.decode("utf-8")
+        unicode msg, name
+        object rec, logger
 
     vsprintf(log_buf, fmt, args)
-    msg = log_buf.decode("utf-8")
 
-    rec = logging.LogRecord(name, log_levels[level], file, line, msg, None, None, fnc)
+    msg = log_buf.decode("utf-8")
+    name = d.name.decode("utf-8")
+
+    rec = logging.LogRecord(
+        name, log_levels[level], file, line, msg, None, None, fnc)
     logger = loggers.get(name, loggers["efl"])
     logger.handle(rec)