Remove unwanted exports from posix module

Author: msimacek

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/PosixModuleBuiltins.java

@@ -256,9 +256,6 @@ public PosixModuleBuiltins() {
         builtinConstants.put("O_SYNC", SYNC);
         builtinConstants.put("O_TEMPORARY", TEMPORARY);
         builtinConstants.put("O_TMPFILE", TMPFILE);
-        builtinConstants.put("SEEK_SET", SEEK_SET);
-        builtinConstants.put("SEEK_CUR", SEEK_CUR);
-        builtinConstants.put("SEEK_END", SEEK_END);
 
         builtinConstants.put("WNOHANG", WNOHANG);
         builtinConstants.put("WUNTRACED", WUNTRACED);

graalpython/lib-graalpython/_io.py

@@ -25,6 +25,9 @@
 _warn = sys.modules["_warnings"].warn
 _os = sys.modules.get("posix", sys.modules.get("nt"))
 
+SEEK_SET = 0
+SEEK_CUR = 1
+SEEK_END = 2
 
 DEFAULT_BUFFER_SIZE = 8192
 
@@ -363,7 +366,7 @@ def __init__(self, name, mode='r', closefd=True, opener=None):
             if self.__appending__:
                 # For consistent behaviour, we explicitly seek to the end of file
                 # (otherwise, it might be done only on the first write()).
-                _os.lseek(self.__fd__, 0, _os.SEEK_END)
+                _os.lseek(self.__fd__, 0, SEEK_END)
         except:
             if not fd_is_own:
                 self.__fd__ = -1
@@ -451,7 +454,7 @@ def seekable(self):
         self._checkClosed()
         if self.__seekable__ < 0:
             try:
-                _os.lseek(self.__fd__, 0, _os.SEEK_CUR)
+                _os.lseek(self.__fd__, 0, SEEK_CUR)
             except OSError:
                 self.__seekable__ = 0
             else:

graalpython/lib-graalpython/posix.py

@@ -152,9 +152,3 @@ def uname():
 @__graalpython__.builtin
 def get_terminal_size(fd = None):
     return terminal_size(old_get_terminal_size(fd))
-
-def execl(file, *args):
-    """execl(file, *args)
-    Execute the executable file with argument list args, replacing the
-    current process. """
-    execv(file, args)