diff --git a/Lib/code.py b/Lib/code.py
index 94e7777dc94..6d8c35cd1e7 100644
--- a/Lib/code.py
+++ b/Lib/code.py
@@ -1,92 +1,13 @@
-"""Utilities dealing with code objects.
+"""Utilities needed to emulate Python's interactive interpreter.
Inspired by similar code by Jeff Epler and Fredrik Lundh.
"""
+
import sys
import string
import traceback
-
-def compile_command(source, filename="", symbol="single"):
- r"""Compile a command and determine whether it is incomplete.
-
- Arguments:
-
- source -- the source string; may contain \n characters
- filename -- optional filename from which source was read; default ""
- symbol -- optional grammar start symbol; "single" (default) or "eval"
-
- Return value / exceptions raised:
-
- - Return a code object if the command is complete and valid
- - Return None if the command is incomplete
- - Raise SyntaxError or OverflowError if the command is a syntax error
- (OverflowError if the error is in a numeric constant)
-
- Approach:
-
- First, check if the source consists entirely of blank lines and
- comments; if so, replace it with 'pass', because the built-in
- parser doesn't always do the right thing for these.
-
- Compile three times: as is, with \n, and with \n\n appended. If
- it compiles as is, it's complete. If it compiles with one \n
- appended, we expect more. If it doesn't compile either way, we
- compare the error we get when compiling with \n or \n\n appended.
- If the errors are the same, the code is broken. But if the errors
- are different, we expect more. Not intuitive; not even guaranteed
- to hold in future releases; but this matches the compiler's
- behavior from Python 1.4 through 1.5.2, at least.
-
- Caveat:
-
- It is possible (but not likely) that the parser stops parsing
- with a successful outcome before reaching the end of the source;
- in this case, trailing symbols may be ignored instead of causing an
- error. For example, a backslash followed by two newlines may be
- followed by arbitrary garbage. This will be fixed once the API
- for the parser is better.
-
- """
-
- # Check for source consisting of only blank lines and comments
- for line in string.split(source, "\n"):
- line = string.strip(line)
- if line and line[0] != '#':
- break # Leave it alone
- else:
- source = "pass" # Replace it with a 'pass' statement
-
- err = err1 = err2 = None
- code = code1 = code2 = None
-
- try:
- code = compile(source, filename, symbol)
- except SyntaxError, err:
- pass
-
- try:
- code1 = compile(source + "\n", filename, symbol)
- except SyntaxError, err1:
- pass
-
- try:
- code2 = compile(source + "\n\n", filename, symbol)
- except SyntaxError, err2:
- pass
-
- if code:
- return code
- try:
- e1 = err1.__dict__
- except AttributeError:
- e1 = err1
- try:
- e2 = err2.__dict__
- except AttributeError:
- e2 = err2
- if not code1 and e1 == e2:
- raise SyntaxError, err1
+from codeop import compile_command
class InteractiveInterpreter: