bpo-30166: Import command-line parsing modules only when needed. (#1293)

diff --git a/Lib/code.py b/Lib/code.py
index 23295f4..d8106ae 100644
--- a/Lib/code.py
+++ b/Lib/code.py
@@ -7,7 +7,6 @@
 
 import sys
 import traceback
-import argparse
 from codeop import CommandCompiler, compile_command
 
 __all__ = ["InteractiveInterpreter", "InteractiveConsole", "interact",
@@ -303,6 +302,8 @@
 
 
 if __name__ == "__main__":
+    import argparse
+
     parser = argparse.ArgumentParser()
     parser.add_argument('-q', action='store_true',
                        help="don't print version and copyright messages")