a more reasonable value.
Backport candidate.
import linecache
import cmd
import bdb
-from repr import repr as _saferepr
+from repr import Repr
import os
import re
+# Create a custom safe Repr instance and increase its maxstring.
+# The default of 30 truncates error messages too easily.
+_repr = Repr()
+_repr.maxstring = 200
+_saferepr = _repr.repr
+
__all__ = ["run", "pm", "Pdb", "runeval", "runctx", "runcall", "set_trace",
"post_mortem", "help"]