src/sage_docbuild/conf.py: Include plain Python prompts in copybutton config

Author: Matthias Koeppe

src/sage_docbuild/conf.py

@@ -305,7 +305,7 @@ def set_intersphinx_mappings(app, config):
 multidocs_is_master = True
 
 # https://sphinx-copybutton.readthedocs.io/en/latest/use.html
-copybutton_prompt_text = r"sage: |[.][.][.][.]: |\$ "
+copybutton_prompt_text = r"sage: |[.][.][.][.]: |>>> |[.][.][.] |\$ "
 copybutton_prompt_is_regexp = True
 copybutton_exclude = '.linenos, .c1'  # exclude single comments (in particular, # optional!)
 copybutton_only_copy_prompt_lines = True