gnu: Add python-pdbpp.

* gnu/packages/python-xyz.scm (python-pdbpp): New variable.

gnu/packages/python-xyz.scm

@@ -5587,6 +5587,51 @@ (define-public python-fancycompleter
 module from the standard Python library.")
     (license license:bsd-3)))
 
+(define-public python-pdbpp
+  (package
+    (name "python-pdbpp")
+    (version "0.10.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "pdbpp" version))
+       (sha256
+        (base32
+         "1xb9yvi30rb1cdpvfdk2kg79vh3anvkz91r8bwvfp3iqv97kzr6r"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (replace 'check
+           (lambda* (#:key tests? #:allow-other-keys)
+             (when tests?
+               (invoke "pytest"
+                       "-k"
+                       (string-append
+                        ;; These tests seem to require a real TTY.
+                        "not interaction_restores_previous_sigint_handler "
+                        "and not python_m_pdb_uses_pdbpp"))))))))
+    (propagated-inputs
+     `(("python-fancycompleter" ,python-fancycompleter)
+       ("python-pygments" ,python-pygments)
+       ("python-wmctrl" ,python-wmctrl)))
+    (native-inputs
+     `(("python-pytest" ,python-pytest)
+       ("python-setuptools-scm" ,python-setuptools-scm)))
+    (home-page "https://github.com/pdbpp/pdbpp")
+    (synopsis "Drop-in replacement for pdb")
+    (description "Pdb++ is a drop-in replacement for @code{pdb}.  It
+includes the following improvements compared to @code{pdb}:
+@itemize
+@item auto-completion
+@item syntax highlighting of code listings
+@item sticky mode
+@item new commands to be used from the interactive (Pdb++) prompt
+@item smart command parsing
+@item additional convenience functions in the @code{pdb} module.
+@end itemize")
+    (license license:bsd-3)))
+
 (define-public python-pdftotext
   (package
     (name "python-pdftotext")