PuDBWrapper#pytest_exception_interact: Remove call to self.disable_io_capture()

.gitignore

@@ -8,7 +8,6 @@ __pycache__/
 
 # Distribution / packaging
 .Python
-env/
 build/
 develop-eggs/
 dist/
@@ -20,9 +19,12 @@ lib64/
 parts/
 sdist/
 var/
+wheels/
+share/python-wheels/
 *.egg-info/
 .installed.cfg
 *.egg
+MANIFEST
 
 # PyInstaller
 #  Usually these files are written by a python script from a template
@@ -37,13 +39,17 @@ pip-delete-this-directory.txt
 # Unit test / coverage reports
 htmlcov/
 .tox/
+.nox/
 .coverage
 .coverage.*
 .cache
 nosetests.xml
 coverage.xml
-*,cover
+*.cover
+*.py,cover
 .hypothesis/
+.pytest_cache/
+cover/
 
 # Translations
 *.mo
@@ -52,6 +58,8 @@ coverage.xml
 # Django stuff:
 *.log
 local_settings.py
+db.sqlite3
+db.sqlite3-journal
 
 # Flask stuff:
 instance/
@@ -64,26 +72,89 @@ instance/
 docs/_build/
 
 # PyBuilder
+.pybuilder/
 target/
 
-# IPython Notebook
+# Jupyter Notebook
 .ipynb_checkpoints
 
-# pyenv
-.python-version
+# IPython
+profile_default/
+ipython_config.py
 
-# celery beat schedule file
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
 celerybeat-schedule
+celerybeat.pid
 
-# dotenv
-.env
+# SageMath parsed files
+*.sage.py
 
-# virtualenv
+# Environments
+.env
+.venv
+env/
 venv/
 ENV/
+env.bak/
+venv.bak/
 
 # Spyder project settings
 .spyderproject
+.spyproject
 
 # Rope project settings
 .ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

pytest_pudb.py

@@ -1,9 +1,13 @@
 """ interactive debugging with PuDB, the Python Debugger. """
 from __future__ import absolute_import
-import pudb
+
 import sys
 import warnings
 
+import pudb
+
+ENTER_MESSAGE = "entering PuDB (IO-capturing turned off)"
+
 
 def pytest_addoption(parser):
     group = parser.getgroup("general")
@@ -51,7 +55,7 @@ def disable_io_capture(self):
                     sys.stdout.write(err)
             tw = self.pluginmanager.getplugin("terminalreporter")._tw
             tw.line()
-            tw.sep(">", "entering PuDB (IO-capturing turned off)")
+            tw.sep(">", ENTER_MESSAGE)
             self.pluginmanager.hook.pytest_enter_pdb(config=self.config)
 
     def _get_debugger(self, **kwargs):
@@ -63,7 +67,6 @@ def pytest_exception_interact(self, node, call, report):
         Pytest plugin interface for exception handling
         https://docs.pytest.org/en/latest/reference.html#_pytest.hookspec.pytest_exception_interact
         """
-        self.disable_io_capture()
         _enter_pudb(node, call.excinfo, report)
 
     def pytest_internalerror(self, excrepr, excinfo):

test_pytest_pudb.py

@@ -1,9 +1,39 @@
+import re
+import textwrap
+
+import pexpect
+import pytest
+
+from pytest_pudb import ENTER_MESSAGE
+
 pytest_plugins = "pytester"
 
 HELP_MESSAGE = "\\?\\:help"
 VARIABLES_TABLE = "V\x1b\\[0;30;47mariables:"
 
 
+@pytest.fixture(autouse=True)
+def pudb_xdg_home(tmp_path_factory):
+    import os
+    tmp_path = tmp_path_factory.mktemp("pudb")
+    os.environ["XDG_CONFIG_HOME"] = str(tmp_path)
+
+    tmp_path = tmp_path / "pudb"
+    tmp_path.mkdir(parents=True, exist_ok=True)
+    (tmp_path / "pudb.cfg").write_text(
+        textwrap.dedent(
+            """
+            [pudb]
+            prompt_on_quit = False
+            # pudb/debugger.py:DebuggerUI#event_loop#WELCOME_LEVEL:2453
+            seen_welcome = e999
+            """
+        )
+    )
+
+    yield
+
+
 def test_pudb_interaction(testdir):
     p1 = testdir.makepyfile("""
         def test_1():
@@ -57,3 +87,31 @@ def test_1():
     child.expect(HELP_MESSAGE)
     child.expect(VARIABLES_TABLE)
     child.sendeof()
+
+
+def test_pudb_avoid_double_prologue(testdir):
+    p1 = testdir.makepyfile(
+        """
+        def test_1():
+            test = []
+            assert test[0]
+    """
+    )
+
+    re_escape = re.escape(ENTER_MESSAGE).encode('utf-8')
+    re_enter = re.compile(rb"\r\n>+ %s >+\r\n" % re_escape)  # \r\n instead of ^,$
+
+    child = testdir.spawn_pytest("--pudb %s" % p1)
+    child.expect(re_enter)
+    child.expect("PuDB")
+    child.expect(HELP_MESSAGE)
+    # Check that traceback postmortem handled
+    child.expect("PROCESSING EXCEPTION")
+    child.expect(VARIABLES_TABLE)
+
+    # Exit pudb
+    child.write("q")
+    ret = child.expect([re_enter, pexpect.EOF])
+
+    if ret == 0:
+        raise RuntimeError(f"pexpect found {re_enter!r} again!")