Get rid of ipdb/IPython.

This caused more problems than it's worth really, and it does some black magic
I'm not comfortable with.

README

@@ -26,7 +26,6 @@ The following libraries are optional and provide better debugging:
 
 * https://pypi.python.org/pypi/colorlog/[colorlog]
 * On Windows: https://pypi.python.org/pypi/colorama/[colorama]
-* https://pypi.python.org/pypi/ipdb[IPython/ipdb]
 
 .On Debian:
 

pkg/PKGBUILD.qutebrowser-git

@@ -11,8 +11,7 @@ license=('GPL')
 depends=('python>=3.3' 'python-setuptools' 'python-pyqt5>=5.2' 'qt5-base>=5.2'
          'qt5-webkit>=5.2' 'libxkbcommon-x11' 'python-rfc6266')
 makedepends=('python' 'python-setuptools')
-optdepends=('python-colorlog: colored logging output'
+optdepends=('python-colorlog: colored logging output')
-            'python-ipdb: better debugging')
 options=(!emptydirs)
 source=('qutebrowser::git://the-compiler.org/qutebrowser')
 md5sums=('SKIP')

qutebrowser/utils/debug.py

@@ -20,6 +20,7 @@
 """Utilities used for debugging."""
 
 import re
+import pdb
 import sys
 import types
 from functools import wraps
@@ -28,14 +29,6 @@ from PyQt5.QtCore import pyqtRemoveInputHook, QEvent, QCoreApplication
 
 from qutebrowser.utils.misc import elide
 from qutebrowser.utils.log import misc as logger
-
-
-try:
-    # pylint: disable=import-error
-    from ipdb import set_trace as pdb_set_trace
-except ImportError:
-    from pdb import set_trace as pdb_set_trace
-
 import qutebrowser.commands.utils as cmdutils
 
 
@@ -52,7 +45,7 @@ def set_trace():
     print("  from PyQt5 import QtCore; QtCore.pyqtRestoreInputHook()")
     print("before executing c(ontinue).")
     pyqtRemoveInputHook()
-    pdb_set_trace()
+    pdb.set_trace()
 
 
 @cmdutils.register(debug=True)

qutebrowser/utils/version.py

@@ -157,15 +157,6 @@ def _module_versions():
                 e.__class__.__name__, e))
             lines.append('SIP: ?')
 
-    try:
-        import ipdb
-        import IPython
-    except ImportError:
-        pass
-    else:
-        ver = getattr(IPython, '__version__', 'yes')
-        lines.append('ipdb/IPython: {}'.format(ver))
-
     try:
         import colorlog
     except ImportError:

setup.py

@@ -47,7 +47,7 @@ try:
                       ['qutebrowser = qutebrowser.qutebrowser:main']},
         test_suite='qutebrowser.test',
         zip_safe=True,
-        extras_require={'nice-debugging': ['colorlog', 'colorama', 'ipdb']},
+        extras_require={'nice-debugging': ['colorlog', 'colorama']},
         **setupdata
     )
 finally: