Perché IPython QtConsole non si avvia?

Question

Ho installato ipython con 'pip install ipython [all]' come descritto nella pagina di installazione e ho anche installato le dipendenze di qtconsole con homebrew (qt, pyqt e sip). Tuttavia, quando provo a lanciare il qtconsole da terminale con 'ipython qtconsole', ricevo il seguente messaggio di errore:

Traceback (most recent call last): 
    File "/Users/***/.virtualenvs/data-analysis/bin/ipython", line 11, in <module> 
    sys.exit(start_ipython()) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/__init__.py", line 120, in start_ipython 
return launch_new_instance(argv=argv, **kwargs) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 563, in launch_instance 
app.initialize(argv) 
    File "<string>", line 2, in initialize 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error 
    return method(app, *args, **kwargs) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/terminal/ipapp.py", line 321, in initialize 
    super(TerminalIPythonApp, self).initialize(argv) 
    File "<string>", line 2, in initialize 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error 
    return method(app, *args, **kwargs) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/core/application.py", line 381, in initialize 
self.parse_command_line(argv) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/terminal/ipapp.py", line 316, in parse_command_line 
    return super(TerminalIPythonApp, self).parse_command_line(argv) 
    File "<string>", line 2, in parse_command_line 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error 
    return method(app, *args, **kwargs) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 475, in parse_command_line 
    return self.initialize_subcommand(subc, subargv) 
    File "<string>", line 2, in initialize_subcommand 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 92, in catch_config_error 
    return method(app, *args, **kwargs) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/config/application.py", line 406, in initialize_subcommand 
    subapp = import_item(subapp) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/utils/importstring.py", line 42, in import_item 
    module = __import__(package, fromlist=[obj]) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/qt/console/qtconsoleapp.py", line 58, in <module> 
    from IPython.external.qt import QtCore, QtGui 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/external/qt.py", line 23, in <module> 
    QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts) 
    File "/Users/***/.virtualenvs/data-analysis/lib/python2.7/site-packages/IPython/external/qt_loaders.py", line 258, in load_qt 
api_options)) 
ImportError: 
Could not load requested Qt binding. Please ensure that 
PyQt4 >= 4.7 or PySide >= 1.0.3 is available, 
and only one is imported per session. 

Currently-imported Qt library: None 
PyQt4 installed:     False 
PySide >= 1.0.3 installed:  False 
Tried to load:     ['pyside', 'pyqt'] 

cosa c'è di sbagliato qui? Qualsiasi aiuto sarebbe molto apprezzato.

Answer 1

Il messaggio di errore indica che non sono installati né PyQt4 né PySide> = 1.0.3. Dovresti controllare uno dei due pacchetti installati correttamente. Hai detto che hai installato pyqt ma hai avuto un errore. Forse, è la versione pyqt 3. PyQt versione 4 ha un nome diverso come PyQt4. In questi casi, dovresti installare pyqt4.