我是一个Python初学者。 我面临以下问题。
每当我启动pycharm社区版（版本：5.0.3），python控制台无法启动，并显示以下错误：
usr/bin/python2.7 /usr/lib/pycharm-community/helpers/pydev/pydevconsole.py 53192 49994 Traceback (most recent call last): File "/usr/lib/pycharm-community/helpers/pydev/pydevconsole.py", line 488, in <module> pydevconsole.StartServer(pydev_localhost.get_localhost(), int(port), int(client_port)) File "/usr/lib/pycharm-community/helpers/pydev/pydevconsole.py", line 330, in StartServer interpreter = InterpreterInterface(host, client_port, threading.currentThread()) File "/usr/lib/pycharm-community/helpers/pydev/pydev_ipython_console.py", line 26, in __init__ self.interpreter = get_pydev_frontend(host, client_port) File "/usr/lib/pycharm-community/helpers/pydev/pydev_ipython_console_011.py", line 472, in get_pydev_frontend _PyDevFrontEndContainer._instance = _PyDevFrontEnd() File "/usr/lib/pycharm-community/helpers/pydev/pydev_ipython_console_011.py", line 303, in __init__ self.ipython = PyDevTerminalInteractiveShell.instance() File "/usr/lib/python2.7/dist-packages/IPython/config/configurable.py", line 354, in instance inst = cls(*args, **kwargs) File "/usr/lib/python2.7/dist-packages/IPython/terminal/interactiveshell.py", line 328, in __init__ **kwargs File "/usr/lib/python2.7/dist-packages/IPython/core/interactiveshell.py", line 483, in __init__ self.init_readline() File "/usr/lib/python2.7/dist-packages/IPython/core/interactiveshell.py", line 1816, in init_readline if self.readline_use: File "/home/vivekruhela/.local/lib/python2.7/site-packages/traitlets/traitlets.py", line 529, in __get__ return self.get(obj, cls) File "/home/vivekruhela/.local/lib/python2.7/site-packages/traitlets/traitlets.py", line 507, in get % (self.name, obj)) traitlets.traitlets.TraitError: No default value found for None trait of <pydev_ipython_console_011.PyDevTerminalInteractiveShell object at 0x7f7b0e682cd0> Process finished with exit code 1 Couldn't connect to console process.
如何连接pycharm concole。 我已经在我的系统中安装了iPython。
我遇到过同样的问题。 我通过更新ipython解决了这个问题。
我的版本是3.1.0，升级到4.1.1解决了它。
在我的情况下：
workon project pip install -U ipython
我发现这是因为我安装了ipython 4.x版本，然后恢复到3.2.0，而没有首先卸载更高级版本的traitlets。 然后这个技巧：
pip uninstall ipython[all] pip uninstall traitlets pip install ipython==3.2.0
在我的情况下，这是由于通过pip和apt IPython的安装冲突。 使用sudo apt remove ipython版本sudo apt remove ipython修复了这个问题。