'PyDevTerminalInteractiveShell' 对象没有属性 'has_readline' [英] 'PyDevTerminalInteractiveShell' object has no attribute 'has_readline'

问题描述

我在 CentOS7 上使用 Pycharm 2016.1 并且我正在测试Show command line after"我遇到了这个问题:

I am using Pycharm 2016.1 on CentOS7 and I am testing "Show command line afterwards" and I got this Problem:

AttributeError: 'PyDevTerminalInteractiveShell' object has no attribute 'has_readline'

---

/usr/bin/python3.4 /usr/local/pycharm/helpers/pydev/pydev_run_in_console.py 37196 52554 /root/PycharmProjects/mytf/mytest/test5.py
Traceback (most recent call last):
File "/usr/local/pycharm/helpers/pydev/pydev_run_in_console.py", line 63, in <module>
  interpreter = InterpreterInterface(host, int(client_port), threading.currentThread())
File "/usr/local/pycharm/helpers/pydev/_pydev_bundle/pydev_ipython_console.py", line 26, in __init__
  self.interpreter = get_pydev_frontend(host, client_port, show_banner=show_banner)
File "/usr/local/pycharm/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 473, in get_pydev_frontend
  _PyDevFrontEndContainer._instance = _PyDevFrontEnd(show_banner=show_banner)
File "/usr/local/pycharm/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 303, in __init__
  self.ipython = PyDevTerminalInteractiveShell.instance()
File "/usr/lib/python3.4/site-packages/traitlets/config/configurable.py", line 412, in instance
  inst = cls(*args, **kwargs)
File "/usr/lib/python3.4/site-packages/IPython/terminal/interactiveshell.py", line 359, in __init__
  super(TerminalInteractiveShell, self).__init__(*args, **kwargs)
File "/usr/lib/python3.4/site-packages/IPython/core/interactiveshell.py", line 487, in __init__
  self.init_completer()
File "/usr/local/pycharm/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 222, in init_completer
  self.Completer = self._new_completer_200()
File "/usr/local/pycharm/helpers/pydev/_pydev_bundle/pydev_ipython_console_011.py", line 194, in _new_completer_200
  use_readline=self.has_readline,
AttributeError: 'PyDevTerminalInteractiveShell' object has no attribute 'has_readline'

推荐答案

出现此 PyCharm 问题是因为将 iPython api 更改为 iPython 版本 5.直到 Jetbrains 修复这一点，恢复到较早版本的 iPython(版本 4)将更正此问题.正如@chenfei 发现的，这可以通过 pip 来完成:

This PyCharm issue occurs because of changes the the iPython api with iPython version 5. Until Jetbrains fix this, reverting to an earlier version of iPython (version 4) will correct this. As @chenfei has discovered, this can be done through pip:

$ pip uninstall ipython
$ pip install ipython==4.2.0

编辑

如果你等不了那么久，Jetbrains 已经发布了一个补丁

And if you can't wait that long, Jetbrains have released a patch

https://youtrack.jetbrains.com/issue/PY-20013#comment=27-1512407

最终编辑

此问题已在 PyCharm 2016.2 中修复

This issue has been fixed in PyCharm 2016.2

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