ipython classic mode / precise pangolin

The Ubuntu do-release-upgrade broke my ipython classic mode. The ipython package was upgraded, and apparently the configuration parser was changed.

In bash, I want colors to help me find the beginning and end of output — see this bug report for others agreeing with me that the derogatory comment about “focus should be on the output, not on the prompt” in the skeleton .bashrc is is retared, but I diverge — in ipython, I just want to see the nice >>> blocks that I’m used to and no extra spaces. I.e.: classic mode.

Previously, one could set classic 1 in ~/.ipythonrc. Since the upgrade, one should be able to fix it by editing .config/ipython/profile_default/ipython_config.py.

However, the fixes that the pages on google propose, do not work:

c.TerminalIPythonApp.classic = True

The following does work:

# Force classic mode!
c = get_config()
c.InteractiveShell.cache_size = 0
c.PlainTextFormatter.pprint = False
c.PromptManager.in_template = '>>> '
c.PromptManager.in2_template = '... '
c.PromptManager.out_template = ''
c.InteractiveShell.separate_in = ''
c.InteractiveShell.separate_out = ''
c.InteractiveShell.separate_out2 = ''
c.InteractiveShell.colors = 'NoColor'
c.InteractiveShell.xmode = 'Plain'
#
c.InteractiveShell.confirm_exit = False
#c.IPythonTerminalApp.display_banner = False

These settings are taken from the source where the --classic option is defined, so they should be ok.

    def ipython(self):
        try:
            from IPython import embed
            embed()

    def ipython(self):
        try:
            from IPython.frontend.terminal.embed import TerminalInteractiveShell
            shell = TerminalInteractiveShell()
            shell.mainloop()