On Mon, Sep 01, 2014 at 11:57:08AM +1000, Cameron Simpson wrote: > On 01Sep2014 11:13, Steven D'Aprano <st...@pearwood.info> wrote: > >Just recently, I've customised my interactive Python with a powerful set > >of tab completion commands, similar to that provided by IPython. While > >typing, if I hit tab, it will try to complete the current variable, > >function, module or file name. I don't know how I programmed without it > >all these years :-) > > I must try that sometime.
Please do :-) You can get the module from here: http://code.google.com/p/tabhistory/ Or directly using Mercurial. Run this command at the shell: hg clone https://code.google.com/p/tabhistory/ For experts: you can work out what to do next :-) It's a single .py file and it has lots of documentation. For beginners: once you have run the hg comand above, copy the file tabhistory/tabhistory.py somewhere where Python will see it. Then, start the Python interactive interpreter, and run: import tabhistory If that succeeds, it is now running! If it does not, please let me know what errors you get. I am especially interested in the experience of Mac and Windows users. (Windows users: you will need the third-party pyreadline module.) Try it out: at the interactive interpreter, type: imp[TAB] where [TAB] means "press the TAB key". Python should complete the command line and give you "import". Continue to type: import co[TAB][TAB] and Python will print the names of all modules beginning with "co" that it can see. On my system, that is: code codeop colorsys compileall contextlib copy codecs collections commands compiler cookielib copy_reg Keep typing: import coll[TAB] and Python will complete the command to: import collections Additional features: - If you press TAB at the beginning of a line, it will insert an actual tab character. That can be configured if you prefer spaces. - Inside quoted strings, it will complete on file names. - After something like "from module import " pressing TAB will complete on the attributes of module, but only if module has already been imported and is in the sys.modules cache. This is a security feature. - As the name hints at, tabhistory also enables command history. Press the up-arrow repeatedly to call up previous commands, and down-arrow to move forward through the history again. tabhistory also creates two objects for customizing the completion and history functions: from tabhistory import history, completer will let you conveniently work with them. Both are extensively documented. One particularly useful feature: calling the history object history() will display the last 10 (by default) lines in the history. (Question: anyone know how to tell readline to jump straight to a particular history line? M-< goes to the oldest line in the history, and M-> goes to the most recent, but how would I go straight to line 87?) Feedback, suggestions and bug reports will be gratefully accepted. -- Steven _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
