在ipython中为列表元素完成选项卡

Question

标签完成对我有用:

In [84]: a="string"

In [85]: b = ["str", "ing"]

字符串的标签完成在这里工作:

In [86]: a.
a.capitalize  a.decode      a.expandtabs  a.index       a.isdigit     a.istitle     a.ljust       a.partition   a.rindex      a.rsplit      a.splitlines  a.swapcase    a.upper       
a.center      a.encode      a.find        a.isalnum     a.islower     a.isupper     a.lower       a.replace     a.rjust       a.rstrip      a.startswith  a.title       a.zfill       
a.count       a.endswith    a.format      a.isalpha     a.isspace     a.join        a.lstrip      a.rfind       a.rpartition  a.split       a.strip       a.translate   

列表的标签完成在这里工作:

In [86]: b.
b.append   b.count    b.extend   b.index    b.insert   b.pop      b.remove   b.reverse  b.sort     

字符串的标签完成在这里不起作用:

In [87]: b[0].

一种可能的解决方法:

In [88]: c = b[0]

In [89]: c.
c.capitalize  c.decode      c.expandtabs  c.index       c.isdigit     c.istitle     c.ljust       c.partition   c.rindex      c.rsplit      c.splitlines  c.swapcase    c.upper       
c.center      c.encode      c.find        c.isalnum     c.islower     c.isupper     c.lower       c.replace     c.rjust       c.rstrip      c.startswith  c.title       c.zfill       
c.count       c.endswith    c.format      c.isalpha     c.isspace     c.join        c.lstrip      c.rfind       c.rpartition  c.split       c.strip       c.translate   

是否可以使用完成而不提及变通方法？我在ipdb中遇到类似的行为,是否有可能修复此行为？我正在使用ipythoon v3.1.0和ipdb v 0.8.谢谢

Answer 1

创建ipython配置文件:

ipython profile create testing

在ipython_config.py中取消注释此行

# Activate greedy completion
# 
# This will enable completion on elements of lists, results of function calls,
# etc., but can be unsafe because the code is actually evaluated on TAB.
c.IPCompleter.greedy = True

使用此配置文件加载IPython:

ipython notebook --profile=testing

这为列表成员和字典键和值提供了TAB完成.

一种快速的替代方法是使用dir()方法:

dir(b[0])

#returns:

['__add__', '__class__', '__contains__', '__delattr__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__getslice__', '__gt__', '__hash__', '__init__', '__le__', '__len__', '__lt__', '__mod__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmod__', '__rmul__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '_formatter_field_name_split', '_formatter_parser', 'capitalize', 'center', 'count', 'decode', 'encode', 'endswith', 'expandtabs', 'find', 'format', 'index', 'isalnum', 'isalpha', 'isdigit', 'islower', 'isspace', 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'partition', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']

另一种方法是在PTVS中使用Python或IPython交互式控制台或常规编辑器,它能够对列表元素执行完成(intellisense).