hiii guys i'am new in python and pandas. i have some questions about this tutorial page from pandas

https://pandas.pydata.org/pandas-docs/stable/user_guide/advanced.html#advanced-indexing-with-hierarchical-index

how to get a list of loc

                     A         B         C
first second                               
bar   one     0.895717  0.410835 -1.413681
      two     0.805244  0.813850  1.607920
baz   one    -1.206412  0.132003  1.024180
      two     2.565646 -0.827317  0.569605
foo   one     1.431256 -0.076467  0.875906
      two     1.340309 -1.187678 -2.211372
qux   one    -1.170299  1.130127  0.974466
      two    -0.226169 -1.436737 -2.006747

In [43]: df.loc["bar"]
Out[43]: 
               A         B         C
second                              
one     0.895717  0.410835 -1.413681
two     0.805244  0.813850  1.607920

in that tutorial a "bar", was directly coded on that bracket

my question is how to get a list of loc like:

loc=[bar, baz, foo, qux]

some method if i call that method it print a list of loc

[bar, baz, foo, qux]

CodePudding user response：

try this df.index.unique(level=0) returns Index(['bar', 'baz', 'foo', 'qux'], dtype='object', name='first')