# DS-1000 / 117

task_id: 4750868b-903f-5cb2-a4a8-2652bbd7f780
task_key: default--test--117
task_revision_id: 2

{"prompt":"Problem:\nI am trying to extract rows from a Pandas dataframe using a list of row names, but it can't be done. Here is an example\n\n\n# df\n    alleles  chrom  pos strand  assembly#  center  protLSID  assayLSID  \nrs#\nTP3      A/C      0    3      +        NaN     NaN       NaN        NaN\nTP7      A/T      0    7      +        NaN     NaN       NaN        NaN\nTP12     T/A      0   12      +        NaN     NaN       NaN        NaN\nTP15     C/A      0   15      +        NaN     NaN       NaN        NaN\nTP18     C/T      0   18      +        NaN     NaN       NaN        NaN\n\n\ntest = ['TP3','TP12','TP18']\n\n\ndf.select(test)\nThis is what I was trying to do with just element of the list and I am getting this error TypeError: 'Index' object is not callable. What am I doing wrong?\n\nA:\n<code>\nimport pandas as pd\nimport io\n\ndata = io.StringIO(\"\"\"\nrs  alleles  chrom  pos strand  assembly#  center  protLSID  assayLSID\nTP3      A/C      0    3      +        NaN     NaN       NaN        NaN\nTP7      A/T      0    7      +        NaN     NaN       NaN        NaN\nTP12     T/A      0   12      +        NaN     NaN       NaN        NaN\nTP15     C/A      0   15      +        NaN     NaN       NaN        NaN\nTP18     C/T      0   18      +        NaN     NaN       NaN        NaN\n\"\"\")\ndf = pd.read_csv(data, delim_whitespace=True).set_index('rs')\ntest = ['TP3', 'TP7', 'TP18']\n</code>\nresult = ... # put solution in this variable\nBEGIN SOLUTION\n<code>\n"}

Source: https://ds1000-code-gen.github.io/

initial import

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