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Pandas file structure not supported error

I get NotImplementedError: file structure not yet supported

when I run the code below this file

import constants, pandas, pdb
from datetime import datetime, timedelta

df = pandas.read_csv('300113R1.DNC', skiprows = 11, delim_whitespace=True,usecols=['Y','M','D','PRCP'],
                     parse_dates={"datetime": [0,1,2]}, index_col="datetime",
                    date_parser=lambda x: pandas.datetime.strptime(x, '%Y %m %d'))

Any idea on what might go wrong? The relevant query for a smaller sample of the same dataset is given below: Python pandas date parsing error while reading file

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2 answers


Thanks to @cosmoscalibur for detecting if your file is missing columns, one solution is to skip the header parsing:

df = pandas.read_csv('300113R1.DNC', skiprows = 12, delim_whitespace=True,usecols=[0,1,2,3], header=None
                     parse_dates={"datetime": [0,1,2]}, index_col="datetime",
                    date_parser=lambda x: pandas.datetime.strptime(x, '%Y %m %d'))


this requires renaming one column from "3" to "PRCP" after loading:

df = df.rename(columns={3:'PRCP'})
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NotImplementedError



is when the method is not implemented. A reference to the method name exists, but no code within the method. It is very helpful to say that this method will be part of the library in the future.

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