Search code examples
pythonpandasbigdatalarge-data

Problem reading a data from a file with pandas Python (pandas.io.parsers.TextFileReader)

i want to read a dataset from a file with pandas, but when i use pd.read_csv(), the program read it, but when i want to see the dataframe appears:

pandas.io.parsers.TextFileReader at 0x1b3b6b3e198

As additional informational the file is too large (around 9 Gigas)

The file use as a separator the vertical lines, and i tried using chunksize but it doesn't work. 

import pandas as pd
df = pd.read_csv(r"C:\Users\dguerr\Documents\files\Automotive\target_file", iterator=True, sep='|',chunksize=1000)

I want to import my data in the traditional pandas dataframe format.

Solution

  • You can load it chunk by chunk by doing:

    import pandas as pd

path_to_file = "C:/Users/dguerr/Documents/Acxiom files/Automotive/auto_model_target_file"
chunk_size = 1000
for chunk in pd.read_csv(path_to_file,chunksize=chunk_size):
     # do your stuff