Retrieve delimiter infered by read_csv in pandas

Question

When using the configuration for automatic separator detection to read csv files (pd.read_csv(file_path, sep=None)), pandas tries to infer the delimiter (or separat

Answer 1

csv.Sniffer

The Sniffer class is used to deduce the format of a CSV file.

sniff(sample, delimiters=None)

Analyze the given sample and return a Dialect subclass reflecting the parameters found. If the optional delimiters parameter is given, it is interpreted as a string containing possible valid delimiter characters.

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Dialect.delimiter

A one-character string used to separate fields. It defaults to ','

import csv

sniffer = csv.Sniffer()
dialect = sniffer.sniff('first, second, third, fourth')
print dialect.delimiter