pandas dataframe froms string
import sys
if sys.version_info[0] < 3: 
    from StringIO import StringIO
else:
    from io import StringIO
import pandas as pd
TESTDATA = StringIO("""col1;col2;col3
    1;4.4;99
    2;4.5;200
    3;4.7;65
    4;3.2;140
    """)
df = pd.read_csv(TESTDATA, sep=";")