测试读取 csv

import pandas as pd
import io

temp=u"""index; header1; header2; header3
1; str_data; 12; 1.4
3; str_data; 22; 42.33
4; str_data; 2; 3.44
2; str_data; 43; 43.34
7; str_data; 25; 23.32"""
#after testing replace io.StringIO(temp) to filename
df = pd.read_csv(io.StringIO(temp),  
                 sep = ';', 
                 index_col = 0,
                 skip_blank_lines = True)
print (df)
         header1   header2   header3
index                               
1       str_data        12      1.40
3       str_data        22     42.33
4       str_data         2      3.44
2       str_data        43     43.34
7       str_data        25     23.32