Python：跳过csv.DictRead中用#标记的注释行

Question

用csv.DictReader处理CSV文件很好-但是我有带注释行的CSV文件（在行的开头用散列表示），例如：

# step size=1.61853
val0,val1,val2,hybridisation,temp,smattr
0.206895,0.797923,0.202077,0.631199,0.368801,0.311052,0.688948,0.597237,0.402763
-169.32,1,1.61853,2.04069e-92,1,0.000906546,0.999093,0.241356,0.758644,0.202382
# adaptation finished

csv模块doesn't include any way to skip such lines。

我可以很容易地做一些老生常谈的事情，但我想有一个很好的方法可以将csv.DicReader包装在其他迭代器对象上，然后对其进行预处理以丢弃行。

Answer 1

实际上，这与filter很好地配合：

import csv
fp = open('samples.csv')
rdr = csv.DictReader(filter(lambda row: row[0]!='#', fp))
for row in rdr:
    print(row)
fp.close()