Python 2.3 (#46, Jul 29 2003, 18:54:32) [MSC v.1200 32 bit (Intel)] on win32
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IDLE 1.0      ==== No Subprocess ====
>>> import csv
>>> f=open("test.txt","rb")   # the abnormal \r containig file
>>> f1=open("test1.txt","rb")  # same file after replacing \r with x
>>> list(csv.reader(f))
Traceback (most recent call last):
  File "<pyshell#4>", line 1, in ?
    list(csv.reader(f))
Error: newline inside string
>>> list(csv.reader(f1))
[['first record', 'second record'], ['third record', 'here abnormal x char']]
>>>