在python中检查错误

Question

在数据下载过程中遇到不协调的CSV字段。如何使用try/Except格式。

LL = [(XXX,YYY,ZZZ),] or [[XXX,YYY,ZZZ],] 

如果以上，我下面该怎么办？

try: 
    IF XXX or YYY or ZZZ or AAA == 'N/A', 
    (dont process data...skip to except and pass) 
except: 
    pass 

这里staeted： Remove/Replace Error from Tuple in python

Answer 1

注意，它通常是一个坏主意，做一个普通的except:，因为它将吞噬你需要知道的异常关于。

LL = [("bad line",456,"N/A"),["good line", 123, 456],] 

for line in LL: 
    try: 
     if "N/A" in line: 
      raise ValueError 

     print line[0] 

    except ValueError: 
     print "skipped" 

Answer 2

修订

我想这样的

try: 
    if "N/A" in [XXX,YYY,ZZZ,AAA] 
     raise Exception() 
except: 
    pass 

Answer 3

for data in LL: 
    try: 
     if "N/A" in data: 
     continue 
     else: 
     x, y, z = data 
     # Process data... 
    except Exception: 
     continue