python - ubuntu下eclipse+pydev报错

Question

程序源码如下：

#coding =utf-8

def vowels_count(string):
    ret = 0
    for c in string:
        if c in "dskfhkfh":
            ret +=1
    return ret
s = "kjfhkjlf"
print vowels_count(s) 
print range(len("hello world"))

在ubuntu下的eclipse+pydev环境下，会在第10行，即

print vowels_count(s) 

处提示有错。错误信息为(这个错误信息是显示在行号前)：

Encountered "vowels_count" at line 10, column 7. Was expecting one of:     <NEWLINE> ...     "(" ...     
 "[" ...     ";" ...     "," ...     "." ...     "+" ...     "-" ...     "*" ...     "/" ...     "//" ...     "<<" ...     ">>" ...     "%" ...     "^" ...     
 "|" ...     "&" ...     "=" ...     ">" ...     "<" ...     "==" ...     "<=" ...     ">=" ...     "!=" ...     "+=" ...     "-=" ...     "*=" ...     
 "/=" ...     "//=" ...     "%=" ...     "&=" ...     "|=" ...     "^=" ...     "<<=" ...     ">>=" ...     "**=" ...     "or" ...     "and" 
 ...     "not" ...     "is" ...     "in" ...     "if" ...     ";" ...     "," ...

但是run还会有正确结果

output:
5
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Answer 1

Since it can run normally, then this is just a bug of the IDE (Python is a dynamic language, so it is difficult for the IDE's static analysis to be completely correct). If you find it annoying, you can avoid using an overly powerful IDE or turn off this prompt.

Looking at it again, it may also be information about mandatory coding style (that is, coding style issues).