Python：全局名称re未在函数中定义

Question

I am relatively new to python and I am stumped by this error. I have a python script with three classes which imports re at the start. But when I try to use re.search or re.sub within a function in the class it gives me the error "global name re is not defined ". This is resolved when I write import re within the method.

What am I doing wrong?

import re
class Temp:
    def pluginSysLog(self):
        import re
        folderName= "plugin" 
        fileName=inspect.stack()[1][1].split("/")[len(inspect.stack()[1][1].split("/"))-1]                
        logObject = temp.loggerSetup("logObject", "/"+folderName+"/"+re.sub(".py",".log",fileName))       
        return logObject 

Error

File "./temp.py", line 151, in pluginSysLog
    logObject = temp.loggerSetup("logObject", "/"+folderName+"/"+re.sub(".py",".log",fileName))       
NameError: global name 're' is not defined

Answer 1

Not sure without more code, but:

1) If you've imported re at the top of the file, at the global level, you don't need to re-import within any classes or functions in that file

2) Be careful you haven't created any variables, function parameters, member variables, etc. with the name "re".