python - creating directories from for loop -


I need to create a directory with loop. I have a list. 

  a = [Banana 1234, Sep 456, orange 789]   
 And I need to make folders by the names of those numbers with numbers in the list Finished for example.  
  c: \ folder \ 1234; C: \ folder \ 456   
 and so on. Atrinkta for length  
 code  
  is: folder = re.findall (r '\ d {9,}', length) os.makedirs ("D: / Python_study / images / skelbimai / "+ folder)   
 but I get an error " Type error: can not add 'str' and 'list' objects " / strong> Do not know what to do. Any help please  
  edit  I tried my method a second time, after deleting the created folder for whatever reason, Python gives me an error  
  WindowsError: [Error 183] The file that already exists when a file can not be created: 'D: / python_study / images / skelbimai /'   
  2ndEdit   
 shaktimaan, I get another error now  AttributeError: There is no attribute 'group' in 'NoneType' object . what does it mean?   
 
 
 try it  
  for length in atrinkta: folder = re.search (r '(\ d +)', length) os.makedirs ("D: / python_study / images / skelbimai /" + folder.groups () [0])

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