python - IndentionError: unexpected indent, in except statement -

i making python program checks if server if isn't tweet saying it's down. go on tweet when comes up.

but when run code error:

  file "tweet_bot.py", line 31     textfile = open('/root/documents/server_check.txt','w')     ^ indentationerror: unexpected indent 

my code broken section below:

try :     response = urlopen( url ) except httperror, e:     tweet_text = "raspberry pi server down!"     textfile = open('/root/documents/server_check.txt','w')     textfile.write("down")     textfile.close()  except urlerror, e:     tweet_text = "raspberry pi server down!"     textfile = open('/root/documents/server_check.txt','w')     textfile.write("down")     textfile.close() else :     html = response.read()     if textfile = "down":         tweet_text = "raspberry pi server up!"         textfile = open('/root/documents/server_check.txt','w')         textfile.write("up")         textfile.close()     if textfile = "up":         tweet_text = ""         pass if len(tweet_text) <= 140 , tweet_text > 0:     api.update_status(status=tweet_text) else:     pass 

you mixing tabs , spaces:

>>> pprint import pprint >>> pprint(''' ...     tweet_text = "raspberry pi server down!" ...         textfile = open('/root/documents/server_check.txt','w') ... '''.splitlines()) ['',  '    tweet_text = "raspberry pi server down!"',  "\ttextfile = open('/root/documents/server_check.txt','w')"] 

note \t @ start of second line, first has 4 spaces instead.

python expands tabs next 8th column, more 4 spaces in first line. second line indented two indentation levels, while first indented 1 level.

the python style guide, pep 8 recommends use spaces only:

spaces preferred indentation method.

and

python 2 code indented mixture of tabs , spaces should converted using spaces exclusively.

as getting tabs configured correctly , not accidentally muck indentation mixing in few spaces hard.

configure editor convert tabs spaces when edit; way can still use tab keyboard key without falling trap.