tokenizing errors

[ranshamay]

hi guys, great work! i just ran the prettier on one of my projects and i got some bugs,

all of the above happen in python 2.7 1.on slice notation, its not detecting the parenthesis, for example, before prettier: some_var[1:] after prettier: some_var[1] 2.on not clause, not token will concatenate to the next token, before prettier: if not is_something: do_something() after prettier: if notis_something: do_something() 3.function signature with default values and splitted to few lines doesnt work well: before prettier: def init(self, db_mail_info=None, email_sent_time=None): after prettier: def init(self, db_mail_info, email_sent_time=None, ): 4. mixed and or statement removes parenthesis so the logic is changing: before prettier: if x and (y or z): do_something() after prettier: if x and y or z: do_something()

thanks!