Python: "Indentation Error: unindent does not match any outer indentation level"

Question

I just can't figure out what's wrong with this...

#!/usr/bin/env python # #       Bugs.py #         from __future__ import division  # No Module! if __name__ != '__main__':      print "Bugs.py is not meant to be a module"     exit()  # App import pygame, sys, random, math pygame.init()  # Configuration Vars conf = {     "start_energy": 50,      "food_energy": 25,      "mate_minenergy": 50,      "mate_useenergy": 35,      "lifespan": 300000 }  class Bugs:     def __init__(self):         self.list  = []         self.timers= {}         # Names / colors for sexes         self.sex = ["Male", "Female"]         self.color = ["#CBCB25", "#A52A2A"]         # Bug info tracking         self.bugid = 0         self.buginfo = {"maxgen":0, "maxspeed":0}      def new(self, x=False, y=False, sex=2, speed=0, generation=0, genes=[]):         sex   = sex   if not sex   == 2 else random.randint(0,1)         speed = speed if not speed == 0 else random.randint(1,3)         # Create new bug object         self.bugs.append(BugObj(sex, speed, generation, bugid, pygame.time.get_ticks, genes))         # Make sure it has a timer         if not self.timers[speed]:             self.timers[speed] = 1             pygame.time.set_timer(25 + speed, 1000 / speed)         # Update info tracking variables         if speed      > self.buginfo["maxspeed"]: self.buginfo["maxspeed"] = speed         if generation > self.buginfo["maxgen"]  : self.buginfo["maxgen"]   = generation         self.bugid += 1      def speed_count(self, speed):         a = 0         for i in list[:]:             if i.speed = speed:                 a += 1         return a  class BugObj:     def __init__(self, sex, speed, generation, bugid, born, genes):         global conf         self.sex        = sex         self.speed      = speed         self.generation = generation         self.id         = bugid         self.born       = born         self.genes      = genes         self.died       = -1         self.energy     = conf["start_energy"]         self.target     = "None"      def update(self):         global conf         if self.age() > conf["lifespan"]:             self.die()         else:             f = closest_food()             m = closest_mate()             # If there's a potential mate             if m != 0 and self.energy > conf["mate_minenergy"]:                 if not self.rect.colliderect(m.rect):                     self.move_toward(m)                     self.target = "Mate: " + str(m.rect.center)                 else:                     Bugs.mate(self, m)                     self.target = "Mate: (Reached)"             elif f != 0:                 if not self.rect.colliderect(f.rect):                     self.move_toward(f)                     self.target = "Food: " + str(f.rect.center)                 else:                     self.eat(f)                     self.target = "Food: (Reached)"             else:                 self.target = "Resting"             # Use energy             self.energy -= 0      def closest_food(self):         pass      def closest_mate(self):         pass      def age(self):         if self.died != -1:             return pygame.time.get_ticks - self.born         else:             return self.died - self.born      def die(self):         # Remove self from the list         Bugs.list.remove(self)         # Turn off timer         if not Bugs.speed_count(self.speed):             Bugs.timers[self.speed] = 0             pygame.time.timers(25 + self.speed, 0)         # Bye!         del self  class Food:     def __init__(self)         pass      def update(self)         pass  # Update Loop while 1:     ev = pygame.event.wait()     speed = ev.type - 25     if speed > 24:         for i in Bugs.list[:]:             if i.speed = speed                 i.update()                 print "Updating bug #" + str(i.id)     if speed == 0:         Food.update() 

I get the following every time:

  File "Bugs.py" line 53     def new(self, x=False, y=False, sex=2, speed=0, generation=0, genes=[]):                                                                            ^ Indentation Error: unindent does not match any outer indentation level 

Answer 1

It's possible that you have mixed tabs and spaces in your file. You can have python help check for such errors with

python -m tabnanny <name of python file>