How to do while loops with multiple conditions

Question

I have a while loop in python  condition1 False condition1 False val   -1  while condition1  False and condition2  False and val  -1      val something1 something2   getstuff        if something1  10          condition1   True      if something2  20          condition2   True        I want to break out of the loop when all these conditions are true  the code above does not work  I originally had   while True        if condition1  True and condition2  True and val  -1           break   which works ok  is this the best way to do this   Thanks

User · Accepted Answer

Change the ands to ors

User · Answer

while not condition1 or not condition2 or val    -1    But there was nothing wrong with your original of using an if inside of a while True

User · Answer

I am not sure it would read better but you could do the following   while any  not condition1  not condition2  val    -1        val something1 something2   getstuff        if something1  10          condition1   True      if something2  20          condition2   True

User · Answer

use an infinity loop like what you have originally done  Its cleanest and you can incorporate many conditions as you wish  while 1    if condition1 and condition2        break               if condition3  break

User · Answer

Have you noticed that in the code you posted  condition2 is never set to False  This way  your loop body is never executed   Also  note that in Python  not condition is preferred to condition    False  likewise  condition is preferred to condition    True

User · Answer

condition1   False condition2   False val   -1  here is the function getstuff is not defined  i hope you define it before  calling it into while loop code  while condition1 and condition2 is False and val    -1   as you can see above   we can write that in a simplified syntax      val something1 something2   getstuff        if something1    10          condition1   True      elif something2    20    here you don t have to use  if  over and over  if have to then write  elif  instead         condition2   True   ihope it can be helpfull

[python] How to do while loops with multiple conditions

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