Python, For Loop: How To Append The True Value[i] In The Next Cells[i+1,i+2,..] Until The Condition Become False

Could someone help with a logical scheme in for loop statement in Python? I try to be more clear: i want to build a for loop cycle where if a condition is TRUE i want to append the

Solution 1:

You can use a variable, here adding, to both note that you have encountered condition 1, remember the value you got then, and also to see that you have not encountered condition 2 yet, so can keep adding it:

adding = None

for i in range(1,len(close)):  
  if first_condition():  
    adding = close.close[i]
    list.append(adding) # i want to append close.close[i] for al the next cells i (i+1, i+2,...)

  #until the SECOND condition become TRUE.   
  # SECOND CONDITION:
  elif if (close.fast_ema[i-1] > close.int_ema[i-1] and close.fast_ema[i] > close.slow_ema[i]:
    list.append(close.close)
    adding = None

  else: 
    if adding is not None:
      list.append(adding)
    else:
      list.append(0)