Nesting depth and check of valid or invalid values - for-loop

Question

I have a script for counting the paranthese depth of a text. My function counts the depth and checks for open parantheses, and is supposed to return the following tupel: (depth, valid, balanced).
The depth is controlling how many valid parantheses the text contains.
Valid checks if there are to many or any closing paranthese missing their counterpart, of if its a negative value.
Balanced check controlls if the value is 0 or not.
s = '((This teXt)((is)(five deep((, valid))and))balanced)\t'
te = ''.join(s).lower()
par = ''
for ch in te:
if ch not in (' ', '\n', ',', '.', '-', '–', '—', '*',
'«', '»', ':', ';', '’', '?', "'", '"',
'/', '!', '…', '´', '`', '+', '[', ']',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9','a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', 'æ', 'ø', 'å', '\t'):
par += ch
def max_dep():
count = 0
max_num = 0
for i in par:
if i == '(':
count += 1
if max_num < count:
max_num = count
if i == ')':
count -= 1
val = 0
for t in par:
if t == '(':
val += 1
if t == ')':
val -= 1
if val == 0:
val = True
else:
val = False
bal = 0
for x in par:
if x == '(':
bal += 1
if x == ')':
bal -= 1
if bal == 0:
bal = True
else:
bal = False
return max_num, val, bal
print(max_dep())
Since 'val' = 0 and 'bal' = 0, I was hoping on the print (5, True, True), but as I hvae come to understand, 0 is never True. Is there any hope to get this function to print True for 0 or do I have to start over?

Answer 1

In short: The solution was to pull back the check/ statements from the for-loop.
'''s = '((This teXt)((is)(five deep((, valid))and))balanced)\t'
te = ''.join(s).lower()
par = ''
for ch in te:
if ch not in (' ', '\n', ',', '.', '-', '–', '—', '*',
'«', '»', ':', ';', '’', '?', "'", '"',
'/', '!', '…', '´', '`', '+', '[', ']',
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9','a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', 'æ', 'ø', 'å', '\t'):
par += ch
def max_dep():
count = 0
max_num = 0
for i in par:
if i == '(':
count += 1
if max_num < count:
max_num = count
if i == ')':
count -= 1
val = 0
for t in par:
if t == '(':
val += 1
if t == ')':
val -= 1
if val < 0:
val = False
else:
val = True
bal = 0
for x in par:
if x == '(':
bal += 1
if x == ')':
bal -= 1
if bal == 0:
bal = True
else:
bal = False
return max_num, val, bal
print(max_dep())'''