ValueError: The truth value of a Series is ambiguous

import random
n = random.randint(0, razm)
print(n)
for index, row in tqdm_notebook(df.iterrows(), total=df.shape[0]):
   if df.loc[index] == n:
       joke = df['text']
 
print(joke)

71226
0%
0/130204 [00:00<?, ?it/s]
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-30-6d57ae3bf766> in <module>
      3 print(n)
      4 for index, row in tqdm_notebook(df.iterrows(), total=df.shape[0]):
----> 5    if df.loc[index] == n:
      6        joke = df['text']
      7 
 
/usr/local/lib/python3.7/dist-packages/pandas/core/generic.py in __nonzero__(self)
   1536     def __nonzero__(self):
   1537         raise ValueError(
-> 1538             f"The truth value of a {type(self).__name__} is ambiguous. "
   1539             "Use a.empty, a.bool(), a.item(), a.any() or a.all()."
   1540         )
 
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().