Strange random error

Anvil Q&A
#1

import string
import random

def id_generator(size=8, chars=string.ascii_uppercase + string.digits):
return ‘’.join(random.choice(chars) for i in range(size))

quot_id = id_generator()
print (quot_id)

in IDLE 3.4 the above code runs fine: it gives me the result I want

however, that same code in anvil form gives me an error:
TypeError: start must be a integer at [find_price, line 18]

class find_price(find_priceTemplate):
def init(self, **properties):
# Set Form properties and Data Bindings.
self.init_components(**properties)
quot_id = self.id_generator()
print (quot_id)

def id_generator(size=8, chars=string.ascii_uppercase + string.digits):
return ‘’.join(random.choice(chars) for i in range(size)) # this is line 18

I can’t figure out what is wrong
please advise

thank you so much

#2

Hi there,

To help others more easily read your code please format code by wrapping it in backticks with the word Python.

For example,

```python

print('this will be syntax highlighted')

```
1 Like
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#4

I think this is because you have missed “self” as the first argument to your “id_generator” method and so the form instance is being passed as your size argument.

2 Likes
#5

thank you everyone for your reply
as i then realized that i need to move the value of quot_id from one form to another, i moved the code to Module and it works flawlessly, albeit not as a function

size=8
chars=string.ascii_uppercase + string.digits
quot_id = ''.join(random.choice(chars) for i in range(size))

thanks

sid