Name norm is not defined using python 3.9 version

[akashiitd]

``[self.callPrice, self.putPrice] = self._price()
277 else:
--> 278 [self.callPrice, self.putPrice] = self._price()
279 [self.callDelta, self.putDelta] = self._delta()
280 [self.callDelta2, self.putDelta2] = self._delta2()

File c:\program files\python39\lib\site-packages\mibian_init_.py:307, in BS._price(self)
305 raise ZeroDivisionError('The strike price cannot be zero')
306 else:
--> 307 call = self.underlyingPrice * norm.cdf(self.d1) -
308 self.strikePrice * e**(-self.interestRate *
309 self.daysToExpiration) * norm.cdf(self.d2)
310 put = self.strikePrice * e**(-self.interestRate *
311 self.daysToExpiration) * norm.cdf(-self.d2) -
312 self.underlyingPrice * norm.cdf(-self.d1)
313 return [call, put]

NameError: name 'norm' is not defined

[sidnet033]

i am getting the same error. what is the solution?

[anurag199831]

pip install scipy, then using from scipy.stats import norm in my code solved it for me.

[apmcodes]

The above did not solve the issue.