Check if value is zero or not null in python

Question

Often I am checking if a number variable number has a value with if number but sometimes the number could be zero  So I solve this by if number or number    0   Can I do this in a smarter way  I think it s a bit ugly to check if value is zero separately   Edit  I think I could just check if the value is a number with  def is number s       try          int s          return True     except ValueError          return False   but then I will still need to check with if number and is number number

User · Answer

You can check if it can be converted to decimal  If yes  then its a number  from decimal import Decimal  def is number value       try          value   Decimal value          return True     except          return False  print is number None       False print is number 0          True print is number 2 3        True print is number  2 3       True  caveat

User · Answer

If number could be None or a number  and you wanted to include 0  filter on None instead   if number is not None    If number can be any number of types  test for the type  you can test for just int or a combination of types with a tuple   if isinstance number  int      it is an integer if isinstance number   int  float       it is an integer or a float   or perhaps   from numbers import Number  if isinstance number  Number     to allow for integers  floats  complex numbers  Decimal and Fraction objects

User · Answer

The simpler way   h      i   None j   0 k   1 print h or i or j or k   Will print 1  print k or j or i or h   Will print 1

User · Answer

Zero and None both treated as same for if block  below code should work fine   if number or number  0      return True

[python] Check if value is zero or not null in python

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